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Gamma‐ray bursts and the structure of the Galactic halo
Author(s) -
PODSIADLOWSKI PHILIPP,
REES MARTIN J,
RUDERMAN MALVIN
Publication year - 1995
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1995.tb17545.x
Subject(s) - physics , gamma ray burst , astrophysics , halo , galactic halo , sky , neutron star , stars , astronomy , disc , isotropy , galaxy , galaxy formation and evolution , optics
We have systematically investigated Galactic models for classical gammaray bursts (GRBs) in which gamma‐ray bursters are ejected from the Galactic disk. It is relatively easy to construct models in which the predicted GRB sky distribution is isotropic and consistent with the present BATSE data if the outer halo is not spherically symmetric. The bursters must receive a velocity kick larger than ∼ 600–700 km s −1 at birth and remain active bursters for at least 10 9 yr. We suggest strongly magnetized neutron stars with magnetic fields of order 10 15 G as possible sources of classical GRBs.