activity
20202026
most citedThe Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters

629 citations · 3.1k across the 97 of their papers we have counts for

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22 papers · 1 filter

astro-ph.GA2025

Ionizing Photon Production Efficiencies and Chemical Abundances at Cosmic Dawn Revealed by Ultra-Deep Rest-Frame Optical Spectroscopy of JADES-GS-z14-0

Jakob M. Helton, Jane E. Morrison, Kevin N. Hainline +40

JWST has discovered an early period of galaxy formation that was more vigorous than expected, which has challenged our understanding of the early Universe. In this work, we present…

astro-ph.GA2025

JADES: Low Surface Brightness Galaxies at 0.4 < z < 0.8 in GOODS-S

Tristen Shields, Marcia Rieke, Kevin Hainline +11

Low surface brightness galaxies (LSBs) are an important class of galaxies that allow us to broaden our understanding of galaxy formation and test various cosmological models. We pr…

astro-ph.GA2025★ 3 cited

JADES Dark Horse: demonstrating high-multiplex observations with JWST/NIRSpec dense-shutter spectroscopy in the JADES Origins Field

Francesco D'Eugenio, Erica J. Nelson, Daniel J. Eisenstein +40

We present JWST/NIRSpec dense-shutter spectroscopy (DSS). This novel observing strategy with the NIRSpec/MSA deliberately permits a high number of controlled spectral overlaps to r…

astro-ph.SR2025

JADES: An Abundance of Ultra-Distant T- and Y-Dwarfs in Deep Extragalactic Data

Kevin N. Hainline, Jakob M. Helton, Brittany E. Miles +14

Ultra-cool T- (T 500 - 1200 K) and Y-dwarfs (T K) have historically been found only a few hundred parsecs from the Sun.…

astro-ph.GA2025★ 1 cited

JADES: The Star Formation and Dust Attenuation Properties of Galaxies at 3<z<7

Charity Woodrum, Irene Shivaei, Joris Witstok +23

We present the star formation and dust attenuation properties for a sample of 602 galaxies at redshifts , as part of the JADES survey. Our analysis is based on measurem…

astro-ph.GA2025

Quasar Radiative Feedback May Suppress Galaxy Growth on Intergalactic Scales at

Yongda Zhu, Eiichi Egami, Xiaohui Fan +27

We present observational evidence that intense ionizing radiation from a luminous quasar suppresses nebular emission in nearby galaxies on intergalactic scales at . Using JW…

astro-ph.GA2025

JADES-GS-z14-1: A Compact, Faint Galaxy at with Weak Metal Lines from Extremely Deep JWST MIRI, NIRCam, and NIRSpec Observations

Zihao Wu, Daniel J. Eisenstein, Benjamin D. Johnson +29

JWST has shed light on galaxy formation and metal enrichment within 300 Myr of the Big Bang. While luminous galaxies at often show significant [O III]4959, 5007 emissi…

astro-ph.GA2025

SMILES Data Release II: Probing Galaxy Evolution during Cosmic Noon and Beyond with NIRSpec Medium-Resolution Spectra

Yongda Zhu, Nina Bonaventura, Yang Sun +12

We present the second data release of the Systematic Mid-Infrared Instrument (MIRI) Legacy Extragalactic Survey (SMILES), focusing on JWST/NIRSpec medium-resolution spectroscopy of…

astro-ph.GA2025★ 4 cited

Bursting at the seams: the star-forming main sequence and its scatter at z=3-9 using NIRCam photometry from JADES

C. Simmonds, S. Tacchella, W. McClymont +24

We present a comprehensive study of the star-forming main sequence (SFMS) and its scatter at redshifts , using NIRCam photometry from the JADES survey in the GOODS…

astro-ph.GA2025★ 5 cited

On the origins of oxygen: ALMA and JWST characterise the multi-phase, metal-enriched, star-bursting medium within a 'normal' galaxy

Joris Witstok, Renske Smit, William M. Baker +29

The unexpectedly high abundance of galaxies at revealed by JWST has sparked a debate on the nature of early galaxies and the physical mechanisms regulating their formation…

astro-ph.GA2025★ 1 cited

The Stellar Populations and Rest-Frame Colors of Star-Forming Galaxies at : Exploring the Impact of Filter Choice and Star Formation History Assumption with JADES

Jakob M. Helton, Stacey Alberts, George H. Rieke +30

Our understanding of the physical properties of star-forming galaxies during the Epoch of Reionization (EoR, at ) suffers from degeneracies among the apparent properties of…

astro-ph.GA2025★ 4 cited

SAPPHIRES: Extremely Metal-Poor Galaxy Candidates with at from Deep JWST/NIRCam Grism Observations

Tiger Yu-Yang Hsiao, Fengwu Sun, Xiaojing Lin +19

Population III stars, the hypothetical first generation metal-free stars, have yet to be discovered. Even after three years of successful JWST operations, studies have shown that m…

astro-ph.GA2025★ 1 cited

The Large-scale Environments of Low-luminosity AGNs at and Implications for Their Host Dark Matter Halos from a Complete NIRCam Grism Redshift Survey

Xiaojing Lin, Xiaohui Fan, Fengwu Sun +19

We study the large-scale environments and clustering properties of 28 low-luminosity AGNs at in the GOODS-N field. Our sample, identified from the JWST NIRCam Imaging and…

astro-ph.GA2025

Abundant Population of Broad H Emitters in the GOODS-N Field Revealed by CONGRESS, FRESCO, and JADES

Junyu Zhang, Eiichi Egami, Fengwu Sun +15

We present a spectroscopic search for broad H emitters at z3.7-6.5 in the GOODS-N field, utilizing JWST/NIRCam slitless spectroscopy from FRESCO and CONGRESS, complemen…

astro-ph.GA2025★ 1 cited

The Luminosity Function and Clustering of H Emitting Galaxies at from a Complete NIRCam Grism Redshift Survey

Xiaojing Lin, Eiichi Egami, Fengwu Sun +20

We study the luminosity function (LF) and clustering properties of 888 H emitters (HAEs) at in the GOODS-N field. The sample, built from JWST CONGRESS and FRESCO…

astro-ph.GA2025★ 6 cited

The Importance of Dust Distribution in Ionizing-photon Escape: NIRCam and MIRI Imaging of a Lyman Continuum-emitting Galaxy at z ~ 3.8

Zhiyuan Ji, Stacey Alberts, Yongda Zhu +14

We present deep JWST/NIRCam and MIRI imaging of Ion1, a previously confirmed Lyman Continuum (LyC)-emitting galaxy at . Together with existing HST imaging, these ne…

astro-ph.GA2025★ 23 cited

The dawn of disks: unveiling the turbulent ionised gas kinematics of the galaxy population at with JWST/NIRCam grism spectroscopy

A. Lola Danhaive, Sandro Tacchella, Hannah Übler +27

Recent studies of gas kinematics at high redshift have reported disky systems which appear to challenge models of galaxy formation, but it is unclear whether they are representativ…

astro-ph.GA2025★ 4 cited

SAPPHIRES: A Galaxy Over-Density in the Heart of Cosmic Reionization at

Yoshinobu Fudamoto, Jakob M. Helton, Xiaojing Lin +17

We report the discovery of a galaxy proto-cluster candidate (dubbed MACS0416-OD-z8p5) at a spectroscopic redshift of , dating back to Myr after the Big Bang. Th…

astro-ph.GA2025★ 3 cited

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…

astro-ph.GA2025★ 1 cited

JADES and SAPPHIRES: Galaxy Metamorphosis Amidst a Huge, Luminous Emission-line Region

Francesco D'Eugenio, Jakob M. Helton, Kevin Hainline +32

We report the discovery of a remarkably large and luminous line-emitting nebula extending on either side of the Balmer-break galaxy JADES-GS-518794 at z=5.89, detected with JADES J…

astro-ph.GA2025★ 10 cited

Detection of the 2175Å UV Bump at z>7: Evidence for Rapid Dust Evolution in a Merging Reionisation-Era Galaxy

Katherine Ormerod, Joris Witstok, Renske Smit +15

Dust is a fundamental component of the interstellar medium within galaxies, as dust grains are highly efficient absorbers of ultraviolet (UV) and optical photons. Accurately quanti…

astro-ph.GA2025★ 5 cited

The galaxy UV luminosity function from the JWST Advanced Deep Extragalactic Survey: insights into early galaxy evolution and reionization

Lily Whitler, Daniel P. Stark, Michael W. Topping +24

The high-redshift UV luminosity function provides important insights into the evolution of early galaxies. JWST has revealed an unexpectedly large population of bright ($M_\mathrm{…