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arxiv: 1311.5254 · v3 · pith:5LTGY73Mnew · submitted 2013-11-20 · 🌌 astro-ph.HE

GRB 130427A: a Nearby Ordinary Monster

A. Maselli , A. Melandri , L. Nava , C. G. Mundell , N. Kawai , S. Campana , S. Covino , J. R. Cummings
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G. Cusumano P. A. Evans G. Ghirlanda G. Ghisellini C. Guidorzi S. Kobayashi P. Kuin V. La Parola V. Mangano S. Oates T. Sakamoto M. Serino F. Virgili B. -B. Zhang S. Barthelmy A. Beardmore M. G. Bernardini D. Bersier D. Burrows G. Calderone M. Capalbi J. Chiang P. D'Avanzo V. D'Elia M. De Pasquale D. Fugazza N. Gehrels A. Gomboc R. Harrison H. Hanayama J. Japelj J. Kennea D. Kopac C. Kouveliotou D. Kuroda A. Levan D. Malesani F. Marshall J. Nousek P. O'Brien J. P. Osborne C. Pagani K. L. Page M. Page M. Perri T. Pritchard P. Romano Y. Saito B. Sbarufatti R. Salvaterra I. Steele N. Tanvir G. Vianello B. Wiegand K. Wiersema Y. Yatsu T. Yoshii G. Tagliaferri
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classification 🌌 astro-ph.HE
keywords grbsgamma-rayuniverseafterglowbandbecauseburstbursts
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Long-duration Gamma-Ray Bursts (GRBs) are an extremely rare outcome of the collapse of massive stars, and are typically found in the distant Universe. Because of its intrinsic luminosity ($L\sim 3 \times 10^{53}$ erg s$^{-1}$) and its relative proximity ($z=0.34$), GRB 130427A was a unique event that reached the highest fluence observed in the gamma-ray band. Here we present a comprehensive multiwavelength view of GRB 130427A with Swift, the 2-m Liverpool and Faulkes telescopes and by other ground-based facilities, highlighting the evolution of the burst emission from the prompt to the afterglow phase. The properties of GRB 130427A are similar to those of the most luminous, high-redshift GRBs, suggesting that a common central engine is responsible for producing GRBs in both the contemporary and the early Universe and over the full range of GRB isotropic energies.

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