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Early ultraviolet emission in the Type Ia supernova LSQ12gdj: No evidence for ongoing shock interaction

Scalzo, Richard; Childress, Michael; Tucker , Bradley; Yuan, Fang; Schmidt, Brian; Brown, Peter; Contreras, Carlos; Morrell, N; Hsiao, E Y; Burns, Christopher; Phillips, Mark; Campillay, A; Gonzalez, Carlos; Krisciunas, Kevin; Stritzinger, M; Graham, Melissa L

Description

We present photospheric-phase observations of LSQ12gdj, a slowly declining, UV-bright Type Ia supernova. Classified well before maximum light, LSQ12gdj has extinction-corrected absolute magnitude MB = -19.8, and pre-maximum spectroscopic evolution similar to SN 1991T and the super-Chandrasekhar-mass SN 2007if. We use ultraviolet photometry from Swift, ground-based optical photometry, and corrections from a near-infrared photometric template to construct the bolometric (1600-23 800 Å) light...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/75941
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stu1723

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