Improved Cosmological Constraints from New, Old, and Combined Supernova Data Sets
Improved Cosmological Constraints from New, Old, and Combined Supernova Data Sets
We present a new compilation of Type Ia supernovae (SNe Ia), a new dataset of low-redshift nearby-Hubble-flow SNe and new analysis procedures to work with these heterogeneous compilations. This ``Union'' compilation of 414 SN Ia, which reduces to 307 SNe after selection cuts, includes the recent large samples of SNe …