93 citations · 934 across the 94 of their papers we have counts for
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The Type Ibn Supernova 2019kbj -- Indications for Diversity in Type Ibn Supernova Progenitors
Tom Ben-Ami, Iair Arcavi, Megan Newsome +9
Type Ibn supernovae (SNe) are a rare class of stellar explosions whose progenitor systems are not yet well determined. We present and analyze observations of the Type Ibn SN 2019kb…
SN 2022ann: A type Icn supernova from a dwarf galaxy that reveals helium in its circumstellar environment
K. W. Davis, K. Taggart, S. Tinyanont +64
We present optical and near-infrared (NIR) observations of the Type Icn supernova (SN Icn) 2022ann, the fifth member of its newly identified class of SNe. Its early optical spectra…
SN 2019ewu: A Peculiar Supernova with Early Strong Carbon and Weak Oxygen Features from a New Sample of Young SN Ic Spectra
Marc Williamson, Christian Vogl, Maryam Modjaz +17
With the advent of high cadence, all-sky automated surveys, supernovae (SNe) are now discovered closer than ever to their dates of explosion. However, young pre-maximum light follo…
Revealing the progenitor of SN 2021zby through analysis of the shock-cooling light curve
Qinan Wang, Patrick Armstrong, Yossef Zenati +34
We present early observations and analysis of the double-peaked Type IIb supernova (SN IIb) 2021zby. captured the prominent early shock cooling peak of SN 2021zby within the…
Near-Infrared and Optical Observations of Type Ic SN 2021krf: Luminous Late-time Emission and Dust Formation
Aravind P. Ravi, Jeonghee Rho, Sangwook Park +29
We present near-infrared (NIR) and optical observations of the Type Ic supernova (SN Ic) SN 2021krf obtained between days 13 and 259 at several ground-based telescopes. The NIR spe…
JWST Imaging of the Cartwheel Galaxy Reveals Dust Associated with SN 2021afdx
Griffin Hosseinzadeh, David J. Sand, Jacob E. Jencson +12
We present near- and mid-infrared (0.9-18 m) photometry of supernova (SN) 2021afdx, which was imaged serendipitously with the James Webb Space Telescope (JWST) as part of its Ea…
AT 2020wey and the class of faint and fast Tidal Disruption Events
Panos Charalampopoulos, Miika Pursiainen, Giorgos Leloudas +5
We present an analysis of the optical and UV properties of AT 2020wey, a faint and fast tidal disruption event (TDE) at 124.3 Mpc. The light curve of the object peaked at an absolu…
Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631
Y. -Z. Cai, A. Pastorello, M. Fraser +73
We present an observational study of the luminous red nova (LRN) AT\,2021biy in the nearby galaxy NGC\,4631. The field of the object was routinely imaged during the pre-eruptive st…
Panchromatic evolution of three luminous red novae: Forbidden hugs in pandemic times -- IV
A. Pastorello, G. Valerin, M. Fraser +77
We present photometric and spectroscopic data on three extragalactic luminous red novae (LRNe): AT2018bwo, AT2021afy, and AT2021blu. AT2018bwo was discovered in NGC45 (at 6.8 Mpc)…
The Diverse Properties of Type Icn Supernovae Point to Multiple Progenitor Channels
C. Pellegrino, D. A. Howell, G. Terreran +16
We present a sample of Type Icn supernovae (SNe Icn), a newly-discovered class of transients characterized by their interaction with H- and He-poor circumstellar material (CSM). Th…
Constraining the Progenitor System of the Type Ia Supernova 2021aefx
Griffin Hosseinzadeh, David J. Sand, Peter Lundqvist +25
We present high-cadence optical and ultraviolet light curves of the normal Type Ia supernova (SN) 2021aefx, which shows an early bump during the first two days of observation. This…
Low luminosity Type II supernovae -- IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class
G. Valerin, M. L. Pumo, A. Pastorello +20
Photometric and spectroscopic data for two Low Luminosity Type IIP Supernovae (LL SNe IIP) are presented. SN 2020cxd reaches a peak absolute magnitude = -13.90 0.05 m…
Weak Mass Loss from the Red Supergiant Progenitor of the Type II SN 2021yja
Griffin Hosseinzadeh, Charles D. Kilpatrick, Yize Dong +56
We present high-cadence optical, ultraviolet (UV), and near-infrared data of the nearby ( Mpc) Type II supernova (SN) 2021yja. Many Type II SNe show signs of interactio…
An elliptical accretion disk following the tidal disruption event AT 2020zso
T. Wevers, M. Nicholl, M. Guolo +25
[Abridged] We classify AT 2020zso as a TDE based on the blackbody evolution inferred from UV/optical photometric observations, and spectral line content and evolution. We identify…
SN 2020acat: A purr-fect example of a fast rising Type IIb Supernova
K. Medler, P. A. Mazzali, J. Teffs +31
The Ultra-Violet (UV) and Near Infrared (NIR) photometric and optical spectroscopic observations of SN 2020acat covering days after explosion are presented here. U…