Observational difference between gamma and X-ray properties of optically dark and bright GRBs

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Using the discriminant analysis of the multivariate statistical analysis we compared the distribution of the physical quantities of the optically dark and bright GRBs, detected by the BAT and XRT on board of the Swift Satellite. We found that the GRBs having detected optical transients (OT) have systematically higher peak fluxes and lower HI column densities than those without OT.
Santa Fe proc

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Cosmology and Nongalactic Astrophysics, High Energy Astrophysical Phenomena

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http://salesiana.dossiersoluciones.com/handle/123456789/225415

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0903.5275
 http://arxiv.org/abs/0903.5275
 doi:10.1063/1.2943506

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arXiv