| Spin-down and emission variations for PSR J0742-2822 | |
| Dang, Shi-Jun3,4; Wang, Na3,5; Wang, Hui-Hui6; Yuan, Jian-Ping3,5; Shang, Lun-Hua1,7; Yuen, Rai3,5; Ge, Ming-Yu8; Zhou, Xia3,5; Wang, Shuang-Qiang3,4; Kou, Fei-Fei1,3 | |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 2021-03-01 | |
| 卷号 | 21期号:2页码:042 |
| 关键词 | pulsars general stars pulsar methods timing |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/21/2/42 |
| 产权排序 | 1 |
| 英文摘要 | PSR J0742-2822 is known for its quasi-periodic changes in the observed pulse profile and spindown rate. In this paper, we analyzed 13 years of timing data obtained with the Nanshan 25-m radio telescope and the Parkes 64-m radio telescope. We found that the average values of the spin-down rate (<(nu) over dot >) of this pulsar changed in four different states. We investigated the correlation between <(nu) over dot > and W-50, and ascertained that the correlation changed in different <(nu) over dot > states. Moreover, not all the changes in <(nu) over dot > states and correlation can be associated with glitch activities. We examined the long term evolution of gamma-ray flux (0.1-300 GeV) and the pulse profiles corresponding to the four different states using Fermi-LAT Pass 8 (P8R3) data from 2008 August 5 to 2019 October 1. We did not detect a significant change in gamma-ray flux or the pulse profile. Our results suggest that the connection between pulsar rotation and emission is more complex than previously reported for this pulsar. |
| URL标识 | 查看原文 |
| 资助项目 | National Key Research and Development Program of China[2016YFA0400804] ; National Key Research and Development Program of China[2017YFA0402602] ; National Key Research and Development Program of China[2018YFA0404603] ; National Key Research and Development Program of China[2018YFA0404703] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments from Ministry of Finance of China (MOF) ; National Natural Science Foundation of China[11873080] ; National Natural Science Foundation of China[U1831102] ; National Natural Science Foundation of China[U1731238] ; National Natural Science Foundation of China[U1938109] ; National Natural Science Foundation of China[U1838104] ; National Natural Science Foundation of China[11873040] ; National Natural Science Foundation of China[11573010] ; National Natural Science Foundation of China[11661161010] ; National Natural Science Foundation of China[U1631103] ; National Natural Science Foundation of China[U1838102] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; CAS Light of West China Program[2018-XBQNXZ-B-023] ; CAS Light of West China Program[2018-XBQNXZ-B-025] ; CAS Light of West China Program[2016-QNXZ-B-24] ; Tianshan Youth Program[2018Q039] ; Open Project Program of the Key Laboratory of FAST, NAOC, Chinese Academy of Sciences ; China Postdoctoral Science Foundation[2019M650847] ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Science and Technology Fund of Guizhou Province[(2016)-4008] ; Science and Technology Fund of Guizhou Province[(2017) 5726-37] ; Commonwealth of Australia ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talent |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| WOS记录号 | WOS:000631501800001 |
| 资助机构 | National Key Research and Development Program of China ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments from Ministry of Finance of China (MOF) ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; CAS Light of West China Program ; Tianshan Youth Program ; Open Project Program of the Key Laboratory of FAST, NAOC, Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Science and Technology Fund of Guizhou Province ; Commonwealth of Australia ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talent |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3946]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Wang, Na; Yuan, Jian-Ping |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing 100101, Peoples R China 2.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 6.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 7.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Peoples R China 8.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 9.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dang, Shi-Jun,Wang, Na,Wang, Hui-Hui,et al. Spin-down and emission variations for PSR J0742-2822[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(2):042. |
| APA | Dang, Shi-Jun.,Wang, Na.,Wang, Hui-Hui.,Yuan, Jian-Ping.,Shang, Lun-Hua.,...&Zhou, Zu-Rong.(2021).Spin-down and emission variations for PSR J0742-2822.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(2),042. |
| MLA | Dang, Shi-Jun,et al."Spin-down and emission variations for PSR J0742-2822".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.2(2021):042. |
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