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Profil bibliographique

Benjamin D. Johnson

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

19Publications signalées
11Citations signalées
1Affiliations récentes

Les institutions déclarées

Les domaines associés

Galaxies: Formation, Evolution, PhenomenaAstronomy and Astrophysical ResearchGamma-ray bursts and supernovaeSpace Technology and ApplicationsStellar, planetary, and galactic studies

Les publications récentes

Accès ouvert 2026 preprint OpenAlex

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, Sandro Tacchella et autres

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). The JADES survey is one of the most ambitious programs yet conducted on JWST, producing …

4 citations arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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

Zihao Wu, Daniel J. Eisenstein, Benjamin D. Johnson, Kevin N. Hainline et autres

We report a galaxy overdensity candidate at $z\approx10.5$ in the JWST Advanced Deep Extragalactic Survey (JADES). This overdensity contains 18 galaxies with consistent photometric redshifts within 8 comoving Mpc in projection. The galaxy number density is four times higher than the field …

0 citations arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

JADES: Discovery of Large Reservoirs of Small Dust Grains in the Circumgalactic Medium of Massive Galaxies at $z\sim3.5$ through Deep JWST/NIRCam Imaging and Grism Spectroscopy

Fengwu Sun, Daniel J. Eisenstein, Francesco D'Eugenio, Kevin N. Hainline et autres

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 emission-line galaxies at $z=0-9$. Within this sample, we identify two prominent galaxy protoclusters at $z = 3.47$ and …

2 citations arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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

Kevin N. Hainline, Daniel J. Eisenstein, Lily Whitler, Brant E. Robertson et autres

We present a sample of 2081 sources selected at photometric redshift $z_{\mathrm{phot}} > 8$ across the JADES DR5 data release in GOODS-S and GOODS-N over a total area of 469 square arcmin. These sources range from $M_{\mathrm{UV}} = -22$ to $M_{\mathrm{UV}} = …

1 citation arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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

Yongda Zhu, Marcia J. Rieke, Zhiyuan Ji, Andrew J. Bunker et autres

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 present a statistical analysis of clumps in $\sim$3600 galaxies spanning $2 \lesssim z \lesssim 8$ from deep …

1 citation arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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

Alex J. Cameron, Courtney Carreira, Charlotte Simmonds, Andrew J. Bunker et autres

We present nitrogen abundance measurements based on the low-ionisation [NII]6583 emission line for 588 galaxies between 1.5-1.1) at low-metallicity (12+log(O/H)<8.0) from $T_e$-based measurements. Meanwhile, applying strong-line abundance measurements to the remainder of our sample reveals a further 14 candidate galaxies passing these …

1 citation arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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, Zhiyuan Ji et autres

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 (JADES) catalogs. We model the surface brightness profiles of these sources with single-component Sérsic profiles, performing Bayesian …

1 citation arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Wisp Subtraction with the Non-negative Matrix Factorization Algorithm

Zihao Wu, Benjamin D. Johnson, Daniel J. Eisenstein, Phillip A. Cargile et autres

Wisps are among the most prominent scattered light artifacts in JWST/NIRCam imaging. They often appear in certain regions of the detectors and contaminate observations at surface-brightness levels relevant for faint-source photometry. We introduce a new subtraction method that uses the non-negative matrix …

1 citation arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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

Stacey L. Alberts, Daniel J. Eisenstein, Andrew J. Bunker, Emma Curtis-Lake et autres

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 emergence of ultra-red dusty and quiescent galaxies to the epoch of reionization to the first galaxies. …

0 citations arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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

Alex J. Cameron, Courtney Carreira, Charlotte Simmonds, Andrew J. Bunker et autres

We present nitrogen abundance measurements based on the low-ionisation [NII]6583 emission line for 588 galaxies between 1.5 -1.1) at low-metallicity (12+log(O/H)<8.0) from $T_e$-based measurements. Meanwhile, applying strong-line abundance measurements to the remainder of our sample reveals a further 14 candidate galaxies passing …

0 citations arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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

Brant E. Robertson, Benjamin D. Johnson, Sandro Tacchella, Daniel J. Eisenstein et autres

JADES Data Release 5 (DR5) photometric catalogs and describes the methodologies used for source detection, deblending, photometry, uncertainty estimation, and catalog curation. The catalogs are constructed from 35 space-based imaging mosaics obtained with JWST/NIRCam, JWST/MIRI, HST/ACS, and HST/WFC3, combining approximately 1250 hours …

0 citations arXiv (Cornell University)
Accès ouvert 2026 preprint OpenAlex

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, Sandro Tacchella et autres

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). The JADES survey is one of the most ambitious programs yet conducted on JWST, producing …

0 citations arXiv (Cornell University)

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