234 citations · 2.4k across the 75 of their papers we have counts for
11 papers · 1 filter
SN2023ixf in Messier 101: the twilight years of the progenitor as seen by Pan-STARRS
Conor L. Ransome, V. Ashley Villar, Anna Tartaglia +28
The nearby type II supernova, SN2023ixf in M101 exhibits signatures of early-time interaction with circumstellar material in the first week post-explosion. This material may be the…
Minutes-duration Optical Flares with Supernova Luminosities
Anna Y. Q. Ho, Daniel A. Perley, Ping Chen +74
In recent years, certain luminous extragalactic optical transients have been observed to last only a few days. Their short observed duration implies a different powering mechanism…
Time-varying double-peaked emission lines following the sudden ignition of the dormant galactic nucleus AT2017bcc
E. J. Ridley, M. Nicholl, C. A. Ward +35
We present a pan-chromatic study of AT2017bcc, a nuclear transient that was discovered in 2017 within the skymap of a reported burst-like gravitational wave candidate, G274296. It…
GW190425: Pan-STARRS and ATLAS coverage of the skymap and limits on optical emission associated with FRB190425
S. J. Smartt, M. Nicholl, S. Srivastav +32
GW190425 is the second of only two binary neutron star (BNS) merger events to be significantly detected by the LIGO-Virgo- Kagra gravitational wave detectors. With a detection only…
AT2022aedm and a new class of luminous, fast-cooling transients in elliptical galaxies
M. Nicholl, S. Srivastav, M. D. Fulton +49
We present the discovery and extensive follow-up of a remarkable fast-evolving optical transient, AT2022aedm, detected by the Asteroid Terrestrial impact Last Alert Survey (ATLAS).…
SN 2022oqm: A Bright and Multi-peaked Calcium-rich Transient
S. Karthik Yadavalli, V. Ashley Villar, Luca Izzo +60
We present the photometric and spectroscopic evolution of SN 2022oqm, a nearby multi-peaked hydrogen- and helium-weak calcium-rich transient (CaRT). SN 2022oqm was detected 13.1 kp…
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…
A Precursor Plateau and Pre-Maximum [O II] Emission in the Superluminous SN2019szu: A Pulsational Pair-Instability Candidate
Aysha Aamer, Matt Nicholl, Anders Jerkstrand +29
We present a detailed study on SN2019szu, a Type I superluminous supernova at , that displayed unique photometric and spectroscopic properties. Pan-STARRS and ZTF forced p…
A UNIONS view of the brightest central galaxies of candidate fossil groups
Aline Chu, F. Durret, A. Ellien +10
The formation process of fossil groups (FGs) is still under debate, and large samples of such objects are still missing. The aim of this paper is to increase the sample of known FG…
Fast and Not-so-Furious: Case Study of the Fast and Faint Type IIb SN 2021bxu
Dhvanil D. Desai, Chris Ashall, Benjamin J. Shappee +36
We present photometric and spectroscopic observations and analysis of SN 2021bxu (ATLAS21dov), a low-luminosity, fast-evolving Type IIb supernova (SN). SN 2021bxu is unique, showin…
The optical light curve of GRB 221009A: the afterglow and the emerging supernova
M. D. Fulton, S. J. Smartt, L. Rhodes +46
We present extensive optical photometry of the afterglow of GRB~221009A. Our data cover \,days from the time of \textit{Swift} and \textit{Fermi} GRB detections. Photom…