Using Host Galaxy Photometric Redshifts to Improve Cosmological Constraints with Type Ia Supernovae in the LSST Era

We perform a rigorous cosmology analysis on simulated Type Ia supernovae (SNe Ia) and evaluate the improvement from including photometric host galaxy redshifts compared to using only the “ z spec ” subset with spectroscopic redshifts from the host or SN. We use the Deep Drilling Fields (∼50 deg 2 )...

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Veröffentlicht in:	The Astrophysical journal 2023-02, Vol.944 (2), p.212
Hauptverfasser:	Mitra, Ayan, Kessler, Richard, More, Surhud, Hlozek, Renee
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy & Astrophysics ASTRONOMY AND ASTROPHYSICS Astrophysics Bias Big Bang theory Calibration Celestial bodies Cosmic microwave background Cosmology Covariance matrix Curve fitting Dark energy Data analysis Figure of merit Galaxies Hubble diagram Photometry Red shift Simulation Space telescopes Stars & galaxies Supernovae Systematics Type Ia supernovae
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