Leveraging SN Ia spectroscopic similarity to improve the measurement of H 0

YS Murakami, AG Riess, BE Stahl… - … of Cosmology and …, 2023 - iopscience.iop.org
Recent studies suggest spectroscopic differences explain a fraction of the variation in Type
Ia supernova (SN Ia) luminosities after light-curve/color standardization. In this work,(i) we …

Cosmological results from the RAISIN survey: using Type Ia Supernovae in the near infrared as a novel path to measure the dark energy equation of state

DO Jones, KS Mandel, RP Kirshner… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract Type Ia supernovae (SNe Ia) are more precise standardizable candles when
measured in the near-infrared (NIR) than in the optical. With this motivation, from 2012 to …

SALT3-NIR: Taking the Open-source Type Ia Supernova Model to Longer Wavelengths for Next-generation Cosmological Measurements

JDR Pierel, DO Jones, WD Kenworthy… - The Astrophysical …, 2022 - iopscience.iop.org
A large fraction of Type Ia supernova (SN Ia) observations over the next decade will be in
the near-infrared (NIR), at wavelengths beyond the reach of the current standard light-curve …

The Dark Energy Survey Supernova Program results: type Ia supernova brightness correlates with host galaxy dust

C Meldorf, A Palmese, D Brout, R Chen… - Monthly Notices of …, 2023 - academic.oup.com
Cosmological analyses with type Ia supernovae (SNe Ia) often assume a single empirical
relation between colour and luminosity (β) and do not account for varying host-galaxy dust …

Constraining the SN Ia host galaxy dust law distribution and mass step: hierarchical BayeSN analysis of optical and near-infrared light curves

S Thorp, KS Mandel - Monthly Notices of the Royal Astronomical …, 2022 - academic.oup.com
We use the BayeSN hierarchical probabilistic SED model to analyse the optical–NIR
(BVriYJH) light curves of 86 Type Ia supernovae (SNe Ia) from the Carnegie Supernova …

Hawai 'i Supernova Flows: a peculiar velocity survey using over a Thousand Supernovae in the near-infrared

A Do, BJ Shappee, JL Tonry, RB Tully… - Monthly Notices of …, 2025 - academic.oup.com
We introduce the Hawai 'i Supernova Flows project and present summary statistics of the
first 1217 astronomical transients observed, 668 of which are spectroscopically classified …

Two-population Bayesian hierarchical model of Type Ia supernovae

R Wojtak, J Hjorth, JO Hjortlund - Monthly Notices of the Royal …, 2023 - academic.oup.com
The currently used standardization of Type Ia supernovae results in Hubble residuals whose
physical origin is unaccounted for. Here, we present a complete physical interpretation of the …

SN H0pe: The First Measurement of H0 from a Multiply Imaged Type Ia Supernova, Discovered by JWST

M Pascale, BL Frye, JDR Pierel, W Chen… - The Astrophysical …, 2025 - iopscience.iop.org
Abstract The first James Webb Space Telescope (JWST) Near InfraRed Camera imaging in
the field of the galaxy cluster PLCK G165. 7+ 67.0 (z= 0.35) uncovered a Type Ia supernova …

SICRET: Supernova Ia cosmology with truncated marginal neural Ratio EsTimation

K Karchev, R Trotta, C Weniger - Monthly Notices of the Royal …, 2023 - academic.oup.com
ABSTRACT Type Ia supernovae (SNe Ia), standardizable candles that allow tracing the
expansion history of the Universe, are instrumental in constraining cosmological …

Bird-Snack: Bayesian inference of dust law RV distributions using SN Ia apparent colours at peak

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 …