Spectroscopic analysis of the strongly lensed SN~Encore: Constraints on cosmic evolution of Type Ia supernovae

S. Dhawan, J. D. R. Pierel, M. Gu +16

Strong gravitational lensing magnifies the light from a background source, allowing us to study these sources in detail. Here, we study the spectra of a $z=1.95$ lensed Type Ia s…