Abstract Details
| Name: Shabnam Iyyani Affiliation: Inter university centre for astronomy and astrophysics Conference ID: ASI2018_1576 Title : Gamma ray burst: A window to the extraordinary and extreme Universe Authors and Co-Authors : Shabnam Iyyani IUCAA, Pune Abstract Type : Invited Abstract Category : Plenary Abstract : Gamma-ray bursts (GRBs) are the most intense and energetic transients occurring in the cosmos at cosmological distances. They are classified into two: short (< 2s) and long (>2s) GRBs, which have different progenitors such as neutron star (NS) - neutron star/ neutron star - black hole (BH) mergers and hypernovae respectively.  Short GRBs are the electromagnetic counterparts to the gravity wave detections made for NS -NS mergers and may be even for NS -BH mergers. In my talk, I will give a general overview of the study of GRBs and will particularly focus on one of the long standing questions of what is the radiation mechanism underlying the observed emission - synchrotron emission versus photospheric emission models. In addition, I will also discuss the key role of polarisation measurements in helping to resolve this issue. |