activity
20242026
most citedLensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations

6 citations · 13 across the 21 of their papers we have counts for

collaborators

21 papers

astro-ph.GA2026

VENUS: an ultra-faint galaxy hosting the metal-poor type II supernova at Witnessing the initial metal enrichment with extremely frequent core-collapse supernovae?

Yoshihisa Asada, Seiji Fujimoto, Joseph F. V. Allingham +50

We present the first characterization of the host galaxy of a recently discovered type IIP SN at (SN Eos). SN Eos and its host galaxy are gravitationally lensed and multip…

astro-ph.GA2026

The JADES Transient Survey III: Linking Core-Collapse Supernova Rates to Cosmic Star Formation

Christian Vassallo, Seppo Mattila, Christa DeCoursey +24

We investigate how core-collapse supernova (CCSN) rates trace the star-formation rate densities (SFRDs) over the redshift range . For this we use new high-redshift r…

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.IM2026

Flux Cube Reconstruction from Slitless Spectroscopy

M. Griggio, R. E. Ryan, N. Pirzkal +19

Slitless spectroscopy enables efficient, large-area surveys without target pre-selection, yet it faces challenges from source blending, higher noise, and lost spatial-spectral info…

cs.IR2026

Traditional statistical representations outperform generative AI in identifying expert peer reviewers

Vicente Amado Olivo, Tereza Jerabkova, Jakub Klencki +5

The exponential growth of scientific submissions has strained the peer review system. Despite the rapidly expanding global pool of researchers, this unprecedented scale has rendere…

astro-ph.GA2026

SN 2025adpq: A Type Ia supernova in a collisional ring formed during a major galaxy merger

Brendan O'Connor, Xander J. Hall, Tomas Cabrera +16

Galaxy mergers can both trigger star formation and rearrange where stars live, producing long-lived tidal structures and collisionally driven density waves (known as collisional ri…

astro-ph.GA2026

MXDFz4.4: A LyC emitter 250Myr after the epoch of reionization and a first test of Ly-alpha morphology as a tracer of LyC escape at high redshift

Ilias Goovaerts, Marc Rafelski, Alexander Beckett +14

Assessing the contribution of ionizing sources to cosmic reionization is a central goal of extragalactic astrophysics. Understanding and quantifying ionizing escape remains challen…

astro-ph.HE2026

A spectroscopically confirmed, strongly lensed, metal-poor Type II supernova at z = 5.13

David A. Coulter, Conor Larison, Justin D. R. Pierel +88

Observing supernovae (SNe) in the early Universe (z > 3) provides a window into how both galaxies and individual stars have evolved over cosmic time, yet a detailed study of high-r…

astro-ph.CO2026

Feeling Blue: Constructing a Robust SALT3 UV Template and Constraining its Redshift Dependency

Qinan Wang, David O. Jones, Justin D. R. Pierel +13

Upcoming cosmological surveys will obtain numerous rest-frame ultraviolet (UV) observations of Type Ia supernovae (SNe Ia), yet there is concern about how standardizable SNe Ia are…

astro-ph.HE2026

Expanding the High-z Supernova Frontier: "Wide-Area" JWST Discoveries from the First Two Years of COSMOS-Web

Ori D. Fox, Armin Rest, Justin D. R. Pierel +48

Transient astronomy in the early Universe (z > 2) remains largely unexplored, lying beyond the rest-frame optical spectroscopic reach of most current observatories. Yet this regime…

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.SR2025

JWST Observations of SN 2023ixf II: The Panchromatic Evolution Between 250 and 720 Days After the Explosion

K. Medler, C. Ashall, P. Hoeflich +60

We present the nebular phase spectroscopic and photometric observations of the nearby hydrogen-rich core-collapse supernova (CC-SN) 2023ixf, obtained through our JWST programs. The…

astro-ph.HE2025

JWST Observations of SN 2023ixf I: Completing the Early Multi-Wavelength Picture with Plateau-phase Spectroscopy

J. M. DerKacy, C. Ashall, E. Baron +46

We present and analyze panchromatic (0.35--14 m) spectroscopy of the Type II supernova 2023ixf, including near- and mid-infrared spectra obtained 33.6 days after explosion durin…

astro-ph.SR2025

JWST Observations of SN 2024ggi I: Interpretation and Model Comparison of the Type II Supernova 2024ggi at 55 days Past Explosion

E. Baron, C. Ashall, J. M. DerKacy +40

We present panchromatic 0.4-21 microns observations of the nearby (about 7.2 Mpc) Type II supernova 2024ggi, obtained during the plateau phase at about 55 d past explosion. Our dat…

astro-ph.SR2025

Very Late-Time JWST and Keck Spectra of the Oxygen-Rich Supernova 1995N

Geoffrey C. Clayton, R. Wesson, Ori D. Fox +43

We present new {\it JWST}/MIRI MRS and Keck spectra of SN 1995N obtained in 2022--2023, more than 10,000 days after the supernova (SN) explosion. These spectra are among the latest…

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.GA2025★ 1 cited

On the Origins of "Hostless'' Supernovae: Testing the Faint-end Galaxy Luminosity Function and Supernova Progenitors with Events in Dwarf Galaxies

Louis-Gregory Strolger, Mia Sauda Bovill, Eric Perlman +3

We present arguments on the likely origins of supernovae without associated host galaxies from open field, non-clustered, environments. We show why it is unlikely these ``hostless'…

astro-ph.SR2025★ 5 cited

JWST/MIRI detects the dusty SN1993J about 30 years after explosion

Tamás Szalai, Szanna Zsíros, Jacob Jencson +37

Core-collapse supernovae (CCSNe) have long been considered to contribute significantly to the cosmic dust budget. New dust cools quickly and is therefore detectable at mid-infrared…

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.HE2024

JWST/MIRI Observations of Newly Formed Dust in the Cold, Dense Shell of the Type IIn SN 2005ip

Melissa Shahbandeh, Ori D. Fox, Tea Temim +42

Dust from core-collapse supernovae (CCSNe), specifically Type IIP SNe, has been suggested to be a significant source of the dust observed in high-redshift galaxies. CCSNe eject lar…

astro-ph.HE2024★ 6 cited

LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations

Conor Larison, Justin D. R. Pierel, Max J. B. Newman +34

Strongly lensed supernovae (SNe) are a rare class of transient that can offer tight cosmological constraints that are complementary to methods from other astronomical events. We pr…