University of Hertfordshire

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  • 905645

    Accepted author manuscript, 3 MB, PDF document

  • Andrew Levan
  • Nial Tanvir
  • S.B. Cenko
  • D.A. Perley
  • K. Wiersema
  • J.S. Bloom
  • A.S. Fruchter
  • A. Postigo
  • O.T. O'Brien
  • N.R. Butler
  • A.J. van der Horst
  • G. Leloudas
  • A.N. Morgan
  • K. Misra
  • G.C. Bower
  • J. Farihi
  • R.L. Tunnicliffe
  • M. Modjaz
  • J.M. Silverman
  • J. Hjorth
  • And 43 others
  • C.C. Thone
  • A. Cucchiara
  • J.M.C. Ceron
  • A.J. Castro-Tirado
  • J.A. Arnold
  • M. Bremer
  • J.P. Brodie
  • T. Carroll
  • M.C. Cooper
  • P. Curran
  • R.M. Cutri
  • J. Ehle
  • D. Forbes
  • J. Fynbo
  • J. Gorosabel
  • J. Graham
  • D.I. Hoffman
  • S. Guziy
  • Pall Jakobsson
  • A.P. Kamble
  • T.H. Kerr
  • M.M. Kasliwal
  • C. Kouveliotou
  • D. Kocevski
  • N.M. Law
  • P. Nugent
  • E.O. Ofek
  • D. Poznanski
  • R.M. Quimby
  • E. Rol
  • A.J. Romanowsky
  • R. Sanchez-Ramirez
  • S. Schulze
  • N. Singh
  • Lieke Van Spaandonk
  • R.L. Starling
  • R.G. Strom
  • J.C. Tello
  • O. Vaduvescu
  • P.J. Wheatley
  • R.A.M.J. Wijers
  • J.M. Winters
  • D. Xu
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Original languageEnglish
Number of pages36
Pages (from-to)199-202
JournalScience
Journal publication date2011
Volume333
Issue6039
DOIs
Publication statusPublished - 2011

Abstract

Variable x-ray and gamma-ray emission is characteristic of the most extreme physical processes in the universe. We present multiwavelength observations of a unique gamma-ray-selected transient detected by the Swift satellite, accompanied by bright emission across the electromagnetic spectrum, and whose properties are unlike any previously observed source. We pinpoint the event to the center of a small, star-forming galaxy at redshift z = 0.3534. Its high-energy emission has lasted much longer than any gamma-ray burst, whereas its peak luminosity was similar to 100 times higher than bright active galactic nuclei. The association of the outburst with the center of its host galaxy suggests that this phenomenon has its origin in a rare mechanism involving the massive black hole in the nucleus of that galaxy.

Notes

Original article can be found at : http://www.sciencemag.org/ Copyright American Association for the Advancement of Science

ID: 321684