A Tale of Two Type Ia Supernovae: The fast-declining siblings SNe 2015bo and 1997cn

W. B. Hoogendam, C. Ashall, L. Galbany +18

We present optical and near-infrared photometric and spectroscopic observations of the fast-declining Type Ia Supernova (SN) 2015bo. SN 2015bo is under-luminous (M${}_B$ = -17.67 $\p…