An extremely luminous panchromatic outburst from the nucleus of a distant galaxy

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. HjorthC.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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    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.
    Original languageEnglish
    Pages (from-to)199-202
    Number of pages36
    JournalScience
    Volume333
    Issue number6039
    DOIs
    Publication statusPublished - 2011

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