Physics
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pthph..87..879n&link_type=abstract
Progress of Theoretical Physics, Vol. 87, No. 4, pp. 879-890
Physics
7
Scientific paper
Recent observation of GRBs (Gamma Ray Burst) by GRO (Gamma Ray Observatory) raised puzzling questions on what GRBs are. At first look of the observational results, the galactic disk origin may be denied due to apparent isotropy and inhomogeneity of the distribution of the source. However, if one takes the lower bound for the quadrupole moment of the distribution of the sources, sources can still be anisotropic. That is, for example, a homogeneous spheroidal distribution of the sources with eccentricity of 0.7 can be compatible with the quadrupole moment and V/Vmax test within statistical error on 2 to 3sigma level. In view of tis situation, three possible origins of GRBs are discussed in this paper. They are1) Comets in Oort like clouds around old neutron stars in the galactic disk falling inside the tidal radius due to perturbation by passing molecular clouds of mass ~ 10(4}M_{sun) and the size ~ 10pc.2) Comets around old neutron stars in the galactic halo of size ~ 50 kpc which were ejected from globular clusters in their early phase of evolutions and/or were formed in the evolution of Population III stars.3) Coalescing binary neutron stars at a cosmological distance.We discuss the distribution, the event rate and the energetics for each model.
Murakami Yoichi
Nakamura Takashi
Shibazaki Noriaki
Yoshida Akio
No associations
LandOfFree
Some Comments on the Origin of Gamma Ray Bursts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Some Comments on the Origin of Gamma Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Some Comments on the Origin of Gamma Ray Bursts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1740884