Accretion magnetar in the close binary system 4U 2206+54

被引：11
作者：
Ikhsanov, N. R. [1 ,2 ]
Beskrovnaya, N. G. [2 ]
机构：
[1] NASA, Marshall Space Flight Ctr, Washington, DC USA
[2] Russian Acad Sci, Main Pulkovo Astron Observ, Moscow 117901, Russia
来源：
ASTROPHYSICS | 2010年 / 53卷 / 02期
关键词：
binary x-ray systems: pulsars: magnetic fields: accretion; individual: 4U 2206+e54; X-RAY PULSARS; NEUTRON-STARS; WIND-ACCRETION; MODEL; 4U-2206+54; MAGNETOSPHERE; POPULATION; ORIGIN; FIELDS; STATE;
D O I：
10.1007/s10511-010-9115-z
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The magneto-rotational evolution of a neutron star in the massive binary system 4U 2206+54 is discussed in light of the recent discovery of its 5555 s rotational period and its average rate of spin-down. We show that this behavior of the neutron star means that its magnetic field exceeds the quantum mechanical critical limit and it is an accretion magnetar. The system's evolution is explained by wind driven mass transfer without formation of an accretion disk. The constant character of the x-ray source indicates a steady rate of accretion and raises anew the question of the stability of the boundary of the magnetosphere of a star undergoing spherical accretion. A solution to this problem is also a key to determining the mechanism for the slowing down of the star's rotation.
引用
收藏
页码：237 / 250
页数：14
相关论文
共 38 条
  • [21] IKHSANOV NR, 2005, ASTROFIZIKA, V48, P477
  • [22] ILLARIONOV AF, 1975, ASTRON ASTROPHYS, V39, P185
  • [23] MODEL FOR BURSTING X-RAY SOURCES - TIME-DEPENDENT ACCRETION BY MAGNETIC NEUTRON STARS AND DEGENERATE DWARFS
    LAMB, FK
    FABIAN, AC
    PRINGLE, JE
    LAMB, DQ
    [J]. ASTROPHYSICAL JOURNAL, 1977, 217 (01) : 197 - 212
  • [24] Lipunov V. M., 1976, Pis'ma v Astronomicheskie Zhurnal, V2, P343
  • [25] Lipunov V. M., 1987, Astrophysics of Neutron Stars
  • [26] LIPUNOV VM, 1982, ASTRON ZH+, V59, P888
  • [27] The parkes multibeam pulsar survey - VI. Discovery and timing of 142 pulsars and a galactic population analysis
    Lorimer, D. R.
    Faulkner, A. J.
    Lyne, A. G.
    Manchester, R. N.
    Kramer, M.
    McLaughlin, M. A.
    Hobbs, G.
    Possenti, A.
    Stairs, I. H.
    Camilo, F.
    Burgay, M.
    D'Amico, N.
    Corongiu, A.
    Crawford, F.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 372 (02) : 777 - 800
  • [28] ACCRETION MAGNETOSPHERE STABILITY .2. POLAR-CAP DRIP
    MICHEL, FC
    [J]. ASTROPHYSICAL JOURNAL, 1977, 216 (03) : 838 - 841
  • [29] A magnetorotational core-collapse model with jets
    Moiseenko, S. G.
    Bisnovatyi-Kogan, G. S.
    Ardeljan, N. V.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 370 (01) : 501 - 512
  • [30] On the nature of the hard X-ray source 4U 2206+54
    Negueruela, I
    Reig, P
    [J]. ASTRONOMY & ASTROPHYSICS, 2001, 371 (03): : 1056 - 1064
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