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The long-lived UV "plateau" of SN 2012aw

Bayless, AJ; Pritchard, TA; Roming, PWA; Kuin, P; Brown, PJ; Botticella, MT; Dall'Ora, M; ... Fraser, M; + view all (2013) The long-lived UV "plateau" of SN 2012aw. Astrophysical Journal Letters , 764 (1) 10.1088/2041-8205/764/1/L13. Green open access

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Abstract

Observations with the Swift UV Optical Telescope have unambiguously uncovered for the first time a long-lived, UV "plateau" in a Type II-P supernova (SN). Although this flattening in slope is hinted at in a few other SNe, due to its proximity and minimal line-of-sight extinction, SN 2012aw has afforded the first opportunity to clearly observe this UV plateau. The observations of SN 2012aw revealed all Swift UV and u-band light curves initially declined rapidly, but 27 days after the explosion the light curves flattened. Some possible sources of the UV plateau are the same thermal process that causes the optical plateau, heating from radioactive decay, or a combination of both processes. © 2013. The American Astronomical Society. All rights reserved.

Type: Article
Title: The long-lived UV "plateau" of SN 2012aw
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/2041-8205/764/1/L13
Publisher version: http://dx.doi.org/10.1088/2041-8205/764/1/L13
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Supernovae: general—supernovae: individual (SN 2012aw)
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/1396249
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