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A 95 GHz methanol emission survey toward eight small supernova remnants

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Research in Astronomy and Astrophysics 2017年第12期17卷 65-76页

作者： Ying-Jie li ye xu xi chen Deng-Rong Lu Yan Sun xin-Yu Du Zhi-Qiang shen Purple Mountain observatory Chinese Academy of SciencesNanjing 210008China University of Science and Technology of china Chinese Academy of SciencesHefei 230026China Center for Astrophysics Guangzhou UniversityGuangzhou 51006China shanghai astronomical {2. Chinese Academy of SciencesShanghai 200030China University of the chinese academy of sciences Beijing 100049China

We report on a 95 GHz（80-71A＋） methanol（CH3OH） emission survey with the Purple Mountain observatory Delingha 13.7 m telescope. Eight supernova remnants（SNRs） with angular size〈10′ were observed, but emission was only detected in three SNRs near the Galactic center（Sgr A East,G 0.1–0.1 and G 359.92.0.09）. CH3OH emission mainly surrounds the SNRs and can be decomposed into nine spatial peaks with the velocity range of eight peaks being（-30, 70） km s-1, and the other is（70, 12.） km s-1. They are probably excited by interaction with these SNRs and adjacent molecular gas in the central molecular zone（CMZ）, although star formation may play an important role in exciting CH3OH emission in some regions of CMZ. We infer that tidal action is unlikely to be an excitation source for CH3OH emission.

关键词： ISM:molecules ISM:supernova remnants Galaxy:center ISM:kinematics and dynamics ISM:clouds

Einstein Probe discovery of EP2.0408a:A peculiar X-ray transient with an intermediate timescale

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Science china(Physics,Mechanics & Astronomy) 2024年

作者： Wenda Zhang Weimin Yuan Zhixing ling Yong chen Nanda Rea Arne Rau Zhiming Cai Huaqing cheng Francesco Coti Zelati lixin Dai Jingwei Hu Shumei Jia Chichuan Jin Dongyue li Paul O’Brien Rongfeng shen xinwen Shu shengli Sun xiaojin Sun xiaofeng Wang Lei Yang Bing Zhang chen Zhang Shuang-Nan Zhang Yonghe Zhang Jie An David Buckley Alexis Coleiro Bertrand Cordier liming Dou Rob Eyles-Ferris Zhou Fan Hua Feng Shaoyu Fu Johan P. U. Fynbo Lluis Galbany Saurabh W. Jha Shuaiqing Jiang Albert Kong Erik Kuulkers Weihua Lei Wenxiong li Bifang liu Mingjun liu xing liu Yuan liu Zhu liu Chandreyee Maitra Alessio Marino Itumeleng Monageng Kirpal Nandra Jeremy Sanders Roberto Soria lian Tao Junfeng Wang Song Wang Tinggui Wang Zhongxiang Wang Qingwen Wu xuefeng Wu Dong xu Yanjun xu Suijian xue Yongquan xue Zijian Zhang Zipei Zhu Hu Zou Congying Bao Fansheng chen Houlei chen Tianxiang chen Wei chen yehai chen Yifan chen chenzhou Cui Weiwei Cui Yanfeng Dai Dongwei Fan Ju Guan Dawei Han Dongjie Hou Haibo Hu Maohai Huang Jia Huo Zhenqing Jia Bowen Jiang Ge Jin chengkui li Junfei li Longhui li Maoshun li Wei li Zhengda li Tianying lian Congzhan liu Heyang liu Huaqiu liu Fangjun Lu Laidan Luo Jia Ma xuan Mao Haiwu Pan xin Pan liming Song Hui Sun Yunyin Tan Qingjun Tang Yihan Tao Hao Wang Juan Wang Lei Wang Wenxin Wang Yilong Wang Yusa Wang Qinyu Wu Haitao xu jingjing xu xinpeng xu Yunfei xu Zhao xu Changbin xue Yulong xue Ailiang Yan Haonan Yang xiongtao Yang Yanji Yang Juan Zhang Mo Zhang Wenjie Zhang Zhen Zhang Zhen Zhang Ziliang Zhang Donghua Zhao Haisheng Zhao xiaofan Zhao Zijian Zhao Hongyan Zhou Yilin Zhou Yuxuan Zhu Zhencai Zhu Institut d’Estudis Espacials de Catalunya (IEEC) Max Planck Institute for Extraterrestrial Physics Innovation academy for Microsatellites chinese academy of {2. Department of Physics University of Hong Kong School of Physics and Astronomy University of Leicester School of Physics and Astronomy Sun Yat-sen University National astronomical Observatories Department of Physics Anhui Normal University shanghai Institute of Technical Physics chinese academy of {2. Physics Department Tsinghua University Nevada Center for Astrophysics University of Nevada Las Vegas Department of Physics and Astronomy University of Nevada Las Vegas chinese academy of {2. South African astronomical observatory Department of Astronomy University of Cape Town Department of Physics University of the Free State Universite' Paris Cite' CNRS Astroparticule et Cosmologie Universite' Paris Cite' CEA Paris-Saclay School of Astronomy and Space sciences IRFU/DAp-AIM Department of Astronomy Guangzhou University Cosmic Dawn Center (DAWN) Niels Bohr Institute University of Copenhagen Department of Physics and Astronomy Rutgers the State University of New Jersey Institute for Cosmic Ray Research University of chinese academy of sciences The University of Tokyo ESA/ESTEC Noordwijk 2.0}AZ The Netherlands Department of Astronomy School of Physics Huazhong University of Science and Technology INAF-Osservatorio Astrofisico di Torino Sydney Institute for Astronomy School of Physics Key Laboratory of Particle Astrophysics The University of Sydney Department of Astronomy xiamen University Institute for Frontiers in Astronomy and Astrophysics Beijing Normal University Department of Astronomy University of Science and Technology Hefei School of Astronomy and Space sciences University of Science and Technology of china Institute of High Energy Physics Institute of Deep Space sciences Deep Space Exploration Laboratory Department of Astronomy School of Physics and Astronomy Yunnan University shanghai astronomical {2. chinese academy of Science

We report the discovery of a peculiar X-ray transient,EP2.0408a,by Einstein Probe （EP） and follow-up studies made with EP,Swift,NICER,GROND,ATCA and other ground-based multiwavelength *** new transient was first detected with Wide-field X-ray Telescope （WXT） on board EP on April 8th,2.2.,manifested in an intense yet brief X-ray flare lasting for *** flare reached a peak flux of 3.9×10-9erg cm-2.-1in 0.5-4 keV,300 times brighter than the underlying X-ray emission detected throughout the *** and more precise follow-up observations by EP/FXT,Swift and NICER confirmed the finding of this new *** X-ray spectrum is non-thermal in 0.5-10 keV,with a power-law photon index varying *** X-ray light curve shows a plateau lasting for4d,followed by a steep decay till becoming undetectable10 d after the initial *** on its temporal property and constraints from previous EP observations,an unusual timescale in the range of 7-2. d is found for EP2.0408a,which is intermediate between the commonly found fast and long-term *** counterparts have been found in optical and near-infrared,with the earliest observation at 17 h after the initial X-ray detection,suggestive of intrinsically weak emission in these *** demonstrate that the remarkable properties of EP2.0408a are inconsistent with any of the transient types known so far,by comparison with,in particular,jetted tidal disruption events,gamma-ray bursts,X-ray binaries and fast blue optical *** nature of EP2.0408a thus remains an *** suggest that EP2.0408a may represent a new type of transients with intermediate timescales of the order of10 *** detection and follow-ups of more of such objects are essential for revealing their origin.

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Data processing and data products from 2.1. to 2.1. campaign of {2. site testing at Ali,Daocheng and Muztagh-ata

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Research in Astronomy and Astrophysics 2020年第6期20卷 109-130页

作者： Zi-Huang Cao Jin-xin Hao Lu Feng Hugh RAJones Jian li Jing xu li-Yong liu Teng-Fei Song Jian-Feng Wang Hua-lin chen Yan-Jie xue Huang {2. Yong-Heng Zhao Zhao-xiang Qi Jian-Rong Shi Yuan Tian Zheng Wang xia Wang Jin-liang Hou Jin-Ming Bai Ji Yang xu Zhou Yong-Qiang Yao Jia Yin Ali Esamdin Guang-xin Pu Peng Wei Chun-Hai Bai Guo-Jie Feng Lu Ma xuan Zhang Yu liu Chong Pei Zhi-xia {2. Yun-Ying Jiang Jian-Feng Tian xian-Qun Zeng Zhi-Gang Hou xu Yang Jun-Bo Zhang Shi-Long liao Dong-Wei Fan Yun-Fei xu Jian-Ping xiong Tai-{2.g Yan xi Zhang Chang-Hua li Yi-Han Tao Si-cheng Yu Zhi-Song Cao Hong-Shuai Wang National astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of chinese academy of sciences Beijing 100049China shanghai astronomical {2. Chinese Academy of SciencesShanghai 200030China Centre for Astrophysics University of HertfordshireHatfieldUK School of Journalism Communication University of ChinaBeijing 100024China Nanjing Institute of astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China xinjiang astronomical {2. Chinese Academy of SciencesUrumqi 830011China Yunnan Observatories Chinese Academy of SciencesKunming 650216China Purple Mountain observatory Chinese Academy of SciencesNanjing 210033China Beijing Kaiyang Space Technology Co. LtdBeijing 100085China

Based on previous site testing and satellite cloud data,Ali,Daocheng and Muztagh-ata have been selected as candidate sites for the Large Optical/Infrared Telescope(LOT) in *** present the data collection,processing,management and quality analysis for our site testing based on using similar *** analyze meteorological data,seeing,background light,cloud and precipitable water vapor data from 2.1. March 10 to 2.1. March *** also investigated the relative usefulness of our all-sky camera data in comparison to that from the meteorological TERRA satellite data based on a night-by-night comparison of the correlation and consistency between *** find a 6% discrepancy arising from a wide range of factors.

关键词： LOT Site-selection-data processing

搜寻第二个地球——系外地球(ET)巡天计划

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空间科学学报 2024年第3期44卷 400-424页

作者：葛健陈雯陈永和宋宗玺王坚张辉李岩臧伟呈周丹张永帅陈琨阳应权毛淑德黄煦药新雨李兴隆姜海娇于涌唐正宏董峰高伟张鸿飞申超王峰涛魏传新杨宝玉李豫东文林张朋军张聪聪谢基伟马波邓洪平刘慧根段旭亮王昊宇黄江江高扬王伊菲王磊秦根健刘欣宇高婕中国科学院上海天文台上海200030 中国科学院微小卫星创新研究院上海201304 中国科学院上海技术物理研究所上海200083 中国科学院西安光学精密机械研究所西安710119 中国科学技术大学合肥230026 清华大学天文系北京100190 南昆士兰大学天体物理中心图文巴QLD4350 中国航天科技集团公司第八研究院803研究所上海201109 中国科学院新疆理化技术研究所乌鲁木齐830011 南京大学天文系南京210023 中山大学物理与天文学院珠海519082

系外地球科学卫星(ET)将通过采用空间大视场超高精度测光这一关键技术在国际上率先突破生命起源中的系外地球存在及其演化这一重大前沿科学问题. ET卫星将在日地拉格朗日L2.晕(Halo)轨道部署由6台广角凌星望远镜和1台微引力透镜望远镜... 详细信息

系外地球科学卫星(ET)将通过采用空间大视场超高精度测光这一关键技术在国际上率先突破生命起源中的系外地球存在及其演化这一重大前沿科学问题. ET卫星将在日地拉格朗日L2.晕(Halo)轨道部署由6台广角凌星望远镜和1台微引力透镜望远镜构成的空间天文台,结合凌星法和微引力透镜法,利用空间超大视场和超高精度的光学测光观测,首次发现富有重要意义、被广泛关注的系外地球,并确定其发生率,对目前了解甚少的类地行星和流浪行星进行国际上第一次大规模的种群普查,首次发现流浪地球,并确定其发生率,揭示类地行星和流浪行星起源,为地外生命探寻提供候选者和新方向. ET卫星的观测结果、统计研究以及和对理论的检验将回答系外地球在宇宙中有多普遍,类地行星是如何形成和演化的,流浪行星又是如何起源的这些亟待解决的前沿科学问题.对ET卫星发现的系外地球样本的后随观测,将精确测量其质量、密度和大气成分,有助于深入分析宜居性特征.此外,对ET新发现的大量各种系外行星样本的研究,以及对理论的检验将推动这些种类的行星形成和演化规律的更深入认识, ET的大量高精度、高频次和长基线测光数据将推动星震学、银河系考古学、时域天文学、双星和双星黑洞等领域的研究.

关键词：系外行星类地行星宜居带凌星微引力透镜测光

Design,Fabrication and Assembly of the Solar Upper Transition Region Imager(SUTRI)

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天文和天体物理学研究:英文版 2023年第9期23卷 91-104页

作者： Zhanshan Wang Jun Yu Runze Qi Chunling He Zhengxiang shen li Jiang Wei{2. Gu Jiali Wu Zhe Zhang Pengfeng sheng Yifan Wang Yue Yu Zeyi ye jingjing xia Yujie xing Hongfei Jiao Bin Ma Qiushi Huang Zhong Zhang xianyong Bai Yuanyong Deng Hui Tian Nange Wang Lun shen Song Guo Lei Jing xiaobo {2. Yang Gao xiao{2.g Zhu xiaofeng Zhang Junwang He Qi Shi Shuo liu xingzi Bi Key Laboratory of Advanced Micro-structured Materials Ministry of EducationTongji UniversityShanghai 200092China Institute of Precision Optical Engineering School of Physics Science and EngineeringTongji UniversityShanghai 200092China National astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Earth and Space sciences Peking UniversityBeijing 100871China xi’an Institute of Optics and Fine Mechanics Chinese Academy of SciencesXi’an 710119China Micro-satellite Innovation Institute Chinese Academy of SciencesShanghai 200052China

The Solar Upper Transition Region Imager(SUTRI)focuses on the solar transition region to achieve dynamic imaging observation of the upper transition *** this paper,we report the optical system design,mechanical design,ultrasmooth mirror manufacture and measurement,EUV multilayer film coating,prelaunch installation and calibration for the SUTRI payload at IPOE,Tongji ***,the SUTRI carried by the SATech-01 satellite was successfully set to *** functions of this telescope were normal,and the observation results obtained in orbit were consistent with the design.

关键词： astronomical Instrumentation-Methods and Techniques-Sun transition region-techniques high angular resolution

The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite

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Research in Astronomy and Astrophysics 2023年第6期23卷 153-171页

作者： xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang shen Lun shen Song Guo Zhenyong Hou Kaifan Ji xingzi Bi Wei Duan xiao Yang Jiaben lin Ziyao Hu Qian Song Zihao Yang Yajie chen Weidong Qiao Wei Ge Fu li Lei Jin Jiawei He xiaobo chen xiaocheng Zhu Junwang He Qi Shi liu liu Jinsong li Dongxiao xu Rui liu Taijie li Zhenggong Feng Yamin Wang chengcheng Fan Shuo liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu li Qi Yang Yuyang ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi ye Pengfeng sheng Yifan Wang Wenbin li Qiushi Huang Zhong Zhang National astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 101408China School of Earth and Space sciences Peking UniversityBeijing 100871China Key Laboratory of Solar Activity and Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China Tongji University Institute of Precision Optical EngineeringSchool of Physics Science and EngineeringKey Laboratory of Advanced Micro-Structured Materials MOEShanghaiChina xi'an Institute of Optics and Precision Mechanics Chinese Academy of SciencesXi'an 710119China Innovation academy for Microsatellites Chinese Academy of SciencesShanghai 201304China Yunnan Observatories Chinese Academy of SciencesKunming650011China

The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2.2. July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2.×2. EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 *** employs a Ritchey-Chrétien optical system with an aperture of 18 *** on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization *** normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit ***15 GB data is acquired each day and made available online after *** images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar *** observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections.

关键词： Sun:transition region Sun:UV radiation Sun:activity space vehicles:instruments

Reciprocating Magnetic Fields in the Pulsar Wind Observed from the Black Widow Pulsar J172.-0534

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Research in Astronomy and Astrophysics 2023年第10期23卷 255-266页

作者： chen-chen Miao Victoria Blackmon Wei-Wei Zhu Dong-Zi li Ming-Yu Ge {2.ao-Peng You Maura McLaughlin Di li Na Wang Pei Wang Jia-Rui Niu M.Cruces Jian-Ping Yuan Jun-Tao Bai D.J.Champion Yu-Tong chen Ming-Min Chi P.C.C.Freire Yi Feng Zhen-ye Gan M.Kramer Fei-Fei Kou Yu-{2. li xue-li Miao ling-Qi Meng chen-Hui Niu sheng-Nan Sun Zhong-Yi Sun H.M.Tedila Shuang-Qiang Wang Qing-Dong Wu Jing-Bo Wang Zhi-Gang Wen shen Wang Ya-Biao Wang cheng-Jie Wang Meng-Yao xue You-ling Yue Mao Yuan Ju-Mei Yao Wen-Ming Yan Ru-Shuang Zhao Lei Zhang De Zhao National astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China West Virginia University 1500 University AveMorgantownWV 26506USA Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China Cahill Center for Astronomy and Astrophysics California Institute of Technology1216 E California BoulevardPasadenaCA 91125USA Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China School of Physical Science and Technology Southwest UniversityChongqing 400715China Research Center for Intelligent Computing Platforms Zhejiang LaboratoryHangzhou 311100China xinjiang astronomical {2. Chinese Academy of SciencesUrumqi 830011China Max-Planck Institut für Radioastronomie Auf dem Hügel 69D-53121 BonnGermany School of Computer Science Fudan UniversityShanghai 200433China Tencent Youtu Lab Shanghai 200233China College of Physical Science and Technology Central China Normal UniversityWuhan 430079China Institute of Optoelectronic Technology Lishui UniversityLishui 323000China Guizhou Normal University Guiyang 550001China

We report the radio observations of the eclipsing black widow pulsar J172.-0534, a 3.2. ms pulsar in orbit with a low mass companion of mass 0.02. to 0.034 M⊙. We obtain the phase-connected timing ephemeris and polarization profile of this millisecond pulsar(MSP) using the Five-hundred-meter Aperture Spherical radio Telescope(FAST), the Green Bank Telescope(GBT), and the Parkes Telescope. For the first time from such a system, an oscillatory polarization angle change was observed from a particular eclipse egress with partial depolarization, indicating 10-milliGauss-level reciprocating magnetic fields oscillating in a length scale of 5 ×10^(3)km(assuming an orbital inclination angle of 90°) outside the companion's magnetosphere. The dispersion measure variation observed during the ingresses and egresses shows the rapid raising of the electron density in the shock boundary between the companion's magnetosphere and the surrounding pulsar wind. We suggest that the observed oscillatory magnetic fields originate from the pulsar wind outside the companion's magnetosphere.

关键词： (stars:)pulsars:general (stars:)pulsars:individual(J172.-0534) (stars:)binaries:eclipsing

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上海地区临床分离念珠菌的耐药性监测

中国感染与化疗杂志 2019年第3期19卷 292-299页

作者：慎慧郭建张旻孔雯娜肖晶晶吴文娟刘云陈险峰谢潋滟汤荣董郭平李莉孙燕李敏徐阳飏张静华黄声雷奚卫蔡金凤陈祝俊李丽秦惠宏舒文曹文俊王爱敏卫颖珏黄卫春张雯雁赵虎袁轶群沈振华房华同济大学附属东方医院南院检验科上海200123 上海长海医院上海长征医院上海交通大学医学院附属瑞金医院上海交通大学附属第一人民医院上海东方肝胆外科医院复旦大学附属华山医院上海交通大学附属儿童医院上海市胸科医院同济大学附属第十人民医院复旦大学附属中山医院上海交通大学医学院附属仁济医院上海市公共卫生临床中心复旦大学附属肿瘤医院上海交通大学医学院附属瑞金医院北院复旦大学附属眼耳鼻喉科医院复旦大学附属儿科医院上海交通大学医学院附属上海儿童医学中心复旦大学附属华东医院复旦大学附属金山医院上海市浦东新区公利医院上海市浦东新区人民医院

目的了解上海地区临床分离念珠菌的菌株分布以及对常用抗真菌药物的敏感性和耐药性。方法对上海地区2.所医院临床分离念珠菌采用微量液基稀释法按统一方案进行抗真菌药物敏感性试验。按CLSI M60(2.1.年)判断结果。结果收集2.1.年8月1日-... 详细信息

目的了解上海地区临床分离念珠菌的菌株分布以及对常用抗真菌药物的敏感性和耐药性。方法对上海地区2.所医院临床分离念珠菌采用微量液基稀释法按统一方案进行抗真菌药物敏感性试验。按CLSI M60(2.1.年)判断结果。结果收集2.1.年8月1日-2.1.年4月30日上述医院临床分离念珠菌共354株,其中白念珠菌占41.81%(148/354),近平滑念珠菌占2..73%(84/354),热带念珠菌占15.54%(55/354),光滑念珠菌占9.32.(33/354),其他念珠菌占9.60%(34/354)。白念珠菌、近平滑念珠菌、光滑念珠菌耐药率与以往报道比较偏低或基本持平,无增长趋势,主要是对唑类抗真菌药物具有一定的耐药性。白念珠菌对氟康唑耐药率为1.45%、剂量依赖性敏感(SDD)率为4.35%,对伏立康唑耐药率和中介率均为2.1.%;近平滑念珠菌对氟康唑呈现1.2.%的SDD率,对伏立康唑呈现1.2.%的中介率;光滑念珠菌对氟康唑表现出6.06%的耐药率和93.94%的SDD率;热带念珠菌耐药率呈增长趋势,对氟康唑表现出41.82.的耐药率和12.73%的SDD率,对伏立康唑表现出40.00%的耐药率和12.73%的中介率。白念珠菌、近平滑念珠菌、热带念珠菌对棘白菌素类药物尚未出现耐药菌株,仅1株光滑念珠菌对卡泊芬净耐药。结论上海地区临床念珠菌的分离率及菌株分布与国内外报道基本一致,临床分离菌株对常用抗菌药物的耐药率基本稳定,热带念珠菌对唑类抗真菌药物的耐药率呈上升趋势,应该引起临床医师重视。同时应进一步加强医院感染防控措施,继续做好真菌耐药性监测工作。

关键词：真菌耐药性监测药物敏感性试验念珠菌侵袭性真菌感染