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

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posted on 18.05.2020, 16:56 by AJ Levan, NR Tanvir, SB Cenko, DA Perley, K Wiersema, JS Bloom, AS Fruchter, ADEU Postigo, PT O'Brien, N Butler, AJ van der Horst, G Leloudas, AN Morgan, K Misra, GC Bower, J Farihi, RL Tunnicliffe, M Modjaz, JM Silverman, J Hjorth, C Thöne, A Cucchiara, JM Cerón, AJ Castro-Tirado, JA Arnold, M Bremer, JP Brodie, T Carroll, MC Cooper, PA Curran, RM Cutri, J Ehle, D Forbes, J Fynbo, J Gorosabel, J Graham, DI Hoffman, S Guziy, P Jakobsson, A Kamble, T Kerr, MM Kasliwal, C Kouveliotou, D Kocevski, NM Law, PE Nugent, EO Ofek, D Poznanski, RM Quimby, E Rol, AJ Romanowsky, R Sánchez-Ramírez, S Schulze, N Singh, L van Spaandonk, RL Starling, RG Strom, JC Tello, O Vaduvescu, PJ Wheatley, RA Wijers, JM Winters, D Xu
Variable x-ray and γ-ray emission is characteristic of the most extreme physical processes in the universe. We present multiwavelength observations of a unique γ-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 γ-ray burst, whereas its peak luminosity was ∼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.

History

Citation

Science, 2011, 333 (6039), pp. 199-202

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomy

Version

AM (Accepted Manuscript)

Published in

Science

Volume

333

Issue

6039

Pagination

199-202

Publisher

American Association for the Advancement of Science

eissn

1095-9203

Acceptance date

08/06/2011

Copyright date

2011

Available date

16/06/2011

Publisher version

https://science.sciencemag.org/content/333/6039/199

Language

eng

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