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Type Ibn Supernovae Show Photometric Homogeneity and Spectral Diversity at Maximum Light
Griffin Hosseinzadeh, Iair Arcavi, Stefano Valenti +34
Type Ibn supernovae (SNe) are a small yet intriguing class of explosions whose spectra are characterized by low-velocity helium emission lines with little to no evidence for hydrog…
Rising from the Ashes: Mid-Infrared Re-Brightening of the Impostor SN 2010da in NGC 300
Ryan M. Lau, Mansi M. Kasliwal, Howard E. Bond +16
We present multi-epoch mid-infrared (IR) photometry and the optical discovery observations of the "impostor" supernova (SN) 2010da in NGC 300 using new and archival Spitzer Space T…
An Intermediate Type Ia Supernova Between Normal And Super-Chandrasekhar
Yi Cao, J. Johansson, Peter E. Nugent +14
In this paper, we report observations of a peculiar Type Ia supernova iPTF13asv (a.k.a., SN2013cv) from the onset of the explosion to months after its peak. The early-phase spectra…