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arXiv 0912.3928astro-ph.CO
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费米GRB数据中引力透镜效应的研究

A search for gravitational lensing effects in Fermi GRB data

P. Veres, Z. Bagoly, I. Horvath, A. Meszaros, L. G. Balazs

摘要:

当伽玛射线暴追踪高z宇宙时,有一个不可忽略的可能性,即透镜效应会印在爆发的光变曲线上。我们建议用互相关方法寻找透镜候选者,通过观察来自天空同一部分的几天到几年的爆发。我们寻找相似之处,并假设一个奇异等温球(SIS)模型的镜头。一对透镜将使我们能够限制透镜物体的质量。我们的搜索没有发现任何引力透镜事件。

英文摘要:

As GRBs trace the high-z Universe, there is a non-negligible probability of a lensing effect being imprinted on the lightcurves of the bursts. We propose to search for lensed candidates with a cross-correlation method, by looking at bursts days to years apart coming from the same part of the sky. We look for similarities and hypothesize a Singular Isothermal Sphere (SIS) model for the lens. A lensed pair would enable us to constrain the mass of the lensing object. Our search did not reveal any gravitationally lensed events.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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