The BeppoSAX catalog of GRB X-ray afterglow observations
The BeppoSAX catalog of GRB X-ray afterglow observations
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DOI：
10.1051/0004-6361:20053950
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发表时间：
2005-07
影响因子：
6.5
通讯作者：
M. Pasquale;L. Piro;B. Gendre;L. Amati;L. A. Antonelli;E. Costa;M. Feroci;F. Frontera;L. Nicastro;P. Soffitta;J. I. Z. Inaf;Iasf Rome;Italy.;-INAF;Iasf Bologna;R. Observatory;U. Ferrara;Sron;Utrecht;Netherlands.;I. Palermo
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文献类型：
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作者：
M. Pasquale;L. Piro;B. Gendre;L. Amati;L. A. Antonelli;E. Costa;M. Feroci;F. Frontera;L. Nicastro;P. Soffitta;J. I. Z. Inaf;Iasf Rome;Italy.;-INAF;Iasf Bologna;R. Observatory;U. Ferrara;Sron;Utrecht;Netherlands.;I. Palermo
我们介绍BeppoSAX号卫星从发射卫星到使命结束期间观测到的X射线余辉目录。39次观测中的33次X射线余辉是根据它们的衰落行为安全地识别出来的。我们提取了所有可用余辉的连续参数（衰减指数，光谱指数，通量，吸收）。我们指出了X射线余辉光度与瞬发γ射线事件发射能量之间可能存在的相关性。我们没有检测到一个显着的喷流签名内的余辉，这意味着一个较低的限制光束的角度，也不是一个标准的能量释放时，X射线通量校正光束。我们的数据支持这样的假设，即爆发应该被星际介质而不是风环境所包围，并且这种环境应该是致密的。这可能是由位于爆发前体附近的终止冲击波解释的。我们最后指出，一些黑暗的爆发可能是由一个内在的事件微弱，而其他人可能被强烈吸收解释。
We present the catalog of X-ray afterglow observed by BeppoSAX from the launch of the satellite to the end of the mission. Thirty-three X-ray afterglows out of 39 observations were securely identified based on their fading behavior. We have extracted the continuum parameters (decay index, spectral index, flux, absorption) for all available afterglows. We point out a possible correlation between the X-ray afterglow luminosity and the energy emitted during the prompt γ -ray event. We do not detect a significant jet signature within the afterglows, implying a lower limit on the beaming angle, nor a standard energy release when X-ray fluxes are corrected for beaming. Our data support the hypothesis that the burst should be surrounded by an interstellar medium rather than a wind environment, and that this environment should be dense. This may be explained by a termination shock located near the burst progenitor. We finally point out that some dark bursts may be explained by an intrinsic faintness of the event, while others may be strongly absorbed.