Gravitational wave memory of gamma-ray burst jets

Norichika Sago, Kunihito Ioka, Takashi Nakamura, Ryo Yamazaki

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Gamma-ray bursts (GRBs) are now considered as relativistic jets. We analyze the gravitational waves from the acceleration stage of the GRB jets. We show that (i) the point mass approximation is not appropriate if the opening half-angle of the jet is larger than the inverse of the Lorentz factor of the jet; (ii) the gravitational waveform has many step function like jumps, and (iii) the practical DECIGO and BBO may detect such an event if the GRBs occur in the Local Group. We found that the light curve of GRBs and the gravitational waveform are anticorrelated so that the detection of the gravitational wave is indispensable to determine the structure of GRB jets.

Original languageEnglish
Article number104012
Pages (from-to)104012-1-104012-8
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume70
Issue number10
DOIs
Publication statusPublished - Nov 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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