Institutional Repository of Radio Astronomy Research Laboratory
| New pulse profile variability associated with a glitch of PSR J0738-4042 | |
Zhou, S. Q.1,2,3,4; Guegercinoglu, E.5,6; Yuan, J. P.2,8 ; Ge, M. Y.8; Yu, C.1,3,4; Zhang, C. M.5,9,10; Zhang, J.11; Feng, Z. W.12; Ye, C. Q.1,4
| |
| 2022-12-01 | |
| Source Publication | Monthly Notices of the Royal Astronomical Society
 |
| ISSN | 0035-8711 |
| Volume | 519Issue:1Pages:74-84 |
| Contribution Rank | 2 |
| Abstract | The close correlation observed between emission state and spin-down rate change of pulsars has many implications both for the magnetospheric physics and the neutron star interior. The middle-aged pulsar PSR J0738-4042, which had been observed to display variations in the pulse profile associated with its spin-down rate change due to external effects, is a remarkable example. In this study, based on the 12.5 yr combined public timing data from UTMOST and Parkes, we have detected a new emission-rotation correlation in PSR J0738-4042 concurrent with a glitch. A glitch that occurred at MJD 57359 (5) (2015 December 3) with delta v/ v similar to 0.36(4) x 10 (-9) is the first glitch event observed in this pulsar, and is probably the underlying cause of the emission-rotation correlation. Unlike the usual post-glitch behaviours, the braking torque on the pulsar has continued to increase o v er 1380 d, corresponding to a significant decrease in (SIC). As for changes in the pulse profile after the glitch, the relative amplitude of the leading component weakens drastically, while the middle component becomes stronger. A combined model of crustquake induced platelet movement and vortex creep response is invoked to account for this rare correlation. In this scenario, magnetospheric state-change is naturally linked to the pulsar-intrinsic processes that give rise to a glitch. |
| Corresponding Author | Guegercinoglu, E.(egugercinoglu@gmail.com) |
| Keyword | methods: data analysis stars:neutron pulsars: general pulsars: individual: (PSR J0738-4042) gamma-ray pulsar vortex creep timing observations neutron-stars crab pulsar inclination angle braking indexes magnetic-field radio pulsars state change Astronomy & Astrophysics |
| Subtype | Article |
| DOI | 10.1093/mnras/stac3355 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | GAMMA-RAY PULSAR ; VORTEX CREEP ; TIMING OBSERVATIONS ; NEUTRON-STARS ; CRAB PULSAR ; INCLINATION ANGLE ; BRAKING INDEXES ; MAGNETIC-FIELD ; RADIO PULSARS ; STATE CHANGE |
| Funding Project | Sichuan Youth Science and Technology Foundation Innovation Research Team[21CXTD0038] ; Fundamental Research Funds of China West Normal University[20B009] ; Guiding Local Science and Technology Development Projects by the Central Government of China[2021ZYD0031] ; National Natural Science Foundation of China[NSFC-11373064] ; National Natural Science Foundation of China[11521303] ; National Natural Science Foundation of China[11733010] ; National Natural Science Foundation of China[11873103] ; National Natural Science Foundation of China[U2031121] ; National Natural Science Foundation of China[11873080] ; National Natural Science Foundation of China[12105231] ; National Natural Science Foundation of China[U1838201] ; National Natural Science Foundation of China[U1838202] ; National Natural Science Foundation of China[U1838104] ; National Natural Science Foundation of China[U1938103] ; National Natural Science Foundation of China[U1938109] ; National Natural Science Foundation of China[U1731111] ; National Natural Science Foundation of China[U1938117] ; National Natural Science Foundation of China[11988101] ; National Natural Science Foundation of China[U1731238] ; National Natural Science Foundation of China[11703003] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000920876000006 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | Sichuan Youth Science and Technology Foundation Innovation Research Team ; Fundamental Research Funds of China West Normal University ; Guiding Local Science and Technology Development Projects by the Central Government of China ; National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5151 |
| Collection | 射电天文研究室_脉冲星研究团组 |
| Affiliation | 1.School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai, 519082, China; 2.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Xinjiang 830011, China; 3.State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Macau 999078, China; 4.CSST Science Centre for the Guangdong-Hong Kong-Macau Greater Bay Area, Zhuhai, 519082, China; 5.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, China; 6.Istanbul University, Faculty of Science, Department of Astronomy and Space Sciences, Beyazıt, 34119, Istanbul, Turkey; 7.Centre for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China; 8.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; 9.University of Chinese Academy of Sciences, School of Astronomy and Space Science, Beijing 100049, China; 10.University of Chinese Academy of Sciences, School of Physical Sciences, Beijing 100049, China; 11.Department of Physics and Electronic Engineering, QiLu Normal University, Jinan 250033, China; 12.School of Physics and Astronomy, China West Normal University, Nanchong, 637009, China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zhou, S. Q.,Guegercinoglu, E.,Yuan, J. P.,et al. New pulse profile variability associated with a glitch of PSR J0738-4042[J]. Monthly Notices of the Royal Astronomical Society,2022,519(1):74-84. |
| APA | Zhou, S. Q..,Guegercinoglu, E..,Yuan, J. P..,Ge, M. Y..,Yu, C..,...&Ye, C. Q..(2022).New pulse profile variability associated with a glitch of PSR J0738-4042.Monthly Notices of the Royal Astronomical Society,519(1),74-84. |
| MLA | Zhou, S. Q.,et al."New pulse profile variability associated with a glitch of PSR J0738-4042".Monthly Notices of the Royal Astronomical Society 519.1(2022):74-84. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhou-2022-New pulse （1174KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment