activity
20022023
most citedA 2.4% Determination of the Local Value of the Hubble Constant

2k citations · 40.5k across the 338 of their papers we have counts for

collaborators

340 papers

astro-ph.SR2023★ 2 cited

Keck Infrared Transient Survey I: Survey Description and Data Release 1

S. Tinyanont, R. J. Foley, K. Taggart +35

We present the Keck Infrared Transient Survey (KITS), a NASA Key Strategic Mission Support program to obtain near-infrared (NIR) spectra of astrophysical transients of all types, a…

astro-ph.HE2023

Ground-based and JWST Observations of SN 2022pul: I. Unusual Signatures of Carbon, Oxygen, and Circumstellar Interaction in a Peculiar Type Ia Supernova

Matthew R. Siebert, Lindsey A. Kwok, Joel Johansson +79

Nebular-phase observations of peculiar Type Ia supernovae (SNe Ia) provide important constraints on progenitor scenarios and explosion dynamics for both these rare SNe and the more…

astro-ph.HE2023★ 5 cited

SN 2022joj: A Potential Double Detonation with a Thin Helium shell

E. Padilla Gonzalez, D. A. Howell, G. Terreran +34

We present photometric and spectroscopic data for SN 2022joj, a nearby peculiar Type Ia supernova (SN Ia) with a fast decline rate ( mag). SN 2022joj shows exce…

astro-ph.HE2023★ 25 cited

Ground-based and JWST Observations of SN 2022pul: II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type-Ia Supernova

Lindsey A. Kwok, Matthew R. Siebert, Joel Johansson +78

We present an analysis of ground-based and JWST observations of SN~2022pul, a peculiar "03fg-like" (or "super-Chandrasekhar") Type Ia supernova (SN Ia), in the nebular phase at 338…

astro-ph.SR2023★ 21 cited

Type II-P Supernova Progenitor Star Initial Masses and SN 2020jfo: Direct Detection, Light Curve Properties, Nebular Spectroscopy, and Local Environment

Charles D. Kilpatrick, Luca Izzo, Rory O. Bentley +23

We present optical, ultraviolet, and infrared data of the type II supernova (SN II) 2020jfo at 14.5 Mpc. This wealth of multiwavelength data allows to compare different metrics com…

astro-ph.SR2023★ 96 cited

SN2023ixf in Messier 101: A Variable Red Supergiant as the Progenitor Candidate to a Type II Supernova

Charles D. Kilpatrick, Ryan J. Foley, Wynn V. Jacobson-Galán +15

We present pre-explosion optical and infrared (IR) imaging at the site of the type II supernova (SN II) 2023ixf in Messier 101 at 6.9 Mpc. We astrometrically registered a ground-ba…