174 citations · 530 across the 30 of their papers we have counts for
32 papers
Balmer Break Measurements Trace Departures from the Star-Forming Main Sequence at with JWST/NIRSpec
Suprabhas Narisetty, Yongda Zhu, Eiichi Egami +4
We present JWST/NIRSpec PRISM observations of galaxies at to study the relation between Balmer-break strength () and recent star formation. Using NIRSpec sp…
SN Helios: A Multiply Imaged Type II Supernova Opening Time-Delay Cosmography beyond redshift of 3
Seiji Fujimoto, Conor Larison, Justin D. R. Pierel +64
We report the discovery and spectroscopic confirmation of SN Helios, a strongly lensed, multiply imaged Type II supernova (SN) at behind the galaxy cluster RXC J0018.5+162…
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…
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…
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…
The Little Blue and Red Dots Rosetta Stones: Non-Gaussian broad lines, hot dust, and X-ray weakness
M. Brazzini, F. D'Eugenio, R. Maiolino +31
The population of Active Galactic Nuclei (AGN) newly discovered by the James Webb Space Telescope (JWST) exhibits peculiar properties that distinguish it from both local type I AGN…
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…
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…
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 .…
The VLA Frontier Fields Survey: A 6GHz High-resolution Radio Survey of Abell2744
Esteban A. Orozco, Eric F. Jiménez-Andrade, Eric J. Murphy +5
We present 6GHz radio continuum observations of the galaxy cluster Abell 2744 () obtained with the Karl G. Jansky Very Large Array (VLA) as part of the VLA Frontier Fiel…
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,…
Slitless Areal Pure-Parallel HIgh-Redshift Emission Survey (SAPPHIRES): Early Data Release of Deep JWST/NIRCam Images and Spectra in MACS J0416 Parallel Field
Fengwu Sun, Yoshinobu Fudamoto, Xiaojing Lin +25
We present the early data release (EDR) of SAPPHIRES, a JWST Cycle-3 Treasury imaging and spectroscopic survey using the powerful NIRCam wide-field slitless spectroscopic (WFSS) mo…
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…
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…
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…
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…
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…
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 $…
JWST meets Chandra: a large population of Compton thick, feedback-free, and intrinsically X-ray weak AGN, with a sprinkle of SNe
Roberto Maiolino, Guido Risaliti, Matilde Signorini +22
We investigate the X-ray properties of a sample of 71 broad line and narrow line AGN at 2z11 discovered by JWST in the GOODS fields, which have the deepest Chandra observatio…
A dormant, overmassive black hole in the early Universe
Ignas Juodžbalis, Roberto Maiolino, William M. Baker +25
Recent observations have found a large number of supermassive black holes already in place in the first few hundred million years after Big Bang. The channels of formation and grow…
JADES: Rest-frame UV-to-NIR Size Evolution of Massive Quiescent Galaxies from Redshift z=5 to z=0.5
Zhiyuan Ji, Christina C. Williams, Katherine A. Suess +37
We present the UV-to-NIR size evolution of a sample of 161 quiescent galaxies (QGs) with over . With deep multi-band NIRCam images in GOODS-South from…
The galaxies missed by Hubble and ALMA: the contribution of extremely red galaxies to the cosmic census at 3<z<8
Christina C. Williams, Stacey Alberts, Zhiyuan Ji +33
Using deep JWST imaging from JADES, JEMS and SMILES, we characterize optically-faint and extremely red galaxies at that were previously missing from galaxy census estimates.…
JADES: Resolving the Stellar Component and Filamentary Overdense Environment of HST-Dark Submillimeter Galaxy HDF850.1 at
Fengwu Sun, Jakob M. Helton, Eiichi Egami +28
HDF850.1 is the brightest submillimeter galaxy (SMG) in the Hubble Deep Field. It is known as a heavily dust-obscured star-forming galaxy embedded in an overdense environment at $z…
MAGNIF: A Tentative Lensed Rotating Disk at detected by JWST NIRCam WFSS with Dynamical Forward Modeling
Zihao Li, Zheng Cai, Fengwu Sun +39
We report galaxy MACS0416-Y3 behind the lensing cluster MACSJ0416.1--2403 as a tentative rotating disk at detected through its [OIII] emission in JWST NIRCam…