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Pulse profile variability associated with the glitch of PSR J1048-5832

文献类型：期刊论文

作者Liu, P.7,8; Yuan, J. -P5,6,7; Ge, M. -Y4; Ye, W. -T4,6; Zhou, S. -Q3; Dang, S. -J2; Zhou, Z. -R9,15; Guegercinoglu, E.10; Wang, W. -H1; Wang, P.10,11
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2024-09-11
卷号533期号:4页码:4274-4286
关键词equation of state stars: neutron pulsars: individual: (PSR J1048-5832)
ISSN号0035-8711
DOI10.1093/mnras/stae1973
产权排序2
英文摘要PSR J1048-5832 (B1046-58) is a Vela-like pulsar that has exhibited multiple glitch events. In this study, we analyse the timing data spanning nearly 16 yr, acquired from both the Fermi Gamma-ray Space Telescope and the Parkes 64 m radio telescope. As a result, a total of five glitches are detected within this data set. Among them, a previously unknown small glitch is newly found at MJD 56985(9) (November 24, 2014), making it the smallest glitch recorded from this source so far. The increments of the spin frequency and its first derivative are Delta nu approximate to 2.2(3)x10(-8) Hz, and Delta V approximate to 3(2)x10(-15) s(-2), respectively. Significant changes in the integrated normalized mean pulse profile are detected following three of the five glitch events, notably in the radio band. Although no evidence of a correlation is found between the spin-down rate and profile evolution, the jump phenomenon of W55 (pulse width at the 55% peak amplitude) after the glitch in the narrow mode suggests that the glitch may influence the profile change. We discuss the influence of glitches on the pulsar's emission properties in terms of platelet motion by a crustquake and also put constraints on the equation of state from the moment of inertia and response time-scales of involved superfluid layers inside the neutron star.
WOS关键词GAMMA-RAY PULSAR ; MULTICOMPONENT GAUSSIAN FITS ; NEUTRON-STAR ; BIG GLITCHER ; SPIN-DOWN ; TIMING IRREGULARITIES ; GEOMETRICAL ANALYSIS ; MAGNETIC-FIELD ; CRAB PULSAR ; VELA PULSAR
资助项目National SKA Program of China[2020SKA0120300] ; Chinese Academy of Sciences[XDB0550300] ; National Natural Science Foundation of China[12273028] ; National Natural Science Foundation of China[12041304] ; National Natural Science Foundation of China[12288102] ; National Natural Science Foundation of China[11988101] ; National Natural Science Foundation of China[U2031117] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013] ; Natural Science Basic Research Program of Shaanxi[LQ24A030002] ; Zhejiang Provincial Natural Science Foundation of China[2021055] ; Youth Innovation Promotion Association CAS[ZK[2022]304] ; Guizhou Provincial Science and Technology Foundation[KY[2022]132] ; Scientific Research Project of the Guizhou Provincial Education ; Commonwealth of Australia
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001322519400004
出版者OXFORD UNIV PRESS
资助机构National SKA Program of China ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Natural Science Basic Research Program of Shaanxi ; Zhejiang Provincial Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Guizhou Provincial Science and Technology Foundation ; Scientific Research Project of the Guizhou Provincial Education ; Commonwealth of Australia
源URL[http://ir.xao.ac.cn/handle/45760611-7/7033]  
专题脉冲星研究团组
通讯作者Yuan, J. -P; Ge, M. -Y; Li, A.
作者单位1.Wenzhou Univ, Coll Math & Phys, Wenzhou 325035, Peoples R China
2.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China
3.Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China
4.Chinese Acad Sci, Key Lab Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China
5.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
6.Univ Chinese Acad Sci, Sch Astron, Beijing 100049, Peoples R China
7.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
8.Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China
9.Chinese Acad Sci, Key Lab Time Reference & Applicat, Xian 710600, Peoples R China
10.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
推荐引用方式
GB/T 7714		 Liu, P.,Yuan, J. -P,Ge, M. -Y,et al. Pulse profile variability associated with the glitch of PSR J1048-5832[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,533(4):4274-4286.
APA Liu, P..,Yuan, J. -P.,Ge, M. -Y.,Ye, W. -T.,Zhou, S. -Q.,...&Wang, N..(2024).Pulse profile variability associated with the glitch of PSR J1048-5832.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,533(4),4274-4286.
MLA Liu, P.,et al."Pulse profile variability associated with the glitch of PSR J1048-5832".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 533.4(2024):4274-4286.

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