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arXiv 1012.0641astro-ph.HEastro-ph.SR
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利用日冕光子卫星上的RT-2实验探测GRB 090618

Detection of GRB 090618 with RT-2 Experiment Onboard the Coronas-Photon Satellite

A. R. Rao, J. P. Malkar, M. K. Hingar, V. K. Agrawal, S. K. Chakrabarti, A. Nandi, D. Debnath, T. B. Kotoch, R. Sarkar, T. R. Chidambaram, P. Vinod, S. Sreekuma… 展开作者

A. R. Rao, J. P. Malkar, M. K. Hingar, V. K. Agrawal, S. K. Chakrabarti, A. Nandi, D. Debnath, T. B. Kotoch, R. Sarkar, T. R. Chidambaram, P. Vinod, S. Sreekumar, Y. D. Kotov, A. S. Buslov, V. N. Yurov, V. G. Tyshkevich, A. I. Arkhangelskij, R. A. Zyatkov, Sachindra Naik

摘要:

我们提出了一个从伽玛暴090618使用的RT-2实验的日冕光子卫星上的即时伽玛射线辐射的分析结果。GRB 090618显示出多个峰值,并进行了详细的研究的时间结构作为能量的函数。由于γ射线暴是以77度角入射到探测器轴,我们已经产生了适当的响应函数的探测器,以获得此γ射线暴的光谱。我们使用Swift BAT探测器的公开数据增强了这些结果,并表明组合光谱分析可以相当准确地测量光谱参数。我们还试图对各个峰值进行光谱和时序分析,并找到连续脉冲的脉冲发射特性发生系统变化的证据。特别地,我们发现,谱的峰值能量,E_p,被发现随时间单调减少,对于该伽玛暴的连续脉冲。

英文摘要:

We present the results of an analysis of the prompt gamma-ray emission from GRB 090618 using the RT-2 Experiment onboard the Coronas-Photon satellite. GRB 090618 shows multiple peaks and a detailed study of the temporal structure as a function of energy is carried out. As the GRB was incident at an angle of 77 degree to the detector axis, we have generated appropriate response functions of the detectors to derive the spectrum of this GRB. We have augmented these results using the publicly available data from the Swift BAT detector and show that a combined spectral analysis can measure the spectral parameters quite accurately. We also attempt a spectral and timing analysis of individual peaks and find evidence for a systematic change in the pulse emission characteristics for the successive pulses. In particular, we find that the peak energy of the spectrum, E_p, is found to monotonically decrease with time, for the successive pulses of this GRB.

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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