The FAST Galactic Plane Pulsar Snapshot survey:*** design and pulsar discoveries

作     者：J.L.Han Chen Wang P.F.Wang Tao Wang D.J.Zhou Jing-Hai Sun Yi Yan Wei-Qi Su Wei-Cong Jing Xue Chen X.Y.Gao Li-Gang Hou Jun Xu K.J.Lee Na Wang Peng Jiang Ren-Xin Xu Jun Yan Heng-Qian Gan Xin Guan Wen-Jun Huang Jin-Chen Jiang Hui Li Yun-Peng Men Chun Sun Bo-Jun Wang H.G.Wang Shuang-Qiang Wang Jin-Tao Xie Heng Xu Rui Yao Xiao-Peng You D.J.Yu Jian-Ping Yuan Rai Yuen Chun-Feng Zhang Yan Zhu 

作者机构：National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China CAS Key Laboratory of FASTNAOCChinese Academy of SciencesBeijing 100101China School of AstronomyUniversity of Chinese Academy of SciencesBeijing 100049China Kavli Institute for Astronomy and AstrophysicsPeking UniversityBeijing 100871China Department of AstronomyPeking UniversityBeijing 100871China Xinjiang Astronomical ObservatoryChinese Academy of SciencesUrumqi 830011China Key Laboratory of Radio AstronomyChinese Academy of SciencesNanjing 210008China Department of AstronomyGuangzhou UniversityGuangzhou 510006China School of Physical Science and TechnologySouthwest UniversityChongqing 400715China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2021年第21卷第5期

页      面：5-42页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：This project,as one of five key projects,is being carried out by using FAST,a Chinese national mega-science facility built and operated by the National Astronomical Observatories,Chinese Academy of Sciences.J.L.Han is supported by the National Natural Science Foundation of China(NSFC,Nos.11988101 and 11833009) the Key Research Program of the Chinese Academy of Sciences(Grant No.QYZDJ-SSW-SLH021) C.Wang is partially supported by NSFC No.U1731120 X.Y.Gao is partially supported by NSFC No.U1831103 P.F.Wang is partially supported by the NSFC No.11873058 and the National SKA program of China No.2020SKA0120200.Jun Xu is partially supported by NSFC No.U2031115 H.G.Wang is partially supported by the National SKA program of China(No.2020SKA0120100) R.Yuen is partly supported by Xiaofeng Yang's Xinjiang Tianchi Bairen project and CAS Pioneer Hundred Talents Program.L.G.Hou thanks the support from the Youth Innovation Promotion Association CAS 

主　　题：pulsars:general 

摘      要：Discovery of pulsars is one of the main goals for large radio *** Five-hundredmeter Aperture Spherical radio Telescope(FAST),that incorporates an L-band 19-beam receiver with a system temperature of about 20 K,is the most sensitive radio telescope utilized for discovering *** designed the snapshot observation mode for a FAST key science project,the Galactic Plane Pulsar Snapshot(GPPS)survey,in which every four nearby pointings can observe a cover of a sky patch of 0.1575 square degrees through beam-switching of the L-band 19-beam *** integration time for each pointing is 300 seconds so that the GPPS observations for a cover can be made in 21 *** goal of the GPPS survey is to discover pulsars within the Galactic latitude of±10∘from the Galactic plane,and the highest priority is given to the inner Galaxy within±5∘.Up to now,the GPPS survey has discovered 201 pulsars,including currently the faintest pulsars which cannot be detected by other telescopes,pulsars with extremely high dispersion measures(DMs)which challenge the currently widely used models for the Galactic electron density distribution,pulsars coincident with supernova remnants,40 millisecond pulsars,16 binary pulsars,some nulling and mode-changing pulsars and rotating radio transients(RRATs).The follow-up observations for confirmation of new pulsars have polarization-signals recorded for polarization profiles of the ***-detection of previously known pulsars in the survey data also leads to significant improvements in parameters for 64 *** GPPS survey discoveries are published and will be updated at http://***/GPPS/.