New three-parameter correlation for gamma-ray bursts with a plateau phase in the afterglow
New three-parameter correlation for gamma-ray bursts with a plateau phase in the afterglow
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伽马射线暴与余辉平台相的新三参数相关性
DOI：
10.1051/0004-6361/201117754
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发表时间：
2011-03
期刊：
影响因子：
--
通讯作者：
Huang, Y. F.
中科院分区：
文献类型：
--
作者：
Xu, M.;Huang, Y. F.
目标。伽马射线暴(伽马射线暴)具有很强的优势，因为它们具有巨大的爆发能量、亮度和探测宇宙的高红移。几个有趣的伽玛暴光度关联已经被用来检验宇宙学模型。特别是，对于已知红移和余辉中的平台相的长伽玛暴的子样，发现了平台相的结束时间(在伽玛暴静止坐标系中)与相应的X射线光度之间的关系。在这里，我们加入各向同性γ射线能量释放作为第三个参数，以获得更紧密的三参数关联。方法：研究方法。我们重新分析了子样本，发现当我们考虑各向同性的γ射线能量释放时，存在着明显更紧密的关联。我们使用马尔可夫链蒙特卡罗技术来得到最优的拟合系数。结果。对于余辉中有明显平台相的伽玛暴，发现了一个新的三参数关联。Lx∝T−为0.87aE0.88γ，iso。此外，长持续时间伽玛暴和中持续时间伽玛暴符合相同的三参数关联方程。结论。我们认为，新的三参数关联符合这样的假设，即余辉中具有平台相的伽玛暴亚样与快速旋转的磁星的诞生有关，而平台相是由磁星的持续能量注入造成的。这表明，与伽玛暴有关的新诞生的毫秒磁星可能在宇宙中提供了一个很好的标准蜡烛。
Aims. Gamma ray bursts (GRBs) offer strong advantages because of their huge burst energies, luminosities, and high redshifts in probing the Universe. A few interesting luminosity correlations of GRBs have been used to test cosmology models. Especially, for a subsample of long GRBs with known redshifts and a plateau phase in the afterglow, a correlation between the end time of the plateau phase (in the GRB rest frame) and the corresponding X-ray luminosity has been found. Here, we add the isotropic γ-ray energy release as a third parameter to get a tighter three-parameter correlation. Methods. We reanalyzed the subsample and found that a significantly tighter correlation exists when we add the isotropic γ-ray energy release into the consideration. We used the Markov-chain Monte Carlo techniques to get the best-fit coefficients. Results. A new three-parameter correlation is found for the GRBs with an obvious plateau phase in the afterglow. The best fit correlation is found to be LX ∝ T −0.87 a E 0.88 γ,iso . Additionally, both long and intermediate duration GRBs are consistent with the same three-parameter correlation equation. Conclusions. We argue that the new three-parameter correlation is consistent with the hypothesis that the subsample of GRBs with a plateau phase in the afterglow is associated with the birth of rapidly rotating magnetars and that the plateau is due to the continuous energy-injection from the magnetar. It is suggested that the newly born millisecond magnetars associated with GRBs might provide a good standard candle in the Universe.
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DOI：
10.1111/j.1365-2966.2008.14054.x
发表时间：
2008-11
影响因子：
4.8
作者：
S. Dall’Osso;S. Shore;L. Stella
通讯作者：
S. Dall’Osso;S. Shore;L. Stella
DOI：
10.1086/320255
发表时间：
2000-11
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
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通讯作者：
Bing Zhang;P. Mészáros
DOI：
10.1088/0004-637x/690/2/l118
发表时间：
2008-10
期刊：
The Astrophysical Journal
影响因子：
--
作者：
R. Yamazaki
通讯作者：
R. Yamazaki
DOI：
10.1088/0004-637x/736/1/7
发表时间：
2011-05
期刊：
The Astrophysical Journal
影响因子：
--
作者：
A. Cucchiara;A. Cucchiara;A. Cucchiara;A. Levan;D. Fox;N. Tanvir;T. Ukwatta;T. Ukwatta;E. Berger
通讯作者：
A. Cucchiara;A. Cucchiara;A. Cucchiara;A. Levan;D. Fox;N. Tanvir;T. Ukwatta;T. Ukwatta;E. Berger
DOI：
10.1088/0004-637x/730/2/135
发表时间：
2011-01
期刊：
The Astrophysical Journal
影响因子：
--
作者：
M. Dainotti;V. Cardone;S. Capozziello;M. Ostrowski;R. Willingale
通讯作者：
M. Dainotti;V. Cardone;S. Capozziello;M. Ostrowski;R. Willingale