A complete sample of long bright Swift gamma ray bursts

Gianpiero Tagliaferri, Ruben Salvaterra, Sergio Campana, Stefano Covino, Paolo D'Avanzo, Dino Fugazza, Giancarlo Ghirlanda, Gabriele Ghisellini, Andrea Melandri, Lara Nava, Boris Sbarufatti, Susanna Vergani

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Abstract

Complete samples are the basis of any population study. To this end, we selected a complete subsample of Swift long bright gamma ray bursts (GRBs). The sample, made up of 58 bursts, was selected by considering bursts with favourable observing conditions for ground-based follow-up observations and with the 15-150 keV 1 s peak flux above a flux threshold of 2.6 photons cm-2 s-1. This sample has a redshift completeness level higher than 90 per cent. Using this complete sample, we investigate the properties of long GRBs and their evolution with cosmic time, focusing in particular on the GRB luminosity function, the prompt emission spectralenergy correlations and the nature of dark bursts.

Original languageEnglish (US)
Article number20120235
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume371
Issue number1992
DOIs
StatePublished - Jun 13 2013

All Science Journal Classification (ASJC) codes

  • Mathematics(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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    Tagliaferri, G., Salvaterra, R., Campana, S., Covino, S., D'Avanzo, P., Fugazza, D., Ghirlanda, G., Ghisellini, G., Melandri, A., Nava, L., Sbarufatti, B., & Vergani, S. (2013). A complete sample of long bright Swift gamma ray bursts. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 371(1992), [20120235]. https://doi.org/10.1098/rsta.2012.0235