activity
19962025
most citedObservational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

19.6k citations · 49.7k across the 248 of their papers we have counts for

collaborators

250 papers

astro-ph.HE2025★ 13 cited

JWST and Ground-based Observations of the Type Iax Supernovae SN 2024pxl and SN 2024vjm: Evidence for Weak Deflagration Explosions

Lindsey A. Kwok, Mridweeka Singh, Saurabh W. Jha +89

We present panchromatic optical near-infrared (NIR) mid-infrared (MIR) observations of the intermediate-luminosity Type Iax supernova (SN Iax) 2024pxl and the extremely low…

astro-ph.HE2024★ 1 cited

Analysis of optical spectroscopy and photometry of the type I X-ray bursting system UW CrB

M. R. Kennedy, P. Callanan, P. M. Garnavich +19

UW Coronae Borealis (UW CrB) is a low mass X-ray binary that shows both Type 1 X-ray and optical bursts, which typically last for 20 s. The system has a binary period of close to 2…

astro-ph.SR2023

Rapid Evolution of the White Dwarf Pulsar AR Scorpii

Peter Garnavich, Stephen B. Potter, David A. H. Buckley +4

Analysis of AR Sco optical light curves spanning nine years show a secular change in the relative amplitudes of the beat pulse pairs generated by the two magnetic poles of its rota…

astro-ph.SR2023

A Phenomenon Resembling Early Superhumps in a New SU UMa-Type Dwarf Nova with a 2-Hour Orbital Period

Rebecca Boyle, Colin Littlefield, Peter Garnavich +4

We investigate K2BS5, an optical transient that we identified in Campaign 13 of the Kepler/K2 archives by the "K2 Background Survey", and classify it as a new SU UMa-type dwarf nov…

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.SR2023

A Surprising Periodicity Detected During a Super-outburst of V844 Herculis by TESS

A. Greiveldinger, P. Garnavich, C. Littlefield +6

We identify a previously undetected periodicity at a frequency of 49.080.01 d (period of 29.340.01 minutes) during a super-outburst of V844 Her observed by TESS. V…