Improving the Determination of Supernova Cosmological Redshifts by Using Galaxy Groups

Improving the Determination of Supernova Cosmological Redshifts by Using Galaxy Groups

At the low-redshift end ( z < 0.05) of the Hubble diagram with Type Ia Supernovae (SNe Ia), the contribution to Hubble residual scatter from peculiar velocities (PVs) is of similar size to that due to the limitations of the standardization of the SN Ia light curves. A way to improve the redshift...

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Bibliographic Details
Main Authors: Erik R. Peterson, Bastien Carreres, Anthony Carr, Daniel Scolnic, Ava Bailey, Tamara M. Davis, Dillon Brout, Cullan Howlett, David O. Jones, Adam G. Riess, Khaled Said, Georgie Taylor
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal
Subjects:
Cosmology
Galaxy groups
Type Ia supernovae
Online Access:https://doi.org/10.3847/1538-4357/ada285
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