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arXiv · 0912.3928

A search for gravitational lensing effects in Fermi GRB data

P. Veres·Z. Bagoly·I. Horvath·A. Meszaros·L. G. Balazs
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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.

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P. Veres, Z. Bagoly, I. Horvath, A. Meszaros, L. G. Balazs. 2009-12-19. A search for gravitational lensing effects in Fermi GRB data. https://arxiv.org/abs/0912.3928

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