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

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        Author
        Levan, Andrew
        Tanvir, Nial
        Cenko, S.B.
        Perley, D.A.
        Wiersema, K.
        Bloom, J.S.
        Fruchter, A.S.
        Postigo, A.
        O'Brien, O.T.
        Butler, N.R.
        van der Horst, A.J.
        Leloudas, G.
        Morgan, A.N.
        Misra, K.
        Bower, G.C.
        Farihi, J.
        Tunnicliffe, R.L.
        Modjaz, M.
        Silverman, J.M.
        Hjorth, J.
        Thone, C.C.
        Cucchiara, A.
        Ceron, J.M.C.
        Castro-Tirado, A.J.
        Arnold, J.A.
        Bremer, M.
        Brodie, J.P.
        Carroll, T.
        Cooper, M.C.
        Curran, P.
        Cutri, R.M.
        Ehle, J.
        Forbes, D.
        Fynbo, J.
        Gorosabel, J.
        Graham, J.
        Hoffman, D.I.
        Guziy, S.
        Jakobsson, Pall
        Kamble, A.P.
        Kerr, T.H.
        Kasliwal, M.M.
        Kouveliotou, C.
        Kocevski, D.
        Law, N.M.
        Nugent, P.
        Ofek, E.O.
        Poznanski, D.
        Quimby, R.M.
        Rol, E.
        Romanowsky, A.J.
        Sanchez-Ramirez, R.
        Schulze, S.
        Singh, N.
        Van Spaandonk, Lieke
        Starling, R.L.
        Strom, R.G.
        Tello, J.C.
        Vaduvescu, O.
        Wheatley, P.J.
        Wijers, R.A.M.J.
        Winters, J.M.
        Xu, D.
        Attention
        2299/6258
        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.
        Publication date
        2011
        Published in
        Science
        Published version
        https://doi.org/10.1126/science.1207143
        Other links
        http://hdl.handle.net/2299/6258
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