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ROTATIONAL EVOLUTION OF MAGNETARS IN THE PRESENCE OF A FALLBACK DISK
Tong, H.1; Wang, W.2; Liu, X. W.3; Xu, R. X.4
2016-12-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume833Issue:2Pages:265
Contribution Rank1
Abstract

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.

KeywordPulsars: Individual (1e 161348-5055) Accretion Stars: Magnetars Accretion Disks
SubtypeArticle
DOI10.3847/1538-4357/833/2/265
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS KeywordX-ray Source ; Magnetized Neutron-stars ; Young Supernova Remnant ; Compact Objects ; Spin Evolution ; Long-period ; Black-hole ; Accretion ; Field ; Pulsars
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000391169600140
Funding Organization973 Program(2015CB857100) ; Qing Cu Hui of CAS ; NSFC(U1531137)
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/1420
Collection射电天文研究室_脉冲星研究团组
射电天文研究室
110米口径全可动射电望远镜(QTT)_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
Affiliation1.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
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
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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