A search for gravitational lensing effects in Fermi GRB data
Cosmology and Nongalactic Astrophysics
2009-12-22 v1
Abstract
As GRBs trace the high-z Universe, there is a non-negligible probability of a lensing effect being imprinted on the lightcurves of the bursts. We propose to search for lensed candidates with a cross-correlation method, by looking at bursts days to years apart coming from the same part of the sky. We look for similarities and hypothesize a Singular Isothermal Sphere (SIS) model for the lens. A lensed pair would enable us to constrain the mass of the lensing object. Our search did not reveal any gravitationally lensed events.
Cite
@article{arxiv.0912.3928,
title = {A search for gravitational lensing effects in Fermi GRB data},
author = {P. Veres and Z. Bagoly and I. Horvath and A. Meszaros and L. G. Balazs},
journal= {arXiv preprint arXiv:0912.3928},
year = {2009}
}
Comments
2009 Fermi Symposium - to appear in eConf Proceedings C091122