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Two methods for separating the magnetospheric solar wind charge exchange soft X-ray emission from the diffuse X-ray background

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Earth and Planetary Physics 2024年第1期8卷 119-132页

作者： YingJie zhang TianRan Sun JenniferACarter WenHao Liu Steve Sembay shuinai zhang Li Ji Chi Wang State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China College of Earth and Planetary Sciences The University of Chinese Academy of SciencesBeijing 100190China School of Physics and Astronomy The University of LeicesterLeicesterUK Purple Mountain Observatory Chinese Academy of SciencesNanjing 210008China

Solar wind charge exchange(SWCX)is the process of solar wind high-valence ions exchanging charges with neutral components and generating soft ***,detecting the SWCX emission from the magnetosphere is proposed as a new technique to study the magnetosphere using panoramic soft X-ray *** better prepare for the data analysis of upcoming magnetospheric soft X-ray imaging missions,this paper compares the magnetospheric SWCX emission obtained by two methods in an XMM-Newton observation,during which the solar wind changed *** two methods differ in the data used to fit the diffuse X-ray background(DXB)parameters in spectral *** method adding data from the ROSAT All-Sky Survey(RASS)is called the RASS *** method using the quiet observation data is called the Quiet method,where quiet observations usually refer to observations made by the same satellite with the same target but under weaker solar wind *** show that the spectral compositions of magnetospheric SWCX emission obtained by the two methods are very similar,and the changes in intensity over time are highly consistent,although the intensity obtained by the RASS method is about 2.68±0.56 keV cm^(-2)s^(-1)sr^(-1)higher than that obtained by the Quiet *** the DXB intensity obtained by the RASS method is about 2.84±0.74 keV cm^(-2)s^(-1)sr^(-1)lower than that obtained by the Quiet method,and the linear correlation coefficient between the difference of SWCX and DXB obtained by the two methods in diffe rent energy band is close to-1,the diffe rences in magnetospheric SWCX can be fully attributed to the diffe rences in the fitted *** difference between the two methods is most significant when the energy is less than 0.7 keV,which is also the main energy band of SWCX *** addition,the difference between the two methods is not related to the SWCX intensity and,to some extent,to solar wind conditions,because SWCX intensity typically va ries with the

关键词： solar wind charge exchange(SWCX) ROSAT All-Sky Survey(RASS) soft X-ray X-ray imaging magnetosphere

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Scientific objectives of the Hot Universe Baryon Surveyor(HUBS) mission

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中国科学:物理学、力学、天文学英文版 2023年第9期66卷 134-178页

作者： Joel Bregman Renyue Cen Yang Chen Wei Cui Taotao Fang Fulai Guo Edmund Hodges-Kluck Rui Huang Luis C.Ho Li Ji Suoqing Ji Xi Kang Xiaoyu Lai Hui Li Jiangtao Li Miao Li Xiangdong Li Yuan Li Zhaosheng Li Guiyun Liang Helei Liu Wenhao Liu Fangjun Lu Junjie Mao Gabriele Ponti Zhijie Qu Chenxi Shan Lijing Shao Fangzheng Shi Xinwen Shu Lei Sun Mouyuan Sun Hao Tong Junfeng Wang Junxian Wang Q.Daniel Wang Song Wang Tinggui Wang Weiyang Wang Zhongxiang Wang Dandan Xu Haiguang Xu Heng Xu Renxin Xu Xiaojie Xu Yongquan Xue Hang Yang Feng Yuan shuinai zhang Yuning zhang Zhongli zhang Yuanyuan Zhao Enping Zhou Ping Zhou Department of Astronomy University of MichiganAnn Arbor MI 48109-1107USA Institute for Astronomy School of PhysicsZhejiang UniversityHangzhou 310027China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Key Laboratory of Modern Astronomy and Astrophysics Nanjing UniversityNanjing 210023China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Astronomy Xiamen UniversityXiamen 361005China Astrophysics Division Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China NASA Goddard Space Flight Center Greenbelt MD 20771USA Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China Department of Physics and Astronomy Hubei University of EducationWuhan 430205China Department of Physics University of North TexasDenton TX 76203USA Key Laboratory of Stars and Interstellar Medium Xiangtan UniversityXiangtan 411105China CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Physical Science and Technology Xinjiang UniversityUrumuqi 830046China Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China INAF-Osservatorio Astronomico di Brera Merate(LC)I-23807Italy Department of Astronomy&Astrophysics the University of ChicagoChicago IL 60637USA School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics Anhui Normal UniversityWuhu 241002China School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China Department of Astronomy University of Science and Technology of ChinaHefei 230026China Depart

The Hot Universe Baryon Surveyor(HUBS) is a proposed space-based X-ray telescope for detecting X-ray emissions from the hot gas content in our universe. With its unprecedented spatially-resolved high-resolution spectroscopy and large field of view,the HUBS mission will be uniquely qualified to measure the physical and chemical properties of the hot gas in the interstellar medium, the circumgalactic medium, the intergalactic medium, and the intracluster medium. These measurements will be valuable for two key scientific goals of HUBS, namely to unravel the AGN and stellar feedback physics that governs the formation and evolution of galaxies, and to probe the baryon budget and multi-phase states from galactic to cosmological scales. In addition to these two goals, the HUBS mission will also help us solve some problems in the fields of galaxy clusters, AGNs, difuse X-ray backgrounds, supernova remnants, and compact objects. This paper discusses the perspective of advancing these fields using the HUBS telescope.

关键词： X-ray telescopes Galactic halo X-ray sources

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应用荧光抗体技术检测猪细小病毒抗原

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上海农业学报 1988年第4期 1-8页

作者：叶向阳粟寿初潘雪珠杨水奶张婉华唐骐骏余晨严仲烈曹伟民上海市农业科学院畜牧兽医研究所上海市农业科学院畜牧兽医研究所上海

为了诊断猪细小病毒(PPV)引起的母猪繁殖障碍,我们利用提纯的病毒作抗原免疫兔生产高免血清,然后提取IgG与FITC结合制备了荧光抗体(FA)。用这种FA检测PPV感染的ST细胞培养物和人工感染母猪子宫内胎儿的组织切片,可检出特异性核内荧光。... 详细信息

为了诊断猪细小病毒(PPV)引起的母猪繁殖障碍,我们利用提纯的病毒作抗原免疫兔生产高免血清,然后提取IgG与FITC结合制备了荧光抗体(FA)。用这种FA检测PPV感染的ST细胞培养物和人工感染母猪子宫内胎儿的组织切片,可检出特异性核内荧光。用已知PPV阳性血清做阻断试验进一步证明了反应的特异性。检测PPV感染的细胞培养物中的病毒抗原时,FA的敏感性比HA大100倍,检出时间也短得多。在自然发生母猪繁殖障碍的5个猪场送检的9份病料中,有4个场的6份病料检出了PPV抗原。

关键词：荧光抗体技术猪细小病毒

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猪细小病毒灭活疫苗的田间免疫试验

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上海农业学报 1988年第2期 1-6页

作者：潘雪珠粟寿初严仲烈张婉华唐骐骏叶向阳杨水奶余晨曹伟民姜培良上海市农业科学院畜牧兽医研究所上海市嘉定县种畜场上海上海嘉定

1984—1986年间,在上海郊区和江浙地区19个猪场用17批AEI灭活疫苗进行了40次田间免疫试验,共免疫2000头猪。对其中20次试验的520头免疫猪在免疫前、后测定HI抗体,除免疫前HI价4096的猪外,免疫后HI价上升的占89.1％。田间免疫试验抽样效... 详细信息

1984—1986年间,在上海郊区和江浙地区19个猪场用17批AEI灭活疫苗进行了40次田间免疫试验,共免疫2000头猪。对其中20次试验的520头免疫猪在免疫前、后测定HI抗体,除免疫前HI价4096的猪外,免疫后HI价上升的占89.1％。田间免疫试验抽样效检猪的抗体反应和效检结果相一致,免疫率平均为95.1％。产仔成绩:免疫猪比对照猪平均每窝多产活仔2.1头、平均每窝少产死胎、木乃伊胎儿0.7头。

关键词：猪细小病毒猪细小病毒灭活疫苗田间免疫试验

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