The spin-down state change and mode change associated with glitch activity of PSR B2035+36 | |
Kou, F. F.1,2; Yuan, J. P.1,3; Wang, N.1,3; Yan, W. M.1; Dang, S. J.1,2 | |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2018-07-01 | |
卷号 | 478期号:1页码:L24-L28 |
关键词 | stars: neutron pulsar: general pulsars: individual:(PSR B2035+36) |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnrasl/sly068 |
通讯作者 | Yuan, J. P.(yuanjp@xao.ac.cn) |
英文摘要 | We presented timing results of PSR B2035+36 using similar to 9-yr observations with the Nanshan 25-m radio telescope. PSR B2035+ 36 was reported to exhibit significant changes in pulse profile correlated with spin-down state variations. We found that the pulsar underwent a glitch with a jump in frequency of Delta nu similar to 12.4(5) nHz around MJD 52950. Unusually, the spin-down rate increased persistently over 800 d after the glitch, and the average spin-down rate postglitch was about 9.6 per cent larger than that pre-glitch. After the glitch activity, the pulse profile became narrower and the pulsar began to switch between two emission modes, with pulse widths (W-50mean) of 8.5(7)degrees and 3.7(3)degrees, respectively. In addition to that, the relatively narrow pulse profile gradually became dominant. All of the observations indicate that there should be a connection between magnetospheric behaviour and glitch activity. We discuss one possibility of magnetosphere fluctuation triggered by the glitch event. |
WOS关键词 | PULSAR-TIMING PACKAGE ; NEUTRON-STARS ; EVOLUTION ; TEMPO2 |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000450777200005 |
内容类型 | 期刊论文 |
源URL | [http://libir.pmo.ac.cn/handle/332002/20698] |
专题 | 中国科学院紫金山天文台 |
通讯作者 | Yuan, J. P. |
作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Kou, F. F.,Yuan, J. P.,Wang, N.,et al. The spin-down state change and mode change associated with glitch activity of PSR B2035+36[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,478(1):L24-L28. |
APA | Kou, F. F.,Yuan, J. P.,Wang, N.,Yan, W. M.,&Dang, S. J..(2018).The spin-down state change and mode change associated with glitch activity of PSR B2035+36.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,478(1),L24-L28. |
MLA | Kou, F. F.,et al."The spin-down state change and mode change associated with glitch activity of PSR B2035+36".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 478.1(2018):L24-L28. |
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