Brown, Peter; Kuin, Paul; Scalzo, Richard; Smitka, Miichael T; De Pasquale, Massimiliano; Holland, Stephen; Krisciunas, Kevin; Milne, P.; Wang, Lifan
Among Type Ia supernovae (SNe Ia), a class of overluminous objects exist whose ejecta mass is inferred to be larger than the canonical Chandrasekhar mass. We present and discuss the UV/optical photometric light curves, colors, absolute magnitudes, and spectra of three candidate Super-Chandrasekhar mass SNe - 2009dc, 2011aa, and 2012dn - observed with the Swift Ultraviolet/Optical Telescope. The light curves are at the broad end for SNe Ia, with the light curves of SN 2011aa being among the...[Show more]
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