Signatures of Bimodality in Nebular Phase Type Ia Supernova Spectra: Indications of White Dwarf Collision Progenitors
Preprint published in 2019 by
P. J. Vallely,
M. A. Tucker 
,
B. J. Shappee,
J. S. Brown,
K. Z. Stanek,
C. S. Kochanek
,
B. J. Shappee,
J. S. Brown,
K. Z. Stanek,
C. S. Kochanek
