supernovae: individual: SN 1997cy SN 1999E SN 2002ic SN 2005gj SN 2008J SN 2008cg SN 2011jb CSS120327:110520-015205 PTF11kx PTF10htz PTF10iuf PTF10yni PTF11dsb PTF11hzx PTF12efc

Type Ia Supernovae Strongly Interacting with Their Circumstellar Medium

Owing to their utility for measurements of cosmic acceleration, Type Ia supernovae (SNe Ia) are perhaps the best-studied class of SNe, yet the progenitor systems of these explosions largely remain a mystery. A rare subclass of SNe Ia shows evidence …