Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST
We report on radio observations of four magnetars SGR 0501+4516, Swift 1834.9–0846, 1E 1841–045, SGR 1900+14, and a magnetar-like pulsar PSR J1846–0258 with the Five-hundred-meter Aperture Spherical radio Telescope at 1250 MHz. Notably, PSR J1846–0258 was observed 1 month after its 2020 X-ray outbur...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ada3c4 |
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| author | Juntao Bai Na Wang Shi Dai Shuangqiang Wang Jianping Yuan Wenming Yan Lunhua Shang Xin Xu Shijun Dang Zhen Zhang |
| author_facet | Juntao Bai Na Wang Shi Dai Shuangqiang Wang Jianping Yuan Wenming Yan Lunhua Shang Xin Xu Shijun Dang Zhen Zhang |
| author_sort | Juntao Bai |
| collection | DOAJ |
| description | We report on radio observations of four magnetars SGR 0501+4516, Swift 1834.9–0846, 1E 1841–045, SGR 1900+14, and a magnetar-like pulsar PSR J1846–0258 with the Five-hundred-meter Aperture Spherical radio Telescope at 1250 MHz. Notably, PSR J1846–0258 was observed 1 month after its 2020 X-ray outburst. The data from these observations were searched for periodic emissions and single pulses. No radio emission was detected for any of our targets. After accounting for the effect of red noise, the nondetections yield stringent upper limits on the radio flux density, with S _1250 ≤ 16.9 μ Jy for the four magnetars and the magnetar-like pulsar, along with constraints on single-pulse flux densities. Our deep radio observations suggest that these magnetars and the magnetar-like pulsar are indeed radio-quiet sources or unfavorably beamed. The resulting flux upper limits, along with previous findings, are discussed, highlighting the significance of further radio observations of radio-quiet magnetars and the high-B magnetar-like pulsar. |
| format | Article |
| id | doaj-art-9d70b28cb03f46c2ab3b3100672ee87f |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-9d70b28cb03f46c2ab3b3100672ee87f2025-01-22T08:33:53ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01979212210.3847/1538-4357/ada3c4Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FASTJuntao Bai0https://orcid.org/0000-0002-1052-1120Na Wang1https://orcid.org/0000-0002-9786-8548Shi Dai2https://orcid.org/0000-0002-9618-2499Shuangqiang Wang3https://orcid.org/0000-0003-4498-6070Jianping Yuan4https://orcid.org/0000-0002-5381-6498Wenming Yan5https://orcid.org/0000-0002-7662-3875Lunhua Shang6https://orcid.org/0000-0002-9173-4573Xin Xu7https://orcid.org/0009-0006-3224-4319Shijun Dang8https://orcid.org/0000-0002-2060-5539Zhen Zhang9Xinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China ; na.wang@xao.ac.cn; School of Astronomy and Space Science, University of Chinese Academy of Sciences , Beijing, 100049, People’s Republic of ChinaXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China ; na.wang@xao.ac.cn; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People’s Republic of ChinaCSIRO Space and Astronomy , PO Box 76, Epping, NSW 1710, Australia; Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, AustraliaXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China ; na.wang@xao.ac.cn; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People’s Republic of ChinaXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China ; na.wang@xao.ac.cn; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People’s Republic of ChinaXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China ; na.wang@xao.ac.cn; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People’s Republic of ChinaSchool of Physics and Electronic Science, Guizhou Normal University , Guiyang 550001, People’s Republic of China; 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; 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; Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China ; na.wang@xao.ac.cnWe report on radio observations of four magnetars SGR 0501+4516, Swift 1834.9–0846, 1E 1841–045, SGR 1900+14, and a magnetar-like pulsar PSR J1846–0258 with the Five-hundred-meter Aperture Spherical radio Telescope at 1250 MHz. Notably, PSR J1846–0258 was observed 1 month after its 2020 X-ray outburst. The data from these observations were searched for periodic emissions and single pulses. No radio emission was detected for any of our targets. After accounting for the effect of red noise, the nondetections yield stringent upper limits on the radio flux density, with S _1250 ≤ 16.9 μ Jy for the four magnetars and the magnetar-like pulsar, along with constraints on single-pulse flux densities. Our deep radio observations suggest that these magnetars and the magnetar-like pulsar are indeed radio-quiet sources or unfavorably beamed. The resulting flux upper limits, along with previous findings, are discussed, highlighting the significance of further radio observations of radio-quiet magnetars and the high-B magnetar-like pulsar.https://doi.org/10.3847/1538-4357/ada3c4Magnetars |
| spellingShingle | Juntao Bai Na Wang Shi Dai Shuangqiang Wang Jianping Yuan Wenming Yan Lunhua Shang Xin Xu Shijun Dang Zhen Zhang Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST The Astrophysical Journal Magnetars |
| title | Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST |
| title_full | Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST |
| title_fullStr | Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST |
| title_full_unstemmed | Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST |
| title_short | Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST |
| title_sort | deep searches for radio pulsations and bursts from four magnetar and a magnetar like pulsar with fast |
| topic | Magnetars |
| url | https://doi.org/10.3847/1538-4357/ada3c4 |
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