Incorporating Astrophysical Systematics into a Generalized Likelihood for Cosmology with Type Ia Supernovae

Kara A. Ponder, W. Michael Wood-Vasey, Andrew R. Zentner

Traditional cosmological inference using Type Ia supernovae (SNeIa) have used stretch- and color-corrected fits of SN Ia light curves and assumed a resulting fiducial mean and symm…