A complete sample of long bright Swift gamma ray bursts

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

来源：Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences, 2013, 371(1992): 20120235.

DOI：10.1098/rsta.2012.0235

• gamma ray bursts
• complete sample
• luminosity function
• gamma ray burst correlations
• dark bursts

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 spectral-energy correlations and the nature of dark bursts.

• 出版日期2013-6-13