中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
ROTATIONAL EVOLUTION OF MAGNETARS IN THE PRESENCE OF A FALLBACK DISK

文献类型:期刊论文

作者Tong, H.1; Wang, W.2; Liu, X. W.3; Xu, R. X.4
刊名ASTROPHYSICAL JOURNAL
出版日期2016-12-20
卷号833期号:2页码:265
ISSN号0004-637X
关键词accretion, accretion disks pulsars: individual (1E 161348-5055) stars: magnetars
英文摘要Magnetars may have a strong surface dipole field. Observationally, two magnetars may have passive fallback disks. In the presence of a fallback disk, the rotational evolution of magnetars may be changed. In the self-similar fallback disk model, it is found that (1) when the disk mass is significantly lower than 10(-6). M-circle dot, the magnetar is unaffected by the fallback disk and it will be a normal magnetar. (2) When the disk mass is high but the surface dipole field of the magnetar is about or below 10(14) G, the magnetar will also be a normal magnetar. A magnetar plus a passive fallback disk system is expected. This may correspond to the observations of magnetars 4U 0142+61 and 1E 2259+586. (3) When the disk mass is high and the surface dipole field of the magnetar is as high as 4 x 10(15) G, the magnetar will evolve from the ejector phase to the propeller phase, and then enter rotational equilibrium. The magnetar will be slowed down quickly in the propeller phase. The final rotational period can be as high 2 x 10(4) s. This may correspond to the super-slow magnetar in the supernova remnant RCW 103. Therefore, the three types of magnetars can be understood in a unified way.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]X-RAY SOURCE ; MAGNETIZED NEUTRON-STARS ; YOUNG SUPERNOVA REMNANT ; COMPACT OBJECTS ; SPIN EVOLUTION ; LONG-PERIOD ; BLACK-HOLE ; ACCRETION ; FIELD ; PULSARS
收录类别SCI
语种英语
WOS记录号WOS:000391169600140
源URL[http://ir.xao.ac.cn/handle/45760611-7/1420]  
专题脉冲星研究团组
新疆天文台_射电天文研究室
新疆天文台_110米口径全可动射电望远镜(SmART)_110米大口径全可动射电望远镜关键技术研究(973项目)_课题1:大样本射电天体的观测和前沿问题研究
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.China West Normal Univ, Sch Phys, Nanchong 637002, Peoples R China
4.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Tong, H.,Wang, W.,Liu, X. W.,et al. ROTATIONAL EVOLUTION OF MAGNETARS IN THE PRESENCE OF A FALLBACK DISK[J]. ASTROPHYSICAL JOURNAL,2016,833(2):265.
APA Tong, H.,Wang, W.,Liu, X. W.,&Xu, R. X..(2016).ROTATIONAL EVOLUTION OF MAGNETARS IN THE PRESENCE OF A FALLBACK DISK.ASTROPHYSICAL JOURNAL,833(2),265.
MLA Tong, H.,et al."ROTATIONAL EVOLUTION OF MAGNETARS IN THE PRESENCE OF A FALLBACK DISK".ASTROPHYSICAL JOURNAL 833.2(2016):265.

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来源:新疆天文台

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