Type Ia supernova Hubble diagrams with host galaxy photometric redshifts

• Published in: Journal of cosmology and astroparticle physics Vol. 2022; no. 10; pp. 65 - 104
• Main Authors: Ruhlmann-Kleider, V., Lidman, C., Möller, A.
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.10.2022; Institute of Physics (IOP)
• Subjects: Astrophysics; Bias; Contamination; Cosmology; Frequentist statistics; Galaxies; Light curve; Photometry; Physics; Red shift; Refitting; Sampling; Space telescopes; Statistical sampling techniques; supernova type Ia - standard candles; Supernovae; Uncertainty; Statistical sampling techniques; supernova type Ia - standard candles; Frequentist statistics

Systematic uncertainties associated to type Ia supernova (SN Ia) Hubble diagrams from photometrically selected samples using photometric SN host galaxy redshifts are investigated. The host redshift uncertainties and the contamination by core-collapse SNe are both addressed. As a test case, we use th...