Gendre 2008 Possible standard candle for infrared afterglow

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arXiv:0810.2893 [ps, pdf, other]

Title: Gamma Ray burst afterglows in the infrared: a standard candle?

Authors: B. Gendre (1), S. Pelisson (1), M. Boer (2), S. Basa (1), A. Mazure ((1) LAM/CNRS/Universite de Provence, (2) OHP/CNRS)

Comments: 4 pages, 6 color figures. Accepted for publication as a Letter in A&A

Subjects: Astrophysics (astro-ph)

Clustering in the luminosity of the afterglows of gamma-ray burst has been reported in the optical and X-ray. We investigate the possibility that a clustering in the luminosity of the afterglows of gamma-ray burst exists in near infrared (J, H, K bands). We use observations of events occurring from 1997 to the end of 2007. We correct the gamma-ray burst afterglow light curve for distance effect and time dilation, and replace all light curves to a common distance of z=1. We used only observations of signal emitted in the near infrared (in the burst frame). We observe a clustering identical to the one observed in optical and similar to the one observed in X-ray. We thus confirm the previous works made in optical. We set a constraint on the total energy of the fireball.