Supernovae Ia ejecta velocities and host galaxy environments: the role of survey-selection effects

L. V. Barkhudaryan, A. A. Hakobyan, M. H. Gevorgyan +6

The origin of the near-maximum-light Si II $\lambda$6355 velocity diversity among supernovae Ia (SNe Ia) remains uncertain. Previous studies have suggested that high-velocity (HV) and no…