伊朗伽玛射线暴的毫米观测

Gamma-ray Bursts: 15 Years of GRB Afterglows Pub Date : 2020-11-04 DOI:10.1051/EAS/1361045

A. Castro-Tirado, M. Bremer, J. Winters, Julio C. Tello, S. Pandey, A. U. Postigo, J. Gorosabel, S. Guziy, M. Jelínek, R. Sánchez-Ramírez, D. Pérez-Ramírez, J. M. C. Ceron

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引用次数: 0

摘要

自1997年以来，在我们探测到第一个毫米余晖之后，我们对70个GRB进行了跟踪，主要是使用IRAM高原de Bure干涉仪，可以被认为是IRAM遗留GRB样本。观测到66个3毫米的事件，其中19个被探测到(另外3个被边缘探测到)。在1 mm处随访32个grb，检测到6个。GRB余辉的红移在z = 0.03-8.3范围内，测量到的通量密度(在3毫米处)在0.25到60 mJy之间变化(但通常小于1.5 mJy)，第一次观测发生在GRB后1-2天左右。正向激波发射解释了观测结果，只有一个特例(z = 8.2的GRB 090423)需要反向激波发射。

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MILLIMETRE OBSERVATIONS OF GAMMA-RAY BURSTS AT IRAM

Since 1997, and following our detection of the first mm afterglow, we have followed-up 70 GRBs, mainly with the IRAMś Plateau de Bure Interferometer, what can be considered as the IRAM Legacy GRB Sample. 66 events were observed at 3 mm, with 19 of them being detected (with another 3 having marginal detections). 32 GRBs were followed up at 1 mm, with 6 of them being detected. Redshifts for the GRB afterglows lie in the range z = 0.03–8.3, with measured flux densities (at 3 mm) varying between 0.25 and 60 mJy (but usually <1.5 mJy) with first observations taking place around 1–2 days after the GRB. Forward shock emission expleains the observations with the exception of one particular case (GRB 090423 at z = 8.2) for which reverse shock emission is required.

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Gamma-ray Bursts: 15 Years of GRB Afterglows

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