Z. Ji

Discovery of the Lyman- $α$ Forest in a Star-Forming Galaxy at $z \approx 7.57$ : Implications for the Timing and Topology of Cosmic Reionization

Jakob M. Helton, Joris Witstok, Marta Laska +15

The escape of ionizing photons from galaxies during the Epoch of Reionization is often inferred indirectly because the intervening neutral hydrogen in the intergalactic medium (IGM…

astro-ph.IM2026

Source--Line Associations in JWST/NIRSpec Dense-Shutter Spectroscopy

Zihao Wu, Daniel J. Eisenstein, Francesco D'Eugenio +9

We demonstrate the feasibility of source--line association in JWST/NIRSpec dense-shutter spectroscopy, with $\sim$ 2000 sources observed simultaneously per pointing regardless of sp…

PhotoIFU: NIRCam as a Photometric Integral Field Unit for Mapping Feedback in Galaxies

Yongda Zhu, Marcia J. Rieke, Courtney Carreira +25

We present PhotoIFU, a workflow that uses deep multi-band imaging as a low-resolution photometric integral field unit. Applied to PSF-matched JWST/NIRCam imaging, PhotoIFU treats e…

A quasar hatching from a buried red phase at z = 3.7

Zheng Ma, Yongda Zhu, Zhiyuan Ji +21

We present JADES-GS 209777, previously cataloged as CANDELS J033238.02-274626.2, hereafter "the Hatchling," a red quasar at $z = 3.711$ . While the source has been reported in earlier…

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 $0 \leq z \leq 5$ . 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 $\sim$ 25 arcmin $^{2}$ region with deep ( $\sim$ 30 mag) multi-band, multi-epoch JWST…

A Pixel-by-Pixel Path to Population III Discovery with JWST

Patricia Iglesias-Navarro, Thomas Harvey, Marc Huertas-Company +11

The identification of the first generation of metal-free stars, known as Population III (Pop~III), remains a primary goal of modern observational astronomy. While JWST has discover…

Early metal-enriched baryon cycling before the midpoint of cosmic reionization

Yongda Zhu, Zhiyuan Ji, George D. Becker +13

Models predict that chemical enrichment and gas redistribution should begin rapidly once star formation starts, but direct constraints at the earliest epochs have been scarce. Here…

JADES: Evolution of nitrogen abundances in star-forming galaxies from z ~ 1.5-7

Alex J. Cameron, Courtney Carreira, Charlotte Simmonds +22

We present nitrogen abundance measurements based on the low-ionisation [NII]6583 emission line for 588 galaxies between 1.5<z<7.0 from the JWST Advanced Deep Extragalactic Survey (…

astro-ph.GA2026★ 2 cited

JADES: Discovery of Large Reservoirs of Small Dust Grains in the Circumgalactic Medium of Massive Galaxies at $z \sim 3.5$ through Deep JWST/NIRCam Imaging and Grism Spectroscopy

Fengwu Sun, Daniel J. Eisenstein, Francesco D'Eugenio +23

Using JWST NIRCam imaging and grism spectroscopy from the JWST Advanced Deep Extragalactic Survey (JADES) Origins Fields, we report spectroscopic redshift measurements of 1,445 emi…

JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Catalogs of inferred morphological properties of galaxies from JWST/NIRCam imaging in GOODS-N and GOODS-S

Courtney Carreira, Brant E. Robertson, A. Lola Danhaive +26

We present morphological parameters and their uncertainties for all sources detected in JWST/NIRCam imaging in GOODS-N and GOODS-S from the JWST Advanced Deep Extragalactic Survey…

astro-ph.GA2026★ 5 cited

JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Photometric Catalog

Brant E. Robertson, Benjamin D. Johnson, Sandro Tacchella +34

JADES Data Release 5 (DR5) photometric catalogs and describes the methodologies used for source detection, deblending, photometry, uncertainty estimation, and catalog curation. The…

JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: MIRI Coordinated Parallels in GOODS-S and GOODS-N

Stacey Alberts, Daniel J. Eisenstein, Andrew J. Bunker +19

Medium to ultra-deep mid-infrared imaging surveys with the James Webb Space Telescope (JWST)'s Mid-Infrared Instrument (MIRI) are reframing our view of the early Universe, from the…

astro-ph.GA2026★ 4 cited

JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: NIRCam Imaging in GOODS-S and GOODS-N

Benjamin D. Johnson, Brant E. Robertson, Daniel J. Eisenstein +30

We present the Near Infrared Camera (NIRCam) imaging products of the fifth data release (DR5) of the James Webb Space Telescope (JWST) Advanced Deep Extragalactic Survey (JADES). T…

Clumps in High-Redshift Galaxies: Mass Scaling and Radial Trends from JADES

Yongda Zhu, Marcia J. Rieke, Zhiyuan Ji +20

Massive star-forming clumps are a prominent feature of high-redshift galaxies and are thought to trace gravitational fragmentation, feedback, and bulge growth in gas-rich disks. We…

Undermassive Hosts of $z = 4 - 6$ AGN from JWST/NIRCam Image Decomposition with CONGRESS, FRESCO, and JADES

Zheng Ma, Eichi Egami, Yongda Zhu +18

In the local Universe, supermassive black hole (SMBH) masses strongly correlate with their host-galaxies' stellar masses ( $M_{*}$ ), but galaxies hosting faint AGN recently found by…

JADES: A Prominent Galaxy Overdensity Candidate within the First 500 Myr

Zihao Wu, Daniel J. Eisenstein, Benjamin D. Johnson +20

We report a galaxy overdensity candidate at $z \approx 10.5$ in the JWST Advanced Deep Extragalactic Survey (JADES). This overdensity contains 18 galaxies with consistent photometric…

JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Photometrically Selected Galaxy Candidates at z > 8

Kevin N. Hainline, Daniel J. Eisenstein, Lily Whitler +34

We present a sample of 2081 sources selected at photometric redshift $z_{phot} > 8$ across the JADES DR5 data release in GOODS-S and GOODS-N over a total area of 469 squar…

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★ 5 cited

Beyond the stars: Linking H $α$ sizes, kinematics, and star formation in galaxies at $z \approx 4 - 6$ with JWST grism surveys and $geko$

A. Lola Danhaive, Sandro Tacchella, William McClymont +15

Understanding how galaxies assemble their mass during the first billion years of cosmic time is a central goal of extragalactic astrophysics, yet joint constraints on their sizes a…

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…

Quasar Radiative Feedback May Suppress Galaxy Growth on Intergalactic Scales at $z = 6.3$

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 $z = 6.3$ . Using JW…

JADES-GS-z14-1: A Compact, Faint Galaxy at $z \approx 14$ 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 $z > 10$ often show significant [O III] $λλ$ 4959, 5007 emissi…