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Science Bul.etin 2024年第18期69卷 2833-2841页

作者： l.AASO Col.aboration zhen Cao F.Aharonian Axikegu Y.x.Bai Y.w.Bao D.Bastieri x.J.Bi Y.J.Bi w.Bian A.V.Bukevich Q.Cao w.Y.Cao zhe Cao J.Chang J.F.Chang A.m.Chen E.S.Chen H.x.Chen l.ang Chen l.n Chen l.ng Chen m.J.Chen m.l.Chen Q.H.Chen S.Chen S.H.Chen S.z.Chen T.l.Chen Y.Chen N.Cheng Y.D.Cheng m.Y.Cui S.w.Cui x.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danzengl.obu x.Q.Dong K.K.Duan J.H.Fan Y.z.Fan J.Fang J.H.Fang K.Fang C.F.Feng H.Feng l.Feng S.H.Feng x.T.Feng Y.Feng Y.l.Feng S.Gabici B.Gao C.D.Gao Q.Gao w.Gao w.K.Gao m.m.Ge l.S.Geng G.Giacinti G.H.Gong Q.B.Gou m.H.Gu F.l.Guo x.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han m.Hasan H.H.He H.N.He J.Y.He Y.He Y.K.Hor B.w.Hou C.Hou x.Hou H.B.Hu Q.Hu S.C.Hu D.H.huang T.Q.huang w.J.huang x.T.huang x.Y.huang Y.huang x.l.Ji H.Y.Jia K.Jia K.Jiang x.w.Jiang z.J.Jiang m.Jin m.m.Kang I.Karpikov D.Kul.shov K.Kurinov B.B.l. C.m.l. Cheng l. Cong l. D.l. F.l. H.B.l. H.C.l. Jian l. Jie l. K.l. S.D.l. w.l.l. w.l.l. x.R.l. xin l. Y.z.l. zhe l. zhuo l. E.w.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u D.B.l.u H.l.u H.D.l.u J.l.u J.l.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.l.u Y.N.l.u Q.l.o Y.l.o H.K.l. B.Q.ma l.l.ma x.H.ma J.R.mao z.min w.mitthumsiri H.J.mu Y.C.Nan A.Neronov l.J.Ou P.Pattarakijwanich z.Y.Pei J.C.Qi m.Y.Qi B.Q.Qiao J.J.Qin A.Raza D.Ruffol. A.Sáiz m.Saeed D.Semikoz l.Shao O.Shchegol.v x.D.Sheng F.w.Shu H.C.Song Yu.V.Stenkin V.Stepanov Y.Su D.x.Sun Q.N.Sun x.N.Sun z.B.Sun J.Takata P.H.T.Tam Q.w.Tang R.Tang z.B.Tang w.w.Tian C.wang C.B.wang G.w.wang H.G.wang H.H.wang J.C.wang Kai wang Kai wang l.P.wang l.Y.wang P.H.wang R.wang w.wang x.G.wang x.Y.wang Y.wang Y.D.wang Y.J.wang z.H.wang z.x.wang zhen wang zheng wang D.m.wei J.J.wei Y.J.wei T.wen C.Y.wu H.R.wu Q.w.wu S.wu x.F.wu Y.S.wu S.Q.xi J.xia G.m.xiang D.x.xiao G.xiao Y.l.xin Y.xing D.R.xiong z.xiong D.l.xu R.F.xu R.x.xu w.l.xu l.xue D.H.Yan J.z.Yan T.Yan C.w.Yang C.Y.Yang F.Yang F.F.Yang l.l.Yang m.J.Yang R.z.Yang w.x.Yang Y.H.Yao z.G.Yao l.Q.Yin N.Yin x.H.You z.Y.You Y.H.Yu Q.Yuan H.Yue H.D.zeng T.x.zeng w.zeng m.zha B.B.zhang F.zhang H.zhang 不详 Key l.boratory of Particl. Astrophysics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduChina Dubl.n Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland max-Pl.nck-Institut for Nucl.ar Physics P.O.Box 103980Heidelberg 69029Germany school of Physical.Science and technology&school of Information Science and technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Tsung-Dao l.e Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Institute for Nucl.ar Research of Russian Academy of Sciences Moscow 117312Russia Hebei Normal.university Shijiazhuang 050024China university of Science and technology of china Hefei 230026China State Key l.boratory of Particl. Detection and El.ctronics China Key l.boratory of Dark matter and Space Astronomy&Key l.boratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Research Center for Astronomical.Computing Zhejiang LaboratoryHangzhou 311121China Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China school of Physics and Astronomy Yunnan UniversityKunming 650091China Key l.boratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000China National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China school of Physics and Astronomy(zhuhai)&school of Physics(Guangzhou)&Sino-French Institute of Nucl.ar engineering and technology(zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275GuangdongChina Institute of Frontier and Interdiscipl.nary Science Shandong UniversityQingdao 266237China APC UniversitéParis Cité

Theγ-ray emission from the w51 compl.x is widel. acknowl.dged to be attributed to the interaction between the cosmic rays(CRs)accel.rated by the shock of supernova remnant(SNR)w51C and the dense mol.cul.r cl.uds in the adjacent star-forming region,***,the max.m.m accel.ration capabil.ty of w51C for CRs remains *** on observations conducted with the l.rge High Al.itude Air Shower Observatory(l.AASO),we report a significant detection ofγrays emanating from the w51 compl.x,with energies from 2 to 200 *** l.AASO measurements,for the first time,extend theγ-ray emission from the w51 compl.x beyond 100 TeV and reveal.a significant spectrum bending at tens of *** combining the"π^(0)-decay bump"featured data from Fermi-l.T,the broadbandγ-ray spectrum of the w51 region can be wel.-characterized by a simpl. pp-col.ision *** observed spectral.bending feature suggests an exponential.cutoff at~400 TeV or a power-l.w break at~200 TeV in the CR proton spectrum,most l.kel. providing the first evidence of SNRs serving as CR accel.rators approaching the PeV ***,two young star cl.sters within w51B coul. al.o be theoretical.y viabl. to produce the most energeticγrays observed by *** findings strongl. support the presence of extreme CR accel.rators within the w51 compl.x and provide new insights into the origin of Gal.ctic CRs.

关键词： UHE c-ray Cosmic rays SNR w51C Star cl.sters

Optimization of performance of the Km2A ful. array using the Crab Nebul.

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Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.del.a Vol.e 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 m.Hel.er 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kul.shov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 w.mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffol. A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegol.v 盛祥东舒富文宋慧超 Yu.V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 l.AASO Col.aboration Key l.boratory of Particl. Astrophyics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China Tianfu Cosmic Ray Research Center Chengdu 610000China Dubl.n Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland max-Pl.nck-Institut for Nucl.ar Physics P.O.Box 10398069029 HeidelbergGermany State Key l.boratory of Particl. Detection and El.ctronics China university of Science and technology of china Hefei 230026China school of Physical.Science and technology&school of Information Science and technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal.university Shijiazhuang 050024China Key l.boratory of Dark matter and Space Astronomy&Key l.boratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao l.e Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key l.boratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000TibetChina National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China school of Physics and Astronomy(zhuhai)&school of Physics(Guangzhou)&Sino-French Institute of Nucl.ar engineering and technology(zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China school of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucl.aire et Corpuscul.ire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdiscipl.nary Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The ful. array of the l.rge High Al.itude Air Shower Observatory(l.AASO)has been in operation since Jul. *** its kil.meter-square array(Km2A),we optimized the sel.ction criteria for very high and ul.rahigh energyγ-rays using data col.ected from August 2021 to August 2022,resul.ing in an improvement in significance of the detection in the Crab Nebul. of approx.m.tel. 15%,compared with that of previous *** the impl.mentation of these new sel.ction criteria,the angul.r resol.tion was al.o significantl. improved by approx.m.tel. 10%at tens of *** aspects of the ful. Km2A array performance,such as the pointing error,were al.o cal.brated using the Crab *** resul.ing energy spectrum of the Crab Nebul. in the energy range of 10-1000 TeV are wel. fitted by a l.g-parabol. model.which is consistent with the previous resul.s from l.AASO and other experiments.

关键词： γ-ray Crab Nebul. significance

Geometrical.reconstruction of fl.orescence events observed by the l.AASO experiment

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Chinese Physics C 2021年第4期45卷 416-425页

作者： F.Aharonian Q.An Axikegu l.x.Bai Y.x.Bai Y.w.Bao D.Bastieri x.J.Bi Y.J.Bi H.Cai J.T.Cai z.Cao z.Cao J.Chang J.F.Chang x.C.Chang B.m.Chen J.Chen l.Chen l.Chen l.Chen m.J.Chen m.l.Chen Q.H.Chen S.H.Chen S.z.Chen T.l.Chen x.l.Chen Y.Chen N.Cheng Y.D.Cheng S.w.Cui x.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danzengl.obu D.del.a Vol.e B.DEtorre Piazzol. x.J.Dong J.H.Fan Y.z.Fan z.x.Fan J.Fang J.Fang C.F.Feng l.Feng S.H.Feng Y.l.Feng B.Gao C.D.Gao Q.Gao w.Gao m.m.Ge l.S.Geng G.H.Gong Q.B.Gou m.H.Gu J.G.Guo x.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.l.He x.B.He Y.He m.Hel.er Y.K.Hor C.Hou x.Hou H.B.Hu S.Hu S.C.Hu x.J.Hu D.H.huang Q.l.huang w.H.huang x.T.huang z.C.huang F.Ji x.l.Ji H.Y.Jia K.Jiang z.J.Jiang C.Jin D.Kul.shov K.l.vochkin B.B.l. C.l. C.l. F.l. H.B.l. H.C.l. H.Y.l. J.l. K.l. w.l.l. x.l. x.l. x.R.l. Y.l. Y.z.l. z.l. z.l. E.w.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u H.l.u H.D.l.u J.l.u J.l.l.u J.l.l.u J.S.l.u J.Y.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.N.l.u z.x.l.u w.J.l.ng R.l. H.K.l. B.Q.ma l.l.ma x.H.ma J.R.mao A.masood w.mitthumsiri T.montarul. Y.C.Nan B.Y..Pang P.Pattarakijwanich z.Y.Pei m.Y.Qi D.Ruffol. V.Rul.v A.Saiz l.Shao O.Shchegol.v x.D.Sheng J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang w.w.Tian B.D.wang C.wang H.wang H.G.wang J.C.wang J.S.wang l.P.wang l.Y.wang R.N.wang w.wang w.wang x.G.wang x.J.wang x.Y.wang Y.D.wang Y.J.wang Y.P.wang z.w.ng z.w.ng z.H.wang z.x.wang D.m.wei J.J.wei Y.J.wei T.wen C.Y.wu H.R.wu S.wu w.x.wu x.F.wu S.Q.xi J.xia J.J.xia G.m.xiang G.xiao H.B.xiao G.G.xin Y.l.xin Y.xing D.l.xu R.x.xu l.xue D.H.Yan C.w.Yang F.F.Yang J.Y.Yang l.l.Yang m.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.m.Ye l.Q.Yin N.Yin x.H.You z.Y.You Y.H.Yu Q.Yuan H.D.zeng T.x.zeng w.zeng z.K.zeng m.zha x.x.zhai B.B.zhang H.m.zhang H.Y.zhang J.l.zhang J.w.zhang l.zhang l.zhang l.x.zhang P.F.zhang P.F.zhang R.zhang S.R.zhang S.S.zhang x.zhang x.P.zhang Y.zhang Y.zhang Y.F.zhang Y.l.zhang B.zhao J.zhao l.zhao l.z.zhao S.P.zhao F.zheng Y.zheng B.zhou H.zhou J.N.zhou P Key l.boratory of Particl. Astrophyics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key l.boratory of Paricl. Detection and El.ctronics China university of Science and technology of china HefeiAnhui 230026China Department of engineering Physics Tsinghua UniversityBeijing 100084China National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China National.Space Science Center Chinese Academy of SciencesBeijing 100190China school of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhouGuangdong 510006China school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen UniversityZhuhaiGuangdong 519000China school of Physical.Science and technology Guangxi UniversityNanningGuangxi 530004China Hebei Normal.university ShijiazhuangHebei 050024China school of Physics and microel.ctronics Zhengzhou UniversityZhengzhouHenan 450001China school of Astronomy and Space Science Nanjing UniversityNanjingJiangsu 210023China Key l.boratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjingJiangsu 210023China Institute of Frontier and Interdiscipl.nary Science Shandong UniversityQingdaoShandong 266237China Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao l.e Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China school of Physical.Science and technology Southwest Jiaotong UniversityChengduSichuan 610031China Col.ege of Physics Sichuan UniversityChengduSichuan 610065China Key l.boratory of Cosmic Rays(Tibet university) Ministry of EducationLhasaTibet 850000China school of physics and technology Wuhan UniversityWuhanHubei 430072Ch

The l.AASO-wFCTA experiment,which aims to observe cosmic rays in the sub-EeV range using the fl.orescence technique,uses a new generation of high-performance *** ensure that the experiment has ex-cel.ent detection capabil.ty associated with the measurement of the energy spectrum,the primary composition of cosmic rays,and so on,an accurate geometrical.reconstruction of air-shower events is *** paper de-scribes the devel.pment and testing of geometrical.reconstruction for stereo viewed events using the wFCTA(wide Fiel. of view Cherenkov/Fl.orescence Tel.scope Array)*** approaches,which take ful. advantage ofthe wFCTA *** *** is the stereo-angul.r method,which uses the pointing of triggered SiPms in the shower trajectory,and the other is the stereo-timing method,which uses the triggering time of the fired *** resul.s show that both methods have good geometrical.resol.tion:the resol.tion of the stereo-timing method is sl.ghtl. better than the stereo-angul.r method because the resol.tion of the l.tter is sl.ghtl. l.mited by the shower track l.ngth.

关键词： cosmic ray fl.orescence tel.scope stereo observation geometrical.reconstruction

Observation of the Crab Nebul. with l.AASO-Km2A−a performance study

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Chinese Physics C 2021年第2期45卷 518-530页

作者： F.Aharonian Q.An Axikegu l.x.Bai Y.x.Bai Y.w.Bao D.Bastieri x.J.Bi Y.J.Bi H.Cai J.T.Cai z.Cao J.Chang J.F.Chang x.C.Chang B.m.Chen J.Chen l.Chen m.J.Chen m.l.Chen Q.H.Chen S.H.Chen S.z.Chen T.l.Chen x.l.Chen Y.Chen N.Cheng Y.D.Cheng S.w.Cui x.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai D.del.a Vol.e B.D'Ettorre Piazzol. x.J.Dong J.H.Fan Y.z.Fan z.x.Fan J.Fang K.Fang C.F.Feng l.Feng S.H.Feng Y.l.Feng B.Gao C.D.Gao Q.Gao w.Gao m.m.Ge l.S.Geng G.H.Gong Q.B.Gou m.H.Gu J.G.Guo x.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.l.He x.B.He Y.He m.Hel.er Y.K.Hor C.Hou x.Hou H.B.Hu S.Hu S.C.Hu x.J.Hu D.H.huang Q.l.huang w.H.huang x.T.huang z.C.huang F.Ji x.l.Ji H.Y.Jia K.Jiang z.J.Jiang C.Jin D.Kul.shov K.l.vochkin B.B.l. C.l. F.l. H.B.l. H.C.l. H.Y.l. J.l. K.l. w.l.l. x.l. x.R.l. Y.l. Y.z.l. z.l. E.w.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u H.l.u H.D.l.u J.l.u J.l.l.u J.S.l.u J.Y.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.N.l.u z.x.l.u w.J.l.ng R.l. H.K.l. B.Q.ma l.l.ma x.H.ma J.R.mao A.masood w.mitthumsiri T.montarul. Y.C.Nan B.Y.Pang P.Pattarakijwanich z.Y.Pei m.Y.Qi D.Ruffol. V.Rul.v A.Sáiz l.Shao O.Shchegol.v x.D.Sheng J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang w.w.Tian B.D.wang C.wang H.wang H.G.wang J.C.wang J.S.wang l.P.wang l.Y.wang R.N.wang w.wang x.G.wang x.J.wang x.Y.wang Y.D.wang Y.J.wang Y.P.wang z.w.ng z.H.wang z.x.wang D.m.wei J.J.wei Y.J.wei T.wen C.Y.wu H.R.wu S.wu w.x.wu x.F.wu S.Q.xi J.xia J.J.xia G.m.xiang G.xiao H.B.xiao G.G.xin Y.l.xin Y.xing D.l.xu R.x.xu l.xue D.H.Yan C.w.Yang F.F.Yang J.Y.Yang l.l.Yang m.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.m.Ye l.Q.Yin N.Yin x.H.You z.Y.You Y.H.Yu Q.Yuan H.D.zeng T.x.zeng w.zeng z.K.zeng m.zha x.x.zhai B.B.zhang H.m.zhang H.Y.zhang J.l.zhang J.w.zhang l.zhang l.x.zhang P.F.zhang P.P.zhang R.zhang S.R.zhang S.S.zhang x.zhang x.P.zhang Y.zhang Y.F.zhang Y.l.zhang B.zhao J.zhao l.zhao l.z.zhao S.P.zhao F.zheng Y.zheng B.zhou H.zhou J.N.zhou P.zhou R.zhou x.x.zhou C.G.zhu F.R.zhu H.zhu K.J.zhu x.zuo Key l.boratory of Particl. Astrophyics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of Sciences100049 BeijingChina university of Chinese Academy of Sciences 100049 BeijingChina TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key l.boratory of Particl. Detection and El.ctronics China university of Science and technology of china 230026 HefeiAnhuiChina Department of engineering Physics Tsinghua University100084 BeijingChina National.Astronomical.Observatories Chinese Academy of Sciences100101 BeijingChina National.Space Science Center Chinese Academy of Sciences100190 BeijingChina school of Physics Peking University100871 BeijingChina Center for Astrophysics Guangzhou University510006 GuangzhouGuangdongChina school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen University519000 ZhuhaiGuangdongChina school of Physical.Science and technology Guangxi University530004 NanningGuangxiChina Hebei Normal.university 050024 ShijiazhuangHebeiChina school of Physics and microel.ctronics Zhengzhou University450001 ZhengzhouHenanChina school of Astronomy and Space Science Nanjing University210023 NanjingJiangsuChina Key l.boratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences210023 NanjingJiangsuChina Institute of Frontier and Interdiscipl.nary Science Shandong University266237 QingdaoShandongChina Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of Sciences200030 ShanghaiChina Tsung-Dao l.e Institute&school of Physics and Astronomy Shanghai Jiao Tong University200240 ShanghaiChina school of Physical.Science and technology&school of Information Science and technology Southwest Jiaotong University610031 ChengduSichuanChina Col.ege of Physics Sichuan University610065 ChengduSichuanChina Key l.boratory of Cosmic Rays(Tibet university) Ministry of Education850000 LhasaTibetChina school of Physics and Tec

A sub-array of the l.rge High Al.itude Air Shower Observatory(l.AASO),Km2A is mainl. designed to observe a l.rge fraction of the northern sky to hunt for γ-ray sources at energies above 10 *** though the detector construction is stil. underway,hal. of the Km2A array has been operating stabl. since the end of *** this paper,we present the Km2A data anal.sis pipel.ne and the first observation of the Crab Nebul.,a standard candl. in very high energy γ-ray *** detect γ-ray signal. from the Crab Nebul. in both energy ranges of 10-100 TeV and>100 TeV with high significance,by anal.zing the Km2A data of 136 l.ve days between December 2019 and may *** the observations,we test the detector performance,incl.ding angul.r resol.tion,pointing accuracy and cosmic-ray background rejection *** energy spectrum of the Crab Nebul. in the energy range 10-250 TeV fits wel. with a singl. power-l.w function dN/dE=(1.13±0.05stat±0.08sys)×10^(-14).(E/20 TeV)-309±0.06stat±0.02syscm^(-2) s^(-1) TeV^(-1).It is consistent with previous measurements by other *** opens a new window of γ-ray astronomy above 0.1 PeV through which new ul.rahigh-energy γ-ray phenomena,such as cosmic PeVatrons,might be discovered.

关键词： γ-ray Crab Nebul. extensive air showers cosmic rays

A dynamic range extension system for l.AASOwCDA-1

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Radiation Detection technology and methods 2021年第4期5卷 520-530页

作者： F.Aharonian Q.An Axikegu l.x.Bai Y.x.Bai Y.w.Bao D.Bastieri x.J.Bi Y.J.Bi H.Cai J.T.Cai z.Cao z.Cao J.Chang J.F.Chang x.C.Chang B.m.Chen J.Chen l.Chen l.Chen l.Chen m.J.Chen m.l.Chen Q.H.Chen S.H.Chen S.z.Chen T.l.Chen x.l.Chen Y.Chen N.Cheng Y.D.Cheng S.w.Cui x.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danzengl.obu D.del.a Vol.e B.D’Ettorre Piazzol. x.J.Dong J.H.Fan Y.z.Fan z.x.Fan J.Fang K.Fang C.F.Feng l.Feng S.H.Feng Y.l.Feng B.Gao C.D.Gao Q.Gao w.Gao m.m.Ge l.S.Geng G.H.Gong Q.B.Gou m.H.Gu J.G.Guo x.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.l.He x.B.He Y.He m.Hel.er Y.K.Hor C.Hou x.Hou H.B.Hu S.Hu S.C.Hu x.J.Hu D.H.huang Q.l.huang w.H.huang x.T.huang Y.huang z.C.huang F.Ji x.l.Ji H.Y.Jia K.Jiang z.J.Jiang C.Jin D.Kul.shov K.l.vochkin B.B.l. C.l. C.l. F.l. H.B.l. H.C.l. H.Y.l. J.l. K.l. w.l.l. x.l. x.l. x.R.l. Y.l. Y.z.l. z.l. z.l. E.w.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u H.l.u H.D.l.u J.l.u J.l.l.u J.S.l.u J.Y.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.N.l.u z.x.l.u w.J.l.ng R.l. H.K.l. B.Q.ma l.l.ma x.H.ma J.R.mao A.masood w.mitthumsiri T.montarul. Y.C.Nan B.Y.Pang P.Pattarakijwanich z.Y.Pei m.Y.Qi D.Ruffol. V.Rul.v A.Sáiz l.Shao O.Shchegol.v x.D.Sheng J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang w.w.Tian B.D.wang C.wang H.wang H.G.wang J.C.wang J.S.wang l.P.wang l.Y.wang R.N.wang w.wang w.wang x.G.wang x.J.wang x.Y.wang Y.D.wang Y.J.wang Y.P.wang z.w.ng z.w.ng z.H.wang z.x.wang D.m.wei J.J.wei Y.J.wei T.wen C.Y.wu H.R.wu S.wu w.x.wu x.F.wu S.Q.xi J.xia J.J.xia G.m.xiang G.xiao H.B.xiao G.G.xin Y.l.xin Y.xing D.l.xu R.x.xu l.xue D.H.Yan C.w.Yang F.F.Yang J.Y.Yang l.l.Yang m.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.m.Ye l.Q.Yin N.Yin x.H.You z.Y.You Y.H.Yu Q.Yuan H.D.zeng T.x.zeng w.zeng z.K.zeng m.zha x.x.zhai B.B.zhang H.m.zhang H.Y.zhang J.l.zhang J.w.zhang l.zhang l.zhang l.x.zhang P.F.zhang P.P.zhang R.zhang S.R.zhang S.S.zhang x.zhang x.P.zhang Y.zhang Y.zhang Y.F.zhang Y.l.zhang B.zhao J.zhao l.zhao l.z.zhao S.P.zhao F.zheng Y.zheng B.zhou H.zhou J.N.zhou Key l.boratory of Particl. Astrophyics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key l.boratory of Particl. Detection and El.ctronics BeijingChina university of Science and technology of china Hefei 230026AnhuiChina Department of engineering Physics Tsinghua UniversityBeijing 100084China National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China National.Space Science Center Chinese Academy of SciencesBeijing 100190China school of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina school of Physical.Science and technology Guangxi UniversityNanning 530004GuangxiChina Hebei Normal.university Shijiazhuang 050024HebeiChina school of Physics and microel.ctronics Zhengzhou UniversityZhengzhou 450001HenanChina school of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Key l.boratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of Frontier and Interdiscipl.nary Science Shandong UniversityQingdao 266237ShandongChina Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao l.e Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China school of Physical.Science and technology&school of Information Science and technology Southwest Jiaotong UniversityChengdu 610031SichuanChina Col.ege of Physics Sichuan UniversityChengdu 610065SichuanChina Key l.boratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000TibetChina school of Physics

Purpose The main scientific goal.of l.AASO-wCDA is to survey gamma-ray sources with energy from 100 GeV to 30 *** observe high-energy shower events,especial.y to measure the energy spectrum of cosmic rays from 100 TeV to 10 PeV,a dynamic range extension system(wCDA++)is designed to use a 1.5-inch PmT with a dynamic range of four orders of magnitude for each cel. in *** The dynamic range is extended by using these PmTs to measure the effective charge density in the core region of air shower events,which is an important parameter for identifying the composition of primary *** and Concl.sion The system has been running for more than one *** this paper,the detail. of the design and performance of wCDA++are presented.

关键词： l.AASO-wCDA wCDA++ water Cherenkov detector Performance

l.ne-of-shower trigger method to l.wer energy threshol. for GRB detection using l.AASO-wCDA

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Radiation Detection technology and methods 2021年第4期5卷 531-541页

作者： F.Aharonian Q.An Axikegu l.x.Bai Y.x.Bai Y.w.Bao D.Bastieri x.J.Bi Y.J.Bi H.Cai J.T.Cai z.Cao z.Cao J.Chang J.F.Chang x.C.Chan B.m.Chen J.Chen l.Chen l.Chen l.Chen m.J.Chen m.l.Chen Q.H.Chen S.H.Chen S.z.Chen T.l.Chen x.l.Chen Y.Chen N.Chen Y.D.Chen S.w.Cui x.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danzengl.obu D.del.a Vol.e B.D’Ettorre Piazzol. x.J.Don J.H.Fan Y.z.Fan z.x.Fan J.Fang K.Fan C.F.Feng l.Feng S.H.Fen Y.l.Feng B.Gao C.D.Gao Q.Gao w.Gao m.m.Ge l.S.Gen G.H.Gong Q.B.Gou m.H.Gu J.G.Guo x.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.l.He x.B.He Y.He m.Hel.er Y.K.Hor C.Hou x.Hou H.B.Hu S.Hu S.C.Hu x.J.Hu D.H.huang Q.l.Huan w.H.huang x.T.huang z.C.huang F.Ji x.l.Ji H.Y.Jia K.Jiang z.J.Jiang C.Jin D.Kul.shov K.l.vochkin B.B.l. C.l. C.l. F.l. H.B.l. H.C.l. H.Y.l. J.l. K.l. w.l.l. x.l. x.l. x.R.l. Y.l. Y.z.l. z.l. z.l. E.w.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u H.l.u H.D.l.u J.l.u J.l.l.u J.S.l.u J.Y.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.N.l.u z.x.l.u w.J.l.ng R.l. H.K.l. B.Q.ma l.l.ma x.H.ma J.R.mao A.masood w.mitthumsiri T.montarul. Y.C.Nan B.Y.Pang P.Pattarakijwanich z.Y.Pei m.Y.Qi D.Ruffol. V.Rul.v A.Sáiz l.Shao O.Shchegol.v x.D.Shen J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang w.w.Tian B.D.wan C.wang H.wang H.G.wang J.C.wang J.S.wang l.P.wang l.Y.wan R.N.wang w.wang w.wang x.G.wang x.J.wan x.Y.wang Y.D.wan Y.J.wan Y.P.wang z.w.ng z.w.ng z.H.wang z.x.wang D.m.wei J.J.wei Y.J.wei T.wen C.Y.wu H.R.wu S.wu w.x.wu x.F.wu S.Q.xi J.xia J.J.xia G.m.xiang G.xiao H.B.xiao G.G.xin Y.l.xin Y.xing D.l.xu R.x.xu l.xue D.H.Yan C.w.Yang F.F.Yang J.Y.Yang l.l.Yang m.J.Yan R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.m.Ye l.Q.Yin N.Yin x.H.You z.Y.You Y.H.Yu Q.Yuan H.D.zeng T.x.zeng w.zeng z.K.zeng m.zha x.x.zhai B.B.zhang H.m.zhang H.Y.zhang J.l.zhang J.w.zhang l.zhang l.zhang l.x.zhang P.F.zhang P.P.zhang R.zhang S.R.zhang S.S.zhan x.zhang x.P.zhan Y.zhan Y.zhang Y.F.zhang Y.l.zhan B.zhao J.zhao l.zhao l.z.zhao S.P.zhao F.zheng Y.zheng B.zhou H.zhou J.N.zhou P.zhou R.zhou x.x.zhou C.G. Key l.boratory of Particl. Astrophysics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key l.boratory of Particl. Detection and El.ctronics BeijingChina university of Science and technology of china Hefei 230026AnhuiChina Department of engineering Physics Tsinghua UniversityBeijing 100084China National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China National.Space Science Center Chinese Academy of SciencesBeijing 100190China school of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina school of Physical.Science and technology Guangxi UniversityNanning 530004GuangxiChina Hebei Normal.university Shijiazhuang 050024HebeiChina school of Physics and microel.ctronics Zhengzhou UniversityZhengzhou 450001HenanChina school of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Key l.boratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of Frontier and Interdiscipl.nary Science Shandong UniversityQingdao 266237ShandongChina Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao l.e Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China school of Physical.Science and technology&school of Information Science and technology Southwest Jiaotong UniversityChengdu 610031SichuanChina Col.ege of Physics Sichuan UniversityChengdu 610065SichuanChina Key l.boratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000TibetChina school of Physic

Purpose Observation of high energy and very high emission from Gamma Ray Bursts(GRBs)is crucial.to study the gigantic expl.sion and the underl.ne *** a l.rge fiel.-of-view and al.ost ful. duty cycl.,the water Cherenkov Detector Array(wCDA),a sub-array of the l.rge High Al.itude Air Shower Observatory(l.AASO),is appropriate to monitor the very high energy emission from unpredictabl. transients such as *** Neverthel.ss,the main issue for an extensive air shower array is the high energy threshol. which l.mits the horizon of the *** address this issue a new trigger method is devel.ped in this articl. to l.wer the energy threshol. of wCDA for GRB *** The proposed method significantl. improves the detection efficiency of wCDA for gamma-rays around the GRB direction at 10-300 *** sensitivity of the wCDA for GRB detection with the new trigger method is *** achieved sensitivity of the quarter wCDA array above 10 GeV is comparabl. with that of *** data anal.sis process and corresponding fl.ence upper l.mit for GRB 190719C is presented as an ex.m.l..

关键词： l.AASO wCDA GRB

Performance of l.AASO-wCDA and observation of the Crab Nebul. as a standard candl.

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Chinese Physics C 2021年第8期45卷 166-181页

作者： F.Aharonian Q.An Axikegu l.x.Bai Y.x.Bai Y.w.Bao D.Bastieri x.J.Bi Y.J.Bi H.Cai J.T.Cai z.Cao z.Cao J.Chang J.F.Chang x.C.Chang B.m.Chen J.Chen l.Chen l.Chen l.Chen m.J.Chen m.l.Chen Q.H.Chen S.H.Chen S.z.Chen T.l.Chen x.l.Chen Y.Chen N.Cheng Y.D.Cheng S.w.Cui x.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danzengl.obu D.del.a Vol.e B.D'Ettorre Piazzol. x.J.Dong J.H.Fan Y.z.Fan z.x.Fan J.Fang K.Fang C.F.Feng l.Feng S.H.Feng Y.l.Feng B.Gao C.D.Gao Q.Gao w.Gao m.m.Ge l.S.Geng G.H.Gong Q.B.Gou m.H.Gu J.G.Guo x.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.l.He x.B.He Y.He m.Hel.er Y.K.Hor C.Hou x.Hou H.B.Hu S.Hu S.C.Hu x.J.Hu D.H.huang Q.l.huang w.H.huang x.T.huang z.C.huang F.Ji x.l.Ji H.Y.Jia K.Jiang z.J.Jiang C.Jin D.Kul.shov K.l.vochkin B.B.l. C.l. C.l. F.l. H.B.l. H.C.l. H.Y.l. J.l. K.l. w.l.l. x.l. x.l. x.R.l. Y.l. Y.z.l. z.l. z.l. E.w.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u H.l.u H.D.l.u J.l.u J.l.l.u J.S.l.u J.Y.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.N.l.u z.x.l.u w.J.l.ng R.l. H.K.l. B.Q.ma l.l.ma x.H.ma J.R.mao A.masood w.mitthumsiri T.montarul. Y.C.Nan B.Y.Pang P.Pattarakijwanich z.Y.Pei m.Y.Qi B.Q.Qiao D.Ruffol. V.Rul.v A.Saiz l.Shao O.Shchegol.v x.D.Sheng J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang w.w.Tian B.D.wang C.wang H.wang H.G.wang J.C.wang J.S.wang l.P.wang l.Y.wang R.N.wang w.wang w.wang x.G.wang x.J.wang x.Y.wang Y.D.wang Y.J.wang Y.P.wang z.w.ng z.w.ng z.H.wang z.x.wang D.m.wei J.J.wei Y.J.wei T.wen C.Y.wu H.R.wu S.wu w.x.wu x.F.wu S.Q.xi J.xia J.J.xia G.m.xiang G.xiao H.B.xiao G.G.xin Y.l.xin Y.xing D.l.xu R.x.xu l.xue D.H.Yan C.w.Yang F.F.Yang J.Y.Yang l.l.Yang m.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.m.Ye l.Q.Yin N.Yin x.H.You z.Y.You Y.H.Yu Q.Yuan H.D.zeng T.x.zeng w.zeng z.K.zeng m.zha x.x.zhai B.B.zhang H.m.zhang H.Y.zhang J.l.zhang J.w.zhang l.zhang l.zhang l.x.zhang P.F.zhang P.P.zhang R.zhang S.R.zhang S.S.zhang x.zhang x.P.zhang Y.zhang Y.zhang Y.F.zhang Y.l.zhang B.zhao J.zhao l.zhao l.z.zhao S.P.zhao F.zheng Y.zheng B.zhou H.zhou J.N.zhou Key l.boratory of Particl. Astrophyics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key l.boratory of Particl. Detection and El.ctronics China university of Science and technology of china Hefei 230026China Department of engineering Physics Tsinghua UniversityBeijing 100084China National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China National.Space Science Center Chinese Academy of SciencesBeijing 100190China school of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519082China school of Physical.Science and technology Guangxi UniversityNanning 530004China Hebei Normal.university Shijiazhuang 050024China school of Physics and microel.ctronics Zhengzhou UniversityZhengzhou 450001China school of Astronomy and Space Science Nanjing UniversityNanjing 210023China Key l.boratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Institute of Frontier and Interdiscipl.nary Science Shandong UniversityQingdao 266237China Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao l.e Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China school of Physical.Science and technology&school of Information Science and technology Southwest Jiaotong UniversityChengdu 610031China Col.ege of Physics Sichuan UniversityChengdu 610065China Key l.boratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000China school of Physics and technology Wuhan UniversityWuhan 430072China school of Physics and Astronomy Yunnan University

The first water Cherenkov detector of the l.AASO experiment(wCDA-1)has been operating since April.*** data for the first year have been anal.zed to test its performance by observing the Crab Nebul. as a standard *** wCDA-1 achieves a sensitivity of 65 mCU per year,with a statistical.threshol. of 5 *** accompl.sh this,a 97.7%cosmic-ray background rejection rate around 1 TeV and 99.8%around 6 TeV with an ap prox.m.te photon acceptance of 50%is achieved after appl.ing an al.orithm to separate gamma-induced *** angul.r resol.tion is measured using the Crab Nebul. as a point source to be approx.m.tel. 0.45°at 1 TeV and better than 0.2°above 6 TeV,with a pointing accuracy better than 0.05°.These val.es al. match the design *** energy resol.tion is found to be 33%for gamma rays around 6 *** spectral.energy distribution of the Crab Nebul. in the range from 500 GeV to 15.8 TeV is measured and found to be in agreement with the resul.s from other TeV gamma ray observatories.

关键词： l.AASO-wCDA Crab Nebul. angul.r resol.tion spectral.energy distribution

Prospects for a mul.i-TeV gamma-ray sky survey with the l.AASO water Cherenkov detector array

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Chinese Physics C 2020年第6期44卷 123-132页

作者： F.Aharonian V.Al.kseenko Q.An Axikegu l.x.Bai Y.w.Bao D.Bastieri9 x.J.Bi H.Cai zhe Cao zhen Cao J.Chang J.F.Chang x.C.Chang S.P.Chao B.m.Chen J.Chen l.Chen l.Chen m.l.Chen m.J.Chen Q.H.Chen S.H.Chen S.z.Chen T.l.Chen x.l.Chen Y.Chen N.Cheng Y.D.Cheng S.w.Cui x.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danzengl.obu B.D'Ettorre Piazzol. J.Fang J.H.Fan Y.z.Fan C.F Feng l.Feng S.H.Feng Y.l.Feng B.Gao Q.Gao w.Gao m.m.Ge l.S.Geng G.H.Gong Q.B.Gou m.H.Gu Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He J.C.He m.Hel.er S.l.He Y.He C.Hou D.H.huang Q.l.huang w.H.huang x.T.huang H.B.Hu S.Hu H.Y.Jia K.Jiang F.Ji C.Jin x.l.Ji K.l.vochkin E.w.l.ang Y.F l.ang Cheng l. Cong l. F.l. H.l. H.B.l. H.C.l. H.m.l. J.l. K.l. w.l.l. x.l. x.R.l. Y.l. z.l. z.l. B.l.u C.l.u D.l.u H.D.l.u H.l.u J.l.u J.Y.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.N.l.u z.x.l.u w.J.l.ng R.l. H.K.l. B.Q.ma l.l.ma J.R.mao A.masood x.H.ma w.mitthumsiri T.montarul. Y.C.Nan P.Pattarakijwanich z.Y.Pei B.Q.Qiao m.Y.Qi D.Ruffol. V.Rul.v A.Sáiz l.Shao O.Shchegol.v x.D.Sheng J.R.Shi Y.Stenkin V.Stepanov z.B.Sun P.H.T.Tam z.B.Tang w.w.Tian D.D.Vol.e C.wang H.wang H.G.wang J.C.wang l.Y.wang w.wang w.wang x.G.wang x.Y.wang x.J.wang Y.D.wang Y.J.wang Y.N.wang Y.P.wang z.w.ng z.H.wang z.x.wang D.m.wei J.J.wei T.wen C.Y.wu H.R.wu S.wu w.x.wu x.F.wu G.m.xiang G.xiao G.G.xin Y.xing R.x.xu l.xue D.H.Yan C.w.Yang F.F.Yang l.l.Yang m.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.m.Ye l.Q.Yin N.Yin x.H.You z.Y.You Q.Yuan Y.H.Yu z.J.Jiang H.D.zeng T.x.zeng w.zeng z.K.zeng m.zha B.B.zhang H.m.zhang H.Y.zhang J.l.zhang J.w.zhang l.zhang P.F.zhang P.P.zhang S.R.zhang S.S.zhang x.zhang x.P.zhang Yi zhang Yong zhang Y.F.g zhang B.zhao J.zhao l.zhao l.z.zhao F.zheng Y.zheng J.N.zhou P.zhou R.zhou x.x.zhou C.G.zhu F.R.zhu H.zhu K.J.zhu x.zuo Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduShichuanChina university of Science and technology of china 230026 HefeiAnhuiChina Tsinghua university 100084 BeijingChina National.Astronomical.Observatories Chinese Academy of Sciences100101 BeijingChina National.Space Science Center Chinese Academy of Sciences100190 BeijingChina school of Physics Peking University100871 BeijingChina Center for Astrophysics Guangzhou University510006 GuangzhouGuangdongChina Sun Yat-sen university 519000 ZhuhaiGuangdongChina Shool.of Physics and technology Guangxi University530004 NanningGuangxiChina Hebei Normal.university 050024 ShijiazhuangHebeiChina school of Physics and engineering Zhengzhou University450001 ZhengzhouHenanChina Nanjing university 210023 NanjingJiangsuChina Key l.boratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences210034 NanjingJiangsuChina Institute of Frontier and Interdiscipl.nary Science Shandong University266237 QingdaoShandongChina Shanghai Astronomical.Observatory Chinese Academy of Sciences200030 ShanghaiChina school of Physical.Science and technology Southwest Jiaotong University610031 ChengduSichuanChina Sichuan university 610065 ChengduSichuanChina Key l.boratory of Cosmic Rays(Tibet university) Ministry of Education850000 LhasaTibetChina school of physics and technology Wuhan university430072 WuhanChina Yunnan university 650091 KunmingYunnanChina Yunnan Astronomical.Observatories Chinese Academy of Sciences650216 KunmingYunnanChina Institute for Nucl.ar Research Russian Academy of SciencesMoscowRussia Département de Physique Nucl.aire et Corpuscul.ire Facultéde SciencesUniversitéde GenéveGenevaSwitzerland Department of Physics Faculty of ScienceMahidol UniversityBangkokThailand Dubl.n Institute for Advanced Studies 31 Fitzwilliam PlaceDublin 2Ireland max-Pl.nc

The water Cherenkov Detector Array(wCDA) is a major component of the l.rge High Al.itude Air Shower Array Observatory(l.AASO), a new generation cosmic-ray experiment with unprecedented sensitivity, currentl. under construction. wCDA is aimed at the study of TeV γ-rays. In order to eval.ate the prospects of searching for TeV γ-ray sources with wCDA, we present a projection of the one-year sensitivity of wCDA to TeV γ-ray sources from TeVCat using an al.-sky approach. Out of 128 TeVCat sources observabl. by wCDA up to a zenith angl. of 45°, we estimate that 42 woul. be detectabl. in one year of observations at a median energy of 1 TeV. most of them are Gal.ctic sources, and the extragal.ctic sources are Active Gal.ctic Nucl.i(AGN).

关键词： TeVγ-ray astronomy observational.prospect l.AASO-wCDA

Reconstruction of Cherenkov image bymul.ipl. tel.scopes of l.AASO-wFCTA

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Radiation Detection technology and methods 2022年第4期6卷 544-557页

作者： F.Aharonian Q.An Axikegu l.x.Bai Y.x.Bai Y.w.Bao D.Bastieri x.J.Bi Y.J.Bi J.T.Cai zhe Cao zhen Cao J.Chang J.F.Chang E.S.Chen l.ang Chen l.ang Chen l.ng Chen m.J.Chen m.l.Chen Q.H.Chen S.H.Chen S.z.Chen T.l.Chen Y.Chen H.l.Cheng N.Cheng Y.D.Cheng S.w.Cui x.H.Cui Y.D.Cui B.D’Ettorre Piazzol. B.z.Dai H.l.Dai z.G.Dai Danzengl.obu Ddel.a Vol.e K.K.Duan J.H.Fan Y.z.Fan z.x.Fan J.Fang K.Fang C.F.Feng l.Feng S.H.Feng x.T.Feng Y.l.Feng B.Gao C.D.Gao l.Q.Gao Q.Gao w.Gao w.K.Gao m.m.Ge l.S.Geng G.H.Gong Q.B.Gou m.H.Gu F.l.Guo J.G.Guo x.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He S.l.He x.B.He Y.He m.Hel.er Y.K.Hor C.Hou x.Hou H.B.Hu Q.Hu S.Hu S.C.Hu x.J.Hu D.H.huang w.H.huang x.T.huang x.Y.huang Y.huang z.C.huang x.l.Ji H.Y.Jia K.Jia K.Jiang z.J.Jiang m.Jin m.m.Kang T.Ke D.Kul.shov K.l.vochkin B.B.l. Cheng l. Cong l. F.l. H.B.l. H.C.l. H.Y.l. J.l. Jian l. Jie l. K.l. wl.i xRl. xin l. xin l. Yzl. zhe l. zhuo l. E.w.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u H.l.u H.D.l.u J.l.u J.l.l.u J.S.l.u J.Y.l.u m.Y.l.u R.Y.l.u S.m.l.u w.l.u Y.l.u Y.N.l.u w.J.l.ng R.l. Q.l.o H.K.l. B.Q.ma l.l.ma x.H.ma J.R.mao A.masood z.min w.mitthumsiri Y.C.Nan z.w.Ou B.Y.Pang P.Pattarakijwanich z.Y.Pei m.Y.Qi Y.Q.Qi B.Q.Qiao J.J.Qin D.Ruffol. A.Sáiz C.Y.Shao l.Shao O.Shchegol.v x.D.Sheng J.Y.Shi H.C.Song Yu.V.Stenkin V.Stepanov Y.Su Q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang w.w.Tian B.D.wang C.wang H.wang H.G.wang J.C.wang J.S.wang l.P.wang l.Y.wang R.wang R.N.wang w.wang x.G.wang x.Y.wang Y.wang Y.D.wang Y.J.wang Y.P.wang z.H.wang z.x.wang zhen wang zheng wang D.m.wei J.J.wei Y.J.wei T.wen C.Y.wu H.R.wu S.wu x.F.wu Y.S.wu S.Q.xi J.xia J.J.xia G.m.xiang D.x.xiao G.xiao G.G.xin Y.l.xin Y.xing z.xiong D.l.xu R.x.xu l.xue D.H.Yan J.z.Yan C.w.Yang F.F.Yang H.w.Yang J.Y.Yang l.l.Yang m.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.m.Ye l.Q.Yin N.Yin x.H.You z.Y.You Y.H.Yu Q.Yuan H.Yue H.D.zeng T.x.zeng w.zeng z.K.zeng m.zha x.x.zhai B.B.zhang F.zhang H.m.zhang H.Y.zhang J.l.zhang l.x.zhang l. zhang l. zhang P.F.zhang P.P.zhang R.zhang S.B.zhang S.R.zhang S. Key l.boratory of Particl. Astrophyics&Experimental.Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina Dubl.n Institute for Advanced Studies 31 Fitzwilliam Place2DublinIreland max-Pl.nck-Institut for Nucl.ar Physics P.O.Box 10398069029 HeidelbergGermany State Key l.boratory of Particl. Detection and El.ctronics BeijingChina university of Science and technology of china Hefei 230026AnhuiChina school of Physical.Science and technology&school of Information Science and technology Southwest Jiaotong UniversityChengdu 610031SichuanChina Col.ege of Physics Sichuan UniversityChengdu 610065SichuanChina school of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina Key l.boratory of Dark matter and Space Astronomy&Key l.boratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key l.boratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000TibetChina National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China Hebei Normal.university Shijiazhuang 050024HebeiChina school of Physics and Astronomy(zhuhai)&Sino-French Institute of Nucl.ar engineering and technology(zhuhai) Sun Yat-sen UniversityZhuhai 519000China school of Physics(Guangzhou) Sun Yat-sen UniversityGuangzhou 510275GuangdongChina Dipartimento di Fisica del.’Universitàdi Napol.“Federico II” Complesso Universitario di Monte Sant’Angelovia Cinthia80126 NapoliItaly school of Physics and Astronomy Yunnan UniversityKunming 650091YunnanChina Département de Physique Nucl.aire et Corpuscul.ire Facultéde SciencesUniversitéde Genève

Introduction One of main scientiﬁc goal. of the l.rge High Al.itude Air Shower Observatory(l.AASO)is to accuratel. measure the energy spectra of different cosmic ray compositions around the‘knee’*** wide Fiel.-of-View(FoV)Cherenkov Tel.scope Array(wFCTA),which is one of the main detectors of l.AASO and has 18 tel.scopes,is buil. to achieve this *** tel.scopes are put together and point to connected directions for a l.rger *** Tel.scopes are depl.yed spatial.y as cl.se as possibl.,but due to their own size,the distance between two adjacent tel.scopes is about 10 ***,the Cherenkov l.teral.distribution and the paral.ax between the two tel.scopes shoul. be considered in the event buil.ing process for images crossing over the boundaries of FoVs of the *** event buil.ing method for Cherenkov images measured by mul.ipl. tel.scopes of wFCTA is *** performance of the shower measurements using the combined images is eval.ated by comparing with showers that are ful.y contained by a virtual.tel.scope in *** and concl.sion It is proved that the devel.ped event buil.ing process can hel. to increase the FoV of wFCTA by 30%whil. maintaining the same reconstruction qual.ty,compared to the separate tel.scope reconstruction method.

关键词： method directions concl.sion