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Sachiko Tsuruta

Sachiko Tsuruta

Montana State University, USA

Title: Collapsar model for the central engine of gamma ray bursts


Biography: Sachiko Tsuruta


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.