activity
20132026
most citedSupernova spectra below strong circum-stellar interaction

73 citations · 218 across the 31 of their papers we have counts for

collaborators

33 papers

astro-ph.GA2026

The JADES Transient Survey II: Volumetric Supernova Rates out to z~5

Christa DeCoursey, Christian Vassallo, Louis-Gregory Strolger +27

The JADES Transient Survey (JTS) identified 83 supernova (SN) candidates in the JADES Deep Field, a 25 arcmin region with deep (30 mag) multi-band, multi-epoch JWST…

astro-ph.SR2026

SN 2025aico: Early observations of a faint Type IIb supernova with a low-mass envelope

J. -W. Zhao, A. Pastorello, B. Kumar +45

We aimed to investigate the physical properties and the underlying explosion mechanisms of the Type IIb SN 2025aico. Through a comprehensive analysis of early-phase optical light c…

astro-ph.SR2026

SN 2019vxm: A luminous and long-lived Type IIn supernova with early flash-ionisation features

Y. -Z. Cai, A. Pastorello, T. J. Moriya +38

We present the photometric and spectroscopic analysis of the luminous and long-lasting Type IIn supernova (SN) 2019vxm. The SN reaches a peak V-band absolute magnitude of MV = -20.…

astro-ph.HE2026

Decadal pre-explosion activity and circumstellar interaction in a supernova

Ting-Wan Chen, Amar Aryan, Sheng Yang +52

When a massive star explodes as a supernova, crucial information about its immediate environment is lost within hours. Here we report rapid optical observations from Lulin Observat…

astro-ph.HE2026

Circumbinary Discs as the Origin of Circumstellar Material around Interacting H-poor Supernovae and Fast Blue Optical Transients

Ryotaro Chiba, Semih Tuna, Brian D. Metzger +1

Around 10 % of hydrogen-poor supernovae explode inside compact ( cm), massive () circumstellar material (CSM), signalling an episode of e…

astro-ph.HE2026

The environmental dependence of mid-IR luminous dusty Supernovae

Lin Xiao, Zeyue Peng, Lluis Galbany +10

Using the Spitzer and WISE images, we discovered 42 mid-IR luminous dusty supernovae with local integral-field spectroscopy data. The observed mid-IR emission indicates the presenc…

astro-ph.CO2025★ 1 cited

SN 2025ogs: A Spectroscopically-Normal Type Ia Supernova at z = 2 as a Benchmark for Redshift Evolution

M. R. Siebert, J. D. R. Pierel, M. Engesser +20

The Nancy Grace Roman Space Telescope will provide a revolutionary measurement of the Universe's expansion kinematics, driven by dark matter and dark energy, out to .…

astro-ph.HE2025

The broad-lined type Ic supernova 2020lao experienced an energetic explosion with no central-engine signatures

M. D. Stritzinger, T. J. Moriya, S. Bose +18

We present infant-phase observations of the SN Ic-BL 2020lao, including optical spectroscopy beginning 48 hrs after explosion. The explosion time was constrained by power-law fits…

astro-ph.HE2025

Low-Luminosity Type IIP Supernovae from the Zwicky Transient Facility Census of the Local Universe. II: Lightcurve Analysis

Kaustav K. Das, Mansi M. Kasliwal, Jesper Sollerman +18

The Zwicky Transient Facility Census of the Local Universe survey yielded a sample of 330 Type IIP supernovae (SNe) with well-constrained peak luminosities. In paper I (arXiv:2502.…

astro-ph.HE2025

A Late-time Radio Survey of Type Ia-CSM Supernovae with the Very Large Array

Olivia Griffith, Grace Showerman, Sumit K. Sarbadhicary +8

Type Ia-CSM supernovae (SNe) are a rare and peculiar subclass of thermonuclear SNe characterized by emission lines of hydrogen or helium, indicative of a high-density circumstellar…

astro-ph.HE2025

The First Photometric Evidence of a Transient/Variable Source at z>5 with JWST

Christa DeCoursey, Eiichi Egami, Fengwu Sun +27

The James Webb Space Telescope (JWST) discovered 79 transients out to 4.8 through the JADES Transient Survey (JTS), but the JTS did not find any 5 transients. Here,…

astro-ph.SR2025

Euclid: Quick Data Release (Q1) -- Photometric studies of known transients

C. Duffy, E. Cappellaro, M. T. Botticella +174

We report on serendipitous Euclid observations of previously known transients, using the Euclid Q1 data release. By cross-matching with the Transient Name Server (TNS) we identify…

astro-ph.HE2025★ 1 cited

Discovery of a likely Type II SN at =3.6 with JWST

D. A. Coulter, J. D. R. Pierel, C. DeCoursey +30

Transient astronomy in the early, high-redshift (z > 3) Universe is an unexplored regime that offers the possibility of probing the first stars and the Epoch of Reionization. Durin…

astro-ph.HE2025

Properties of high-redshift Type II supernovae discovered by the JADES transient survey

Takashi J. Moriya, David A. Coulter, Christa DeCoursey +23

In this work we estimate the explosion and progenitor properties of six Type II supernovae (SNe) at 0.675 <= z <= 3.61 discovered by the James Webb Space Telescope (JWST) Advanced…

astro-ph.CO2024

Testing for Intrinsic Type Ia Supernova Luminosity Evolution at z>2 with JWST

J. D. R. Pierel, D. A. Coulter, M. R. Siebert +38

The James Webb Space Telescope} (JWST) is opening new frontiers of transient discovery and follow-up at high-redshift. Here we present the discovery of a spectroscopically confirme…

astro-ph.HE2024★ 7 cited

A diverse, overlooked population of Type Ia supernovae exhibiting mid-infrared signatures of delayed circumstellar interaction

Geoffrey Mo, Kishalay De, Eli Wiston +10

Type Ia supernovae arise from the thermonuclear explosions of white dwarfs in multiple star systems. A rare sub-class of SNe Ia exhibit signatures of interaction with circumstellar…

astro-ph.HE2024★ 4 cited

The fast rise of the unusual Type IIL/IIb SN 2018ivc

A. Reguitti, R. Dastidar, G. Pignata +22

We present an analysis of the photometric and spectroscopic dataset of the Type II supernova (SN) 2018ivc in the nearby (10 Mpc) galaxy Messier 77. Thanks to the high cadence of th…

astro-ph.HE2024

Blue supergiants as a progenitor of intermediate-luminosity red transients

Takashi J. Moriya, Athira Menon

The current perspective about the explosions of massive hydrogen-rich blue supergiants is that they resemble SN 1987A. These so-called peculiar Type II supernovae, however, are one…

astro-ph.HE2024

Discovery and Extensive Follow-Up of SN 2024ggi, a nearby type IIP supernova in NGC 3621

Ting-Wan Chen, Sheng Yang, Shubham Srivastav +45

We present the discovery and early observations of the nearby Type II supernova (SN) 2024ggi in NGC 3621 at 6.64 +/- 0.3 Mpc. The SN was caught 5.8 (+1.9 -2.9) hours after its expl…

astro-ph.GA2024

Discovery of An Apparent Red, High-Velocity Type Ia Supernova at z = 2.9 with JWST

J. D. R. Pierel, M. Engesser, D. A. Coulter +27

We present the JWST discovery of SN 2023adsy, a transient object located in a host galaxy JADES-GS with a host spectroscopic redshift of . Th…

astro-ph.HE2024

Discovery of a Relativistic Stripped Envelope Type Ic-BL Supernova at z = 2.83 with JWST

M. R. Siebert, C. Decoursey, D. A. Coulter +26

We present JWST NIRCam and NIRSpec observations of a Type Ic supernova (SN Ic) and its host galaxy (JADES-GS+53.13533-27.81457) at . This SN (named SN 2023adta) was ident…

astro-ph.HE2024

The JADES Transient Survey: Discovery and Classification of Supernovae in the JADES Deep Field

Christa DeCoursey, Eiichi Egami, Justin D. R. Pierel +35

The JWST Advanced Deep Extragalactic Survey (JADES) is a multi-cycle JWST program that has taken among the deepest near-/mid-infrared images to date (down to 30 ABmag) over $…

astro-ph.HE2024

Physical Properties of Type II Supernovae Inferred from ZTF and ATLAS Photometric Data

Javier Silva-Farfán, Francisco Förster, Takashi J. Moriya +6

We report an analysis of a sample of 186 spectroscopically confirmed Type II supernova (SN) light curves (LCs) obtained from a combination of Zwicky Transient Facility (ZTF) and As…

astro-ph.HE2024★ 2 cited

Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Yashvi Sharma, Jesper Sollerman, Shrinivas R. Kulkarni +32

Multi-peaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-s…