BLACK HOLE SPIN IN Sw J1644+57 and Sw J2058+05

BLACK HOLE SPIN IN Sw J1644+57 and Sw J2058+05
复制标题

Sw J1644 57 和 Sw J2058 05 中的黑洞旋转

DOI:
10.1088/2041-8205/740/1/l27
复制
发表时间:
2011-08
影响因子:
7.9
通讯作者:
Lei, Wei-Hua
Lei, Wei-Hua
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zhang, Bing;Lei, Wei-Hua

文献摘要

参考文献

被引文献

相似文献

最近,Swift卫星发现了一个硬X射线瞬变事件Sw J1644+57。它可能标志着来自超大质量黑洞(BH)的相对论喷流的开始,可能由潮汐破坏事件(TDE)触发。同一类别的另一个候选者Sw J2058+05也被报道。低事件率表明,只有一小部分的TDE发射相对论喷流。一个普遍的猜测是,这些罕见的事件与快速旋转的黑洞有关。我们属性喷气发动机的Blandford-Znajek机制,并使用现有的数据来约束BH自旋参数的两个事件。结果表明,这两个黑洞确实具有中到高的自旋,这表明黑洞自旋可能是Sw J1644+57事件背后的关键因素。
Recently, a hard X-ray transient event, Sw J1644+57, was discovered by the Swift satellite. It likely marks the onset of a relativistic jet from a supermassive black hole (BH), possibly triggered by a tidal disruption event (TDE). Another candidate in the same category, Sw J2058+05, was also reported. The low event rate suggests that only a small fraction of TDEs launch relativistic jets. A common speculation is that these rare events are related to rapidly spinning BHs. We attribute jet launching to the Blandford–Znajek mechanism and use the available data to constrain the BH spin parameter for the two events. It is found that the two BHs indeed carry a moderate to high spin, suggesting that BH spin is likely the crucial factor behind the Sw J1644+57-like events.
DOI: 10.1086/424684
发表时间: 2004-04
期刊: The Astrophysical Journal
影响因子: --
作者:
S. Kobayashi;P. Laguna;E. Phinney;P. Mészáros;P. Mészáros
通讯作者: S. Kobayashi;P. Laguna;E. Phinney;P. Mészáros;P. Mészáros
DOI: 10.1088/2041-8205/734/2/l33
发表时间: 2011-04
期刊: The Astrophysical Journal Letters
影响因子: --
作者:
L. Shao;Fu-Wen Zhang;Yizhong Fan;D. Wei
通讯作者: L. Shao;Fu-Wen Zhang;Yizhong Fan;D. Wei
DOI: 10.1046/j.1365-2966.2003.07105.x
发表时间: 2003-06
影响因子: 4.8
作者:
M. Cirasuolo;A. Celotti;M. Magliocchetti;L. Danese
通讯作者: M. Cirasuolo;A. Celotti;M. Magliocchetti;L. Danese
DOI: 10.1086/382670
发表时间: 2003-10
期刊: The Astrophysical Journal
影响因子: --
作者:
N. Vlahakis;A. Königl
通讯作者: N. Vlahakis;A. Königl
DOI: 10.1088/0004-637x/742/1/32
发表时间: 2011-05
期刊: The Astrophysical Journal
影响因子: --
作者:
J. Cannizzo;J. Cannizzo;E. Troja;G. Lodato
通讯作者: J. Cannizzo;J. Cannizzo;E. Troja;G. Lodato