The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio Telescope
We report the observations of periodic nulling in PSR B2111+46 at 1250 MHz with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The nulling fractions (NF) as well as nulling period of this pulsar were calculated. The NF and nulling period are 17% ± 1% and 62.49 ± 0.99 P _1 , respec...
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| Format: | Article |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ace362 |
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| author | Q. J. Zhi J. T. Bai L. H. Shang X. Xu S. J. Dang D. Li L. Zhang P. Wang X. Y. Xie R. S. Zhao A. J. Dong G. J. Qiao |
| author_facet | Q. J. Zhi J. T. Bai L. H. Shang X. Xu S. J. Dang D. Li L. Zhang P. Wang X. Y. Xie R. S. Zhao A. J. Dong G. J. Qiao |
| author_sort | Q. J. Zhi |
| collection | DOAJ |
| description | We report the observations of periodic nulling in PSR B2111+46 at 1250 MHz with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The nulling fractions (NF) as well as nulling period of this pulsar were calculated. The NF and nulling period are 17% ± 1% and 62.49 ± 0.99 P _1 , respectively, and the periodic nulling shows variations in periodicity with time. The durations of each consecutive burst and nulling were investigated, which show that the power-law distribution and the indices are −1.11 ± 0.04 and −2.08 ± 0.23. In the observed frequency band, the width of the profile is narrowed with the increase in frequency, and the degree of polarization has no obvious trend with the increase in frequency. We discovered a weak emission component in front of the leading component of this triple-type profile pulsar that was not observed in other bands and by other telescopes. With the fitting of rotation vector model, we obtained that the angles of the magnetic inclination α and the line of sight ζ are ∼13.°0 and ∼11.°6, respectively. The high-sensitivity observation of FAST improves our understanding of the emission of this pulsar. |
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| format | Article |
| id | doaj.art-6a1303664b6e477091c6533bcc50a998 |
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| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T02:55:09Z |
| publishDate | 2023-01-01 |
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| series | The Astrophysical Journal |
| spelling | doaj.art-6a1303664b6e477091c6533bcc50a9982023-09-03T15:22:39ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195412410.3847/1538-4357/ace362The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio TelescopeQ. J. Zhi0https://orcid.org/0000-0001-9389-5197J. T. Bai1L. H. Shang2X. Xu3S. J. Dang4D. Li5https://orcid.org/0000-0003-3010-7661L. Zhang6https://orcid.org/0000-0001-8539-4237P. Wang7https://orcid.org/0000-0002-3386-7159X. Y. Xie8R. S. Zhao9A. J. Dong10https://orcid.org/0000-0003-4151-0771G. J. Qiao11School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, People’s Republic of China ; qjzhi@gznu.edu.cn; Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaGuizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of China; Xinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of the People’s Republic of China; School of Astronomy and Space Sciences, Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaSchool of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, People’s Republic of China ; qjzhi@gznu.edu.cn; Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaGuizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of China; School of Mathematical Sciences, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaSchool of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, People’s Republic of China ; qjzhi@gznu.edu.cn; Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaNational Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of China; NAOC-UKZN Computational Astrophysics Centre, University of KwaZulu-Natal , Durban 4000, South AfricaNational Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People’s Republic of ChinaNational Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People’s Republic of ChinaKey Laboratory of Information and Computer Science of Guizhou Province, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaSchool of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, People’s Republic of China ; qjzhi@gznu.edu.cn; Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaSchool of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, People’s Republic of China ; qjzhi@gznu.edu.cn; Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaSchool of Physics, Peking University , Beijing 100871, People’s Republic of ChinaWe report the observations of periodic nulling in PSR B2111+46 at 1250 MHz with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The nulling fractions (NF) as well as nulling period of this pulsar were calculated. The NF and nulling period are 17% ± 1% and 62.49 ± 0.99 P _1 , respectively, and the periodic nulling shows variations in periodicity with time. The durations of each consecutive burst and nulling were investigated, which show that the power-law distribution and the indices are −1.11 ± 0.04 and −2.08 ± 0.23. In the observed frequency band, the width of the profile is narrowed with the increase in frequency, and the degree of polarization has no obvious trend with the increase in frequency. We discovered a weak emission component in front of the leading component of this triple-type profile pulsar that was not observed in other bands and by other telescopes. With the fitting of rotation vector model, we obtained that the angles of the magnetic inclination α and the line of sight ζ are ∼13.°0 and ∼11.°6, respectively. The high-sensitivity observation of FAST improves our understanding of the emission of this pulsar.https://doi.org/10.3847/1538-4357/ace362Radio pulsars |
| spellingShingle | Q. J. Zhi J. T. Bai L. H. Shang X. Xu S. J. Dang D. Li L. Zhang P. Wang X. Y. Xie R. S. Zhao A. J. Dong G. J. Qiao The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio Telescope The Astrophysical Journal Radio pulsars |
| title | The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio Telescope |
| title_full | The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio Telescope |
| title_fullStr | The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio Telescope |
| title_full_unstemmed | The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio Telescope |
| title_short | The Single-pulse Observation of PSR B2111+46 with the Five-hundred-meter Aperture Spherical Radio Telescope |
| title_sort | single pulse observation of psr b2111 46 with the five hundred meter aperture spherical radio telescope |
| topic | Radio pulsars |
| url | https://doi.org/10.3847/1538-4357/ace362 |
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