activity
19982026
most citedThe Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch

825 citations · 7.7k across the 112 of their papers we have counts for

collaborators

113 papers

astro-ph.HE2026

Shortening the Baseline: Characterising Type Ia Supernovae Using

Joel M. Velasco, Paolo A. Mazzali, Christopher Ashall +8

An explorative study of Type Ia Supernovae (SNe Ia) light curves is presented. decline-rate metrics are used to evaluate alternative characterisations of light curve di…

astro-ph.CO2026

The host galaxies of 2003fg-like type Ia supernovae

Lluís Galbany, Chris Ashall, Jing Lu +19

SN~2003fg-like events are a peculiar type Ia supernova (SN~Ia) subtype characterized by broader light curves, higher near-infrared luminosities, and stronger carbon absorptions at…

astro-ph.CO2025

Carnegie Supernova Project: Fast-Declining Type Ia Supernovae as Cosmological Distance Indicators

M. M. Phillips, Syed A. Uddin, Christopher R. Burns +16

In this paper, the suitability of fast-declining Type Ia supernovae (SNe Ia) as cosmological standard candles is examined utilizing a Hubble Flow sample of 43 of these objects obse…

astro-ph.HE2024

1991T-like Supernovae

M. M. Phillips, C. Ashall, Peter J. Brown +23

Understanding the nature of the luminous 1991T-like supernovae is of great importance to supernova cosmology as they are likely to have been more common in the early universe. In t…

astro-ph.HE2024

Extrapolation of Type Ia Supernova Spectra into the Near-Infrared Using PCA

Anthony Burrow, E. Baron, Christopher R. Burns +14

We present a method of extrapolating the spectroscopic behavior of Type Ia supernovae (SNe Ia) in the near-infrared (NIR) wavelength regime up to 2.30 m using optical spectrosco…

astro-ph.CO2024★ 5 cited

Hawai'i Supernova Flows: A Peculiar Velocity Survey Using Over a Thousand Supernovae in the Near-Infrared

Aaron Do, Benjamin J. Shappee, John L. Tonry +15

We introduce the Hawai'i Supernova Flows project and present summary statistics of the first 1,217 astronomical transients observed, 668 of which are spectroscopically classified T…