Gravitational collapse of a spherical star with heat flow as a possible energy mechanism of gamma-ray bursts

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dc.creatorChang, Zhe
dc.creatorGuan, Cheng-Bo
dc.creatorHuang, Chao-Guang
dc.creatorLi, Xin
dc.date2008-03-26
dc.date.accessioned2026-07-07T11:49:20Z
dc.date.available2026-07-07T11:49:20Z
dc.descriptionWe investigate the gravitational collapse of a spherically symmetric, inhomogeneous star, which is described by a perfect fluid with heat flow and satisfies the equation of state $p=ρ/3$ at its center. In the process of the gravitational collapsing, the energy of the whole star is emitted into space. And the remaining spacetime is a Minkowski one without a remnant at the end of the process. For a star with a solar mass and solar radius, the total energy emitted is at the order of $10^{54}$ {\rm erg}, and the time-scale of the process is about $8s$. These are in the typical values for a gamma-ray burst. Thus, we suggest the gravitational collapse of a spherical star with heat flow as a possible energy mechanism of gamma-ray bursts.
dc.description4 pages, 2 figures, to appear in Commun. Theor. Phys
dc.identifierhttps://arxiv.org/abs/0803.3661
dc.identifierhttp://arxiv.org/abs/0803.3661
dc.identifierCommun.Theor.Phys.50:271-274,2008
dc.identifierdoi:10.1088/0253-6102/50/1/52
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203201
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleGravitational collapse of a spherical star with heat flow as a possible energy mechanism of gamma-ray bursts
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