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작성자 CQUeST 날짜 2017-09-12
제목 [Seminar] Sep. 13 (Wed), 4:30pm, Prof. Bogeun Gwak (Sejong Univ)
Date-Time: Sep. 13 (Wed), 4:30pm

Place: R1029

Speaker: Prof. Bogeun Gwak (Sejong Univ)

Title: Upper Bound of Radiation Energy under Collision of Hayward Black Holes

Abstract : We investigate the spin interaction and the gravitational radiation

thermally allowed in a head-on collision of two rotating Hayward black

holes. If one black hole is assumed to be considerably smaller than

the other, the potential of the spin interaction can be analytically

obtained and is dependent on the alignment of angular momenta of the

black holes. For the collision of massive black holes, the

gravitational radiation is numerically obtained as the upper bound by

using the laws of thermodynamics. The regularity effect of the Hayward

black hole tends to increase the radiation energy, but we can limit

the effect by comparing the radiation energy with the gravitational

waves GW150914, GW151226, and GW170104.
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