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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2409.16059 |
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| _version_ | 1866913519126970368 |
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| author | Yan, Zhen Shen, Zhiqiang Jiang, Peng Zhang, Bo Zhang, Haiyan Cui, Lang Luo, Jintao Chen, Rurong Jiang, Wu Zhang, Hua Wu, De Zhao, Rongbing Yuan, Jianping Hu, Yue Wu, Yajun Xia, Bo Li, Guanghui Rao, Yongnan Chen, Chenyu Wang, Xiaowei Ding, Hao Liu, Yongpeng Zhang, Fuchen Jiang, Yongbin |
| author_facet | Yan, Zhen Shen, Zhiqiang Jiang, Peng Zhang, Bo Zhang, Haiyan Cui, Lang Luo, Jintao Chen, Rurong Jiang, Wu Zhang, Hua Wu, De Zhao, Rongbing Yuan, Jianping Hu, Yue Wu, Yajun Xia, Bo Li, Guanghui Rao, Yongnan Chen, Chenyu Wang, Xiaowei Ding, Hao Liu, Yongpeng Zhang, Fuchen Jiang, Yongbin |
| contents | The importance of Very Long Baseline Interferometry (VLBI) for pulsar research is becoming increasingly prominent and receiving more and more attention. In this paper, we present pathfinding pulsar observation results with the Chinese VLBI Network (CVN) incorporating the Five-hundred-meter Aperture Spherical radio Telescope (FAST). On MJD 60045 (April 11th, 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 that with previous timing observations, as pulsar astrometry with the VLBI provides a more direct and model-independent method for accurately obtaining related parameters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_16059 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Pathfinding pulsar observations with the CVN incorporating the FAST Yan, Zhen Shen, Zhiqiang Jiang, Peng Zhang, Bo Zhang, Haiyan Cui, Lang Luo, Jintao Chen, Rurong Jiang, Wu Zhang, Hua Wu, De Zhao, Rongbing Yuan, Jianping Hu, Yue Wu, Yajun Xia, Bo Li, Guanghui Rao, Yongnan Chen, Chenyu Wang, Xiaowei Ding, Hao Liu, Yongpeng Zhang, Fuchen Jiang, Yongbin High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics The importance of Very Long Baseline Interferometry (VLBI) for pulsar research is becoming increasingly prominent and receiving more and more attention. In this paper, we present pathfinding pulsar observation results with the Chinese VLBI Network (CVN) incorporating the Five-hundred-meter Aperture Spherical radio Telescope (FAST). On MJD 60045 (April 11th, 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 that with previous timing observations, as pulsar astrometry with the VLBI provides a more direct and model-independent method for accurately obtaining related parameters. |
| title | Pathfinding pulsar observations with the CVN incorporating the FAST |
| topic | High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2409.16059 |