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An extremely luminous outburst from a relativistic tidal disruption event

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Levan, Andrew J. (2011) An extremely luminous outburst from a relativistic tidal disruption event. Proceedings of the International Astronomical Union, Vol.7 (No.S285). pp. 349-351. doi:10.1017/S1743921312001032

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Official URL: http://dx.doi.org/10.1017/S1743921312001032

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Abstract

We present the discovery and monitoring observations of Swift 1644+57, a luminous outburst from the nucleus of a galaxy at z = 0.35. Precise astrometry ties the source to within a few hundred parsecs of the nucleus of its host, and suggests a link to the massive black hole that probably resides there. The high luminosity and rapid variability are strongly indicative of a beamed source. We suggest that this event is best explained by the tidal disruption of a passing star by the supermassive black hole, which simultaneously created a powerful panchromatic explosion. However, it has also been proposed that such events may be related to the core collapse of massive stars. Future observations of a sample of similar events, focussing on their locations within the hosts, should distinguish in a straightforward manner between the two proposals.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
Journal or Publication Title: Proceedings of the International Astronomical Union
Publisher: Cambridge University Press
ISSN: 1743-9213
Official Date: 2011
Dates:
DateEvent
2011Published
Volume: Vol.7
Number: No.S285
Page Range: pp. 349-351
DOI: 10.1017/S1743921312001032
Status: Peer Reviewed
Publication Status: Published
Description:

A. J. Levan on behalf of a larger collaboration

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