We present constraints on cosmological parameters from the Pantheon+ analysis of 1701 light curves of 1550 distinct Type Ia supernovae (SNe Ia) ranging in redshift from z= 0.001 to …
Abstract The standard Λ Cold Dark Matter cosmological model provides a wonderful fit to current cosmological data, but a few statistically significant tensions and anomalies were …
K Said, M Colless, C Magoulas… - Monthly Notices of …, 2020 - academic.oup.com
Measurement of peculiar velocities by combining redshifts and distance indicators is a powerful way to measure the growth rate of a cosmic structure and test theories of gravity at …
JA Cowell, S Dhawan… - Monthly Notices of the …, 2023 - academic.oup.com
The assumption of isotropy–that the Universe looks the same in all directions on large scales–is fundamental to the standard cosmological model. It is therefore critical to …
G Taylor, DO Jones, B Popovic… - Monthly Notices of …, 2023 - academic.oup.com
For the past decade, SALT2 has been the most common model used to fit Type Ia supernova (SN Ia) light curves for dark energy analyses. Recently, the SALT3 model was released …
ABSTRACT Type Ia supernovae (SNe Ia) in the nearby Hubble flow are excellent distance indicators in cosmology. The Zwicky Transient Facility (ZTF) has observed a large sample of …
SM Ward, S Dhawan, KS Mandel… - Monthly Notices of …, 2023 - academic.oup.com
To reduce systematic uncertainties in Type Ia supernova (SN Ia) cosmology, the host galaxy dust law shape parameter, RV, must be accurately constrained. We thus develop a …
N Nicolas, M Rigault, Y Copin, R Graziani… - Astronomy & …, 2021 - aanda.org
The detailed nature of type Ia supernovae (SNe Ia) remains uncertain, and as survey statistics increase, the question of astrophysical systematic uncertainties arises, notably that …
The analysis of current and future cosmological surveys of Type Ia supernovae (SNe Ia) at high redshift depends on the accurate photometric classification of the SN events detected …