Braking PSR J1734-3333 with a possible fall-back disk

CORC > 新疆天文台 > 研究单元未命名 > 射电天文研究室 > 脉冲星研究团组

	Braking PSR J1734-3333 with a possible fall-back disk
	Liu, Xiong-Wei 1,2,3; Xu, Ren-Xin 2,3; Qiao, Guo-Jun 2,3; Han, Jin-Lin 4; Tong, Hao5
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2014
卷号	14 期号:1 页码:85-92
关键词	pulsars: individual (PSR J1734-3333) stars: evolution stars: neutron
英文摘要	The very small braking index of PSR J1734-3333, n = 0.9 +/- 0.2, challenges the current theories of braking mechanisms in pulsars. We present a possible interpretation that this pulsar is surrounded by a fall-back disk and braked by it. A modified braking torque is proposed based on the competition between the magnetic energy density of the pulsar and the kinetic energy density of the fall-back disk. With this torque, a self-similar disk can fit all the observed parameters of PSR J1734-3333 with natural initial values of parameters. In this regime, the star will evolve to the region having anomalous X-ray pulsars and soft gamma repeaters in the P-(P) over dot diagram in about 20 000 years and stay there for a very long time. The mass of the disk around PSR J1734-3333 in our model is about 10M(circle plus), similar to the observed mass of the disk around AXP 4U 0142+61.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	MAGNETIZED NEUTRON-STARS ; SOFT GAMMA-REPEATERS ; X-RAY ; INFRARED COUNTERPART ; BLACK-HOLE ; PULSAR ; ACCRETION ; EVOLUTION ; INDEX ; SUPERNOVA
收录类别	SCI
语种	英语
WOS记录号	WOS:000330160200007
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/584]
专题	脉冲星研究团组新疆天文台_射电天文研究室
作者单位	1.China West Normal Univ, Sch Phys, Nanchong 637002, Peoples R China 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 3.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 4.Chinese Acad Sci, Natl Astron Observat, Beijing 100012, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiong-Wei,Xu, Ren-Xin,Qiao, Guo-Jun,et al. Braking PSR J1734-3333 with a possible fall-back disk[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2014,14(1):85-92.
APA	Liu, Xiong-Wei,Xu, Ren-Xin,Qiao, Guo-Jun,Han, Jin-Lin,&Tong, Hao.(2014).Braking PSR J1734-3333 with a possible fall-back disk.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,14(1),85-92.
MLA	Liu, Xiong-Wei,et al."Braking PSR J1734-3333 with a possible fall-back disk".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 14.1(2014):85-92.