Affordable Access

Access to the full text

Search for strong gravitational lensing effect in the current GRB data of BATSE

Authors
  • Li, Chun-Yu
  • Li, Li-Xin
Type
Published Article
Publication Date
Jun 11, 2014
Submission Date
Jun 11, 2014
Identifiers
DOI: 10.1007/s11433-014-5513-2
Source
arXiv
License
Yellow
External links

Abstract

Because gamma-ray bursts (GRBs) trace the high-z Universe, there is an appreciable probability for a GRB to be gravitational lensed by galaxies in the universe. Herein we consider the gravitational lensing effect of GRBs contributed by the dark matter halos in galaxies. Assuming that all halos have the singular isothermal sphere (SIS) mass profile in the mass range $10^{10} h^{-1} M_\odot < M < 2\times 10^{13} h^{-1}M_\odot $ and all GRB samples follow the intrinsic redshift distribution and luminosity function derived from the Swift LGRBs sample, we calculated the gravitational lensing probability in BATSE, Swift/BAT and Fermi/GBM GRBs, respectively. With an derived probability result in BATSE GRBs, we searched for lensed GRB pairs in the BATSE 5B GRB Spectral catalog. The search did not find any convincing gravitationally lensed events. We discuss our result and future observations for GRB lensing observation.

Report this publication

Statistics

Seen <100 times