Looking for gravitational lensing signals in the Fermi GRBs

Details Looking for gravitational lensing signals in the Fermi GRBs Looking for gravitational lensing signals in the Fermi GRBs

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1358....5b&link_type=abstract

GAMMA RAY BURSTS 2010. AIP Conference Proceedings, Volume 1358, pp. 5-8 (2011).

Physics

Gravitational Lenses, Brightness, Mass, Photons, Gravitational Lenses And Luminous Arcs, Magnitudes And Colors, Luminosities, Mass And Mass Distribution, Photons

Scientific paper

We've analyzed the Fermi high time resolution GRB light curves' autocorrelation function looking for gravitational lens effects. The theoretical amplification-time delay function was applied with a photon count S/N approximation to determine the optimal photon binning. We conclude that during the lens signal search among the Fermi data the usual linearity based techniques (e.g. matched filters, FIR filtering, Bayes blocks, autocorrelation function) are sub-optimal. Only the short and very bright GRBs can be the plausible candidates of these detection techniques.

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