Discovery of 15 New Pulsars at High Galactic Latitudes with FAST
We present the discovery and timing results for 15 pulsars discovered in a high-Galactic-latitude survey conducted with the Five-hundred-meter Aperture Spherical Telescope. The survey targeted a region as close as possible to the Galactic center, encompassing an area near the Galactic bulge. The new...
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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/adbb65 |
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| author | Xin Xu Shi Dai Qijun Zhi Juntao Bai Joanna Berteaud Francesca Calore Maïca Clavel Weiwei Zhu Di Li Rushuang Zhao Renxin Xu Guojun Qiao |
| author_facet | Xin Xu Shi Dai Qijun Zhi Juntao Bai Joanna Berteaud Francesca Calore Maïca Clavel Weiwei Zhu Di Li Rushuang Zhao Renxin Xu Guojun Qiao |
| author_sort | Xin Xu |
| collection | DOAJ |
| description | We present the discovery and timing results for 15 pulsars discovered in a high-Galactic-latitude survey conducted with the Five-hundred-meter Aperture Spherical Telescope. The survey targeted a region as close as possible to the Galactic center, encompassing an area near the Galactic bulge. The newly discovered pulsars consist of 11 normal pulsars and four millisecond pulsars (MSPs). Among the MSPs, three are identified in binary systems with orbital periods of ∼3.1, 4.6, and 12.5 days, respectively. We have successfully obtained coherent timing solutions for three of the normal pulsars (PSRs J1745−0059, J1746−0156, and J1800−0059). Furthermore, within our data set, we found that four pulsars (three new and one known) show mode-changing and/or subpulse-drifting phenomena. Comparing our discoveries with simulations of the Galactic disk and bulge MSP populations indicates that these new pulsars are most likely located in the disk. Nonetheless, our discoveries demonstrate that deep surveys at high Galactic latitudes have significant potential to enhance our understanding of the MSP population in the direction of the bulge. |
| format | Article |
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| 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-fe308d33ca294ba4af8dca6188ecc23c2025-08-20T03:41:57ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01982211710.3847/1538-4357/adbb65Discovery of 15 New Pulsars at High Galactic Latitudes with FASTXin Xu0https://orcid.org/0009-0006-3224-4319Shi Dai1https://orcid.org/0000-0002-9618-2499Qijun Zhi2https://orcid.org/0000-0001-9389-5197Juntao Bai3https://orcid.org/0000-0002-1052-1120Joanna Berteaud4https://orcid.org/0000-0003-4962-145XFrancesca Calore5https://orcid.org/0000-0001-7722-6145Maïca Clavel6https://orcid.org/0000-0003-0724-2742Weiwei Zhu7https://orcid.org/0000-0001-5105-4058Di Li8https://orcid.org/0000-0003-3010-7661Rushuang Zhao9https://orcid.org/0000-0002-1243-0476Renxin Xu10https://orcid.org/0000-0002-9042-3044Guojun Qiao11School of Mathematical 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 China ; qjzhi@gznu.edu.cnAustralia Telescope National Facility , CSIRO, Space and Astronomy, P.O. Box 76, Epping, NSW 1710, Australia ; shi.dai@csiro.au; Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, AustraliaGuizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of China ; qjzhi@gznu.edu.cn; School of Physics and Electronic Science, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of China; School of Astronomy and Space Science, University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaUniversity of Maryland , Department of Astronomy, College Park, MD 20742, USA; NASA Goddard Space Flight Center , Code 662, Greenbelt, MD 20771, USALAPTh , CNRS, USMB, 74940 Annecy, FranceUniv. Grenoble Alpes , CNRS, IPAG, 38000 Grenoble, FranceNational 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 China; Department of Astronomy, Tsinghua University , Beijing 100190, People’s Republic of ChinaGuizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of China ; qjzhi@gznu.edu.cn; School of Physics and Electronic Science, Guizhou Normal University , Guiyang 550001, People’s Republic of ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University , Beijing 100871, People’s Republic of ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University , Beijing 100871, People’s Republic of ChinaWe present the discovery and timing results for 15 pulsars discovered in a high-Galactic-latitude survey conducted with the Five-hundred-meter Aperture Spherical Telescope. The survey targeted a region as close as possible to the Galactic center, encompassing an area near the Galactic bulge. The newly discovered pulsars consist of 11 normal pulsars and four millisecond pulsars (MSPs). Among the MSPs, three are identified in binary systems with orbital periods of ∼3.1, 4.6, and 12.5 days, respectively. We have successfully obtained coherent timing solutions for three of the normal pulsars (PSRs J1745−0059, J1746−0156, and J1800−0059). Furthermore, within our data set, we found that four pulsars (three new and one known) show mode-changing and/or subpulse-drifting phenomena. Comparing our discoveries with simulations of the Galactic disk and bulge MSP populations indicates that these new pulsars are most likely located in the disk. Nonetheless, our discoveries demonstrate that deep surveys at high Galactic latitudes have significant potential to enhance our understanding of the MSP population in the direction of the bulge.https://doi.org/10.3847/1538-4357/adbb65Radio pulsarsBinary pulsarsMillisecond pulsars |
| spellingShingle | Xin Xu Shi Dai Qijun Zhi Juntao Bai Joanna Berteaud Francesca Calore Maïca Clavel Weiwei Zhu Di Li Rushuang Zhao Renxin Xu Guojun Qiao Discovery of 15 New Pulsars at High Galactic Latitudes with FAST The Astrophysical Journal Radio pulsars Binary pulsars Millisecond pulsars |
| title | Discovery of 15 New Pulsars at High Galactic Latitudes with FAST |
| title_full | Discovery of 15 New Pulsars at High Galactic Latitudes with FAST |
| title_fullStr | Discovery of 15 New Pulsars at High Galactic Latitudes with FAST |
| title_full_unstemmed | Discovery of 15 New Pulsars at High Galactic Latitudes with FAST |
| title_short | Discovery of 15 New Pulsars at High Galactic Latitudes with FAST |
| title_sort | discovery of 15 new pulsars at high galactic latitudes with fast |
| topic | Radio pulsars Binary pulsars Millisecond pulsars |
| url | https://doi.org/10.3847/1538-4357/adbb65 |
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