Spin Evolution of the Magnetar SGR J1935+2154

doi:10.1088/1674-4527/ad0f0c

	Spin Evolution of the Magnetar SGR J1935+2154
	Ge, Ming-Yu 10; Yang, Yuan-Pei 11,12; Lu, Fang-Jun 10,13; Zhou, Shi-Qi 9; Ji, Long 9; Zhang, Shuang-Nan 8,10; Zhang, Bing 6,7; Zhang, Liang 10; Wang, Pei 15; Lee, Kejia 14,15
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2024
卷号	24 期号:1
关键词	(stars:) pulsars: general (stars:) pulsars: individual (SGR J1935+2154) X-rays: bursts
ISSN号	1674-4527
DOI	10.1088/1674-4527/ad0f0c
产权排序	第13完成单位
文献子类	Article
英文摘要	Fast radio bursts (FRBs) are short pulses observed in radio frequencies usually originating from cosmological distances. The discovery of FRB 200428 and its X-ray counterpart from the Galactic magnetar SGR J1935+2154 suggests that at least some FRBs can be generated by magnetars. However, the majority of X-ray bursts from magnetars are not associated with radio emission. The fact that only in rare cases can an FRB be generated raises the question regarding the special triggering mechanism of FRBs. Here we report long time spin evolution of SGR J1935+2154 until the end of 2022. According to nu and , the spin evolution of SGR J1935+2154 could be divided into two stages. The first stage evolves relatively steady evolution until 2020 April 27. After the burst activity in 2020, the spin of SGR J1935+2154 shows strong variations, especially for . After the burst activity in 2022 October, a new spin-down glitch with Delta nu/nu = (-7.2 +/- 0.6) x 10(-6) is detected around MJD 59876, which is the second event in SGR J1935+2154. At the end, spin frequency and pulse profile do not show variations around the time of FRB 200428 and radio bursts 221014 and 221021, which supply strong clues to constrain the trigger mechanism of FRBs or radio bursts.
学科主题	天文学
URL标识	查看原文
出版地	20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA
资助项目	National Key R&D Program of China[2021YFA0718500]; Minister of Science and Technology of China (MOST); National Natural Science Foundation of China[12173103]; National Natural Science Foundation of China[12003028]; National Natural Science Foundation of China[U2038101]; National Natural Science Foundation of China[U2038102]; National Natural Science Foundation of China[11733009]; International Partnership Program of Chinese Academy of Sciences[113111KYSB20190020]; National SKA Program of China[2022SKA0130100]; China Manned Spaced Project[CMS-CSST-2021-B11]
WOS关键词	FAST RADIO-BURSTS ; X-RAY ; CRAB PULSAR ; ANTI-GLITCH ; EMISSION ; BEHAVIOR ; DISCOVERY ; OUTBURST ; PHASE ; MODEL
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:001138172400001
资助机构	National Key R&D Program of China[2021YFA0718500] ; Minister of Science and Technology of China (MOST) ; National Natural Science Foundation of China[12173103, 12003028, U2038101, U2038102, 11733009] ; International Partnership Program of Chinese Academy of Sciences[113111KYSB20190020] ; National SKA Program of China[2022SKA0130100] ; China Manned Spaced Project[CMS-CSST-2021-B11]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26437]
专题	星系类星体研究组
作者单位	1.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 3.CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei 230026, China; 4.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, China; 5.Key laboratory of Modern Astronomy and Astrophysics, Nanjing University, Nanjing 210023, China 6.Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154, USA; 7.Nevada Center for Astrophysics, University of Nevada, Las Vegas, NV 89154, USA; 8.University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China; 9.School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai 519082, China; 10.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; gemy@ihep.ac.cn;
推荐引用方式 GB/T 7714	Ge, Ming-Yu,Yang, Yuan-Pei,Lu, Fang-Jun,et al. Spin Evolution of the Magnetar SGR J1935+2154[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(1).
APA	Ge, Ming-Yu.,Yang, Yuan-Pei.,Lu, Fang-Jun.,Zhou, Shi-Qi.,Ji, Long.,...&Li, Qiao-Chu.(2024).Spin Evolution of the Magnetar SGR J1935+2154.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(1).
MLA	Ge, Ming-Yu,et al."Spin Evolution of the Magnetar SGR J1935+2154".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.1(2024).