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Early observations of the nearby type Ia supernova SN 2015F
R. Cartier, M. Sullivan, R. Firth +25
We present photometry and time-series spectroscopy of the nearby type Ia supernova (SN Ia) SN 2015F over days to days relative to maximum light, obtained as part of the…
The Superluminous Transient ASASSN-15lh as a Tidal Disruption Event from a Kerr Black Hole
G. Leloudas, M. Fraser, N. C. Stone +47
When a star passes within the tidal radius of a supermassive black hole, it will be torn apart. For a star with the mass of the Sun () and a non-spinning black hole with a…
Abundance stratification in Type Ia supernovae - V. SN 1986G bridging the gap between normal and subluminous SNe Ia
C. Ashall, P. A. Mazzali, E. Pian +1
A detailed spectroscopic analysis of SN 1986G has been performed. SN 1986G `bridges the gap' between normal and sub luminous type Ia supernova (SNe Ia). The abundance tomography te…
Luminosity distributions of Type Ia Supernovae
Chris Ashall, Paolo Mazzali, Michele Sasdelli +1
We have assembled a dataset of 165 low redshift, 0.06, publicly available type Ia supernovae (SNe Ia). We produce maximum light magnitude ( and ) distributions of…
Breaking the color-reddening degeneracy in type Ia supernovae
M. Sasdelli, E. E. O. Ishida, W. Hillebrandt +3
A new method to study the intrinsic color and luminosity of type Ia supernovae (SNe Ia) is presented. A metric space built using principal component analysis (PCA) on spectral seri…