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SN2012ab: A Peculiar Type IIn Supernova with Aspherical Circumstellar Material
Christopher Bilinski, Nathan Smith, G. Grant Williams +18
We present photometry, spectra, and spectropolarimetry of supernova (SN) 2012ab, mostly obtained over the course of days after discovery. SN 2012ab was a Type IIn (SN II…
Abundance Tomography of Type Iax SN 2011ay with TARDIS
Barnabas Barna, Tamas Szalai, Markus Kromer +5
We present a detailed spectral analysis of Type Iax SN 2011ay. Our spectra cover epochs between -3 and +19 days with respect to the maximum light in B-band. This time range allows…
Two transitional type~Ia supernovae located in the Fornax cluster member NGC 1404: SN 2007on and SN 2011iv
C. Gall, M. D. Stritzinger, C. Ashall +26
We present an analysis of ultraviolet (UV) to near-infrared observations of the fast-declining Type Ia supernovae (SNe Ia) 2007on and 2011iv, hosted by the Fornax cluster member NG…
Connecting the progenitors, pre-explosion variability, and giant outbursts of luminous blue variables with Gaia16cfr
Charles D. Kilpatrick, Ryan J. Foley, Maria R. Drout +10
We present multi-epoch, multi-colour pre-outburst photometry and post-outburst light curves and spectra of the luminous blue variable (LBV) outburst Gaia16cfr discovered by the Gai…
Searching for the expelled hydrogen envelope in Type I supernovae via late-time H-alpha emission
J. Vinko, D. Pooley, J. M. Silverman +6
We report the first results from our long-term observational survey aimed at discovering late-time interaction between the ejecta of hydrogen-poor Type I supernovae and the hydroge…