Collapsar model for the central engine of gamma ray bursts

3^rd International Conference on High Energy Physics

December 11-12, 2017 | Rome, Italy

Sachiko Tsuruta

Montana State University, USA

Keynote: J Astrophys Aerospace Technol

Abstract :

Gamma ray bursts (GRB) are ultra-luminous events occurring throught the universe, which flood an almost dark gamma-ray sky for a short period of time, a few to several hundred seconds. The currently accepted interpretation of this phenomenon is that a few solar rest mass worth of gravitational energy is released in a very short period in very small regions in an enormous explosion. It is caused by either the merger of two compact objects or collapse of a massive star. I will review the latter case, generally known as a collapser model of GRB, in my presentation.

Biography :

Sachiko Tsuruta received her PhD on her studies of neutron stars at Columbia University. She was awarded the 14th Marcel Grossamann Award mainly for her PhD thesis work, which predicted that a neutron star is observable before it was discovered. After Harvard University, NASA, Max Planck Institute, etc., she has been at Montana State University, Bozeman, Montana, USA. She served as a committee member (some as the chair) in many international conferences. She contributed to numerous conferences as an Invited Speaker and has published over 300 papers