Center for Astrophysics Research and Technologies Seminar Series
Southern Hemisphere Multi-wavelength Monitoring of Energetic and Peculiar Gamma-Ray Bursts
Presented by Aquib Moin, SA
In this talk, I will give an overview of an extensive and coordinated Southern Hemisphere program to carry out detailed studies of energetic GRBs with potentially long-lasting and peculiar afterglows using data from gamma-rays to radio observations. The program will rely on triggers/notifications of GRB detections by satellites as well as early analysis of data from robotic optical telescopes (Master, Watcher) and X-ray telescopes since it aims to target GRBs which exhibit a peculiar shallow decline/plateau phase in the early time afterglow, hinting on the possible longevity of the afterglow (e.g. Moin et al. 2013). The selected candidates will be followed-up with various South Hemisphere telescopes (ATCA, KAT-7, SALT, HESS) for multi-wavelength coverage. Data from Fermi and/or Swift will also be included in the study to build the full picture. This multi-wavelength study is aimed at decisively testing existing theories of long-lasting afterglow (e.g. energy injection, Wind/ISM transition) in turn attempting to establish a new classification of GRBs based on the actual astrophysical mechanisms playing a role in producing the observed afterglow and also getting clues on the true nature and type of the possible GRB progenitor / central engine at the heart of the main event. I will also present initial results from an ongoing multi-wavelength study of Fermi-LAT GRB 100414a as a test case for this campaign.
2:00 pm, Thursday, November 19, 2015
PAIS-2540, PAIS
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