159 citations · 3.7k across the 140 of their papers we have counts for
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Light-Curve Structure and Halpha Line Formation in the Tidal Disruption Event AT 2019azh
Sara Faris, Iair Arcavi, Lydia Makrygianni +33
AT 2019azh is a H+He tidal disruption event (TDE) with one of the most extensive ultraviolet and optical data sets available to date. We present our photometric and spectroscopic o…
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…
Type Ia Supernova Progenitor Properties and Their Host Galaxies
Sudeshna Chakraborty, Benjamin Sadler, Peter Hoeflich +16
We present an eigenfunction method to analyze 161 visual light curves (LCs) of Type Ia supernovae (SNe Ia) obtained by the Carnegie Supernova Project to characterize their diversit…
Chemical evolution models: the role of type Ia supernovae in the -elements over Iron relative abundances and their variations in time and space
O. Cavichia, M. Mollá, J. J. Bazán +6
The role of type Ia supernovae (SN Ia), mainly the Delay Time Distributions (DTDs) determined by the binary systems, and the yields of elements created by different explosion mecha…
Newly Formed Dust within the Circumstellar Environment of SNIa-CSM 2018evt
Lingzhi Wang, Maokai Hu, Lifan Wang +44
Dust associated with various stellar sources in galaxies at all cosmic epochs remains a controversial topic, particularly whether supernovae (SNe) play an important role in dust pr…
Unprecedented early flux excess in the hybrid 02es-like type Ia supernova 2022ywc indicates interaction with circumstellar material
Shubham Srivastav, T. Moore, M. Nicholl +20
We present optical photometric and spectroscopic observations of the 02es-like type Ia supernova (SN) 2022ywc. The transient occurred in the outskirts of an elliptical host galaxy…
SN 2022jli: a type Ic supernova with periodic modulation of its light curve and an unusually long rise
Moore T., Smartt S. J., Nicholl M. +42
We present multi-wavelength photometry and spectroscopy of SN 2022jli, an unprecedented Type Ic supernova discovered in the galaxy NGC 157 at a distance of 23 Mpc. The mu…
Recovering lost light: discovery of supernova remnants with integral field spectroscopy
Héctor Martínez-Rodríguez, Lluís Galbany, Carles Badenes +8
We present results from a systematic search for broad ( 400 \kms) \ha\ emission in Integral Field Spectroscopy data cubes of 1200 nearby galaxies obtained with PMAS and…
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).…
The Dark Energy Survey Supernova Program: Cosmological Biases from Host Galaxy Mismatch of Type Ia Supernovae
H. Qu, M. Sako, M. Vincenzi +58
Redshift measurements, primarily obtained from host galaxies, are essential for inferring cosmological parameters from type Ia supernovae (SNe Ia). Matching SNe to host galaxies us…
A metallicity dependence on the occurrence of core-collapse supernovae
Thallis Pessi, Joseph P. Anderson, Joseph D. Lyman +5
Core-collapse supernovae (CCSNe) are widely accepted to be caused by the explosive death of massive stars with initial masses M. There is, however, a comparative…
Early Spectroscopy and Dense Circumstellar Medium Interaction in SN 2023ixf
K. Azalee Bostroem, Jeniveve Pearson, Manisha Shrestha +53
We present the optical spectroscopic evolution of SN~2023ixf seen in sub-night cadence spectra from 1.18 to 14 days after explosion. We identify high-ionization emission features,…
SN 2023emq: a flash-ionised Ibn supernova with possible CIII emissio
M. Pursiainen, G. Leloudas, S. Schulze +16
SN 2023emq is a fast-evolving transient initially classified as a rare Type Icn supernova (SN), interacting with a H- and He-free circumstellar medium (CSM) around maximum light. S…
SN 2016ije: An SN 2002es-like Type Ia Supernova Exploded in a Metal-poor and Low-surface Brightness Galaxy
Zhitong Li, Tianmeng Zhang, Xiaofeng Wang +28
We have conducted photometric and spectroscopic observations of the peculiar Type Ia supernova (SN Ia) 2016ije that was discovered through the Tsinghua-NAOC Transient Survey. This…
SN 2022acko: the First Early Far-Ultraviolet Spectra of a Type IIP Supernova
K. Azalee Bostroem, Luc Dessart, D. John Hillier +41
We present five far- and near-ultraviolet spectra of the Type II plateau supernova, SN 2022acko, obtained 5, 6, 7, 19, and 21 days after explosion, all observed with the Hubble Spa…
The Dark Energy Survey Supernova Program: Corrections on photometry due to wavelength-dependent atmospheric effects
J. Lee, M. Acevedo, M. Sako +64
Wavelength-dependent atmospheric effects impact photometric supernova flux measurements for ground-based observations. We present corrections on supernova flux measurements from th…
Multi-scale stamps for real-time classification of alert streams
Ignacio Reyes-Jainaga, Francisco Förster, Alejandra M. Muñoz Arancibia +15
In recent years, automatic classifiers of image cutouts (also called "stamps") have shown to be key for fast supernova discovery. The Vera C. Rubin Observatory will distribute abou…
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…
JWST Low-Resolution MIRI Spectral Observations of SN~2021aefx: High-density Burning in a Type Ia Supernova
J. M. DerKacy, C. Ashall, P. Hoeflich +38
We present a JWST/MIRI low-resolution mid-infrared (MIR) spectroscopic observation of the normal Type Ia supernova (SN Ia) SN 2021aefx at +323 days past rest-frame B-band maximum l…
Serendipitous Nebular-phase JWST Imaging of SN Ia 2021aefx: Testing the Confinement of 56-Co Decay Energy
Ness Mayker Chen, Michael A. Tucker, Nils Hoyer +29
We present new 0.3-21 micron photometry of SN 2021aefx in the spiral galaxy NGC 1566 at +357 days after B-band maximum, including the first detection of any SN Ia at >15 micron. Th…