Pathfinding Pulsar Observations with the CVN Incorporating the FAST  

作　　者：Zhen Yan Zhiqiang Shen Peng Jiang Bo Zhang Haiyan Zhang Lang Cui Jintao Luo Rurong Chen Wu Jiang Hua Zhang De Wu Rongbing Zhao Jianping Yuan Yue Hu Yajun Wu Bo Xia Guanghui Li Yongnan Rao Chenyu Chen Xiaowei Wang Hao Ding Yongpeng Liu Fuchen Zhang Yongbin Jiang 闫振;沈志强;姜鹏;张波;张海燕;崔朗;罗近涛;陈如荣;江悟;张华;吴徳;赵融冰;袁建平;胡悦;吴亚军;夏博;李光辉;饶永南;陈晨雨;王啸威;丁浩;刘永朋;张馥臣;蒋甬斌(Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China;National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China;National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China [2]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [3]Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China [4]National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China [5]School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics Letters》2024年第11期170-176,共7页中国物理快报（英文版）

基　　金：supported by the National SKA Program of China(Grant Nos.2020SKA0120104 and 2020SKA0120200);the National Key R&D Program of China(Grant No.2022YFA1603104);the National Natural Science Foundation of China(Grant No.12041301)。

摘　　要：The importance of Very Long Baseline Interferometry(VLBI)for pulsar research is becoming increasingly prominent and receiving more and more attention.We present the pathfinding pulsar observation results with the Chinese VLBI Network(CVN)incorporating the Five-hundred-meter Aperture Spherical radio Telescope(FAST).On MJD 60045(11th April 2023),PSRs B0919+06 and B1133+16 were observed with the phase-referencing mode in the L-band using four radio telescopes(FAST,TianMa,Haoping,and Nanshan)and correlated with the pulsar binning mode of the distributed FX-style software correlator in Shanghai.After further data processing with the NRAO Astronomical Image Processing System(AIPS),we detected these two pulsars and fitted their current positions with accuracy at the milliarcsecond level.By comparison,our results show significantly better agreement with predicted values based on historical VLBI observations than those with previous timing observations,as pulsar astrometry with the VLBI provides a more direct and model-independent method for accurately obtaining related parameters.

关 键 词：VLBI finding OBSERVATION 

分 类 号：P145.6[天文地球—天体物理]