output
20232025
most citedRUBIES: JWST/NIRSpec Confirmation of an Infrared-luminous, Broad-line Little Red Dot with an Ionized Outflow

81 citations

48 papers

astro-ph.HE2025★ 2 cited

The Type Ia Supernova 2021hem: A 2003fg-like Event in an Apparently Hostless Environment

Subhash Bose, M. D. Stritzinger, A. Malmgaard +25

We report observations of Type Ia SN 2021hem, located in an apparently hostless environment. With a peak absolute B-band magnitude of -19.96 mag, and a lack of secondary maximum in…

astro-ph.GA2025★ 17 cited

A merging pair of massive quiescent galaxies at in the Cosmic Vine

K. Ito, F. Valentino, M. Farcy +26

We report the spectroscopic confirmation of a merging pair of massive quiescent galaxies at . Using JWST observations, we confirm that the two galaxies lie at a projected s…

astro-ph.GA2025★ 6 cited

Going deeper into the dark with COSMOS-Web: JWST unveils the total contribution of Radio-Selected NIRfaint galaxies to the cosmic Star Formation Rate Density

Fabrizio Gentile, Margherita Talia, Andrea Enia +34

We present the first follow-up with JWST of radio-selected NIRfaint galaxies as part of the COSMOS-Web survey. By selecting galaxies detected at radio frequencies ($S_{\rm 3 GHz}>1…

astro-ph.GA2025★ 6 cited

The COSMOS-Web ring: Spectroscopic confirmation of the background source at z = 5.1

Marko Shuntov, Shuowen Jin, Wilfried Mercier +22

We report the spectroscopic confirmation of the background source of the most distant Einstein ring known to date, the COSMOS-Web ring. This system consists of a complete Einstein…

astro-ph.GA2025★ 10 cited

Evolution of the Sérsic Index up to z=2.5 from JWST and HST

Marco Martorano, Arjen van der Wel, Maarten Baes +12

The James Webb Space Telescope (JWST) is unveiling the rest-frame near-IR structure of galaxies. We measure the evolution with redshift of the rest-frame optical and near-IR Sérsic…

astro-ph.GA2024★ 5 cited

Behind the dust veil: A panchromatic view of an optically dark galaxy at z=4.82

Nikolaj B. Sillassen, Shuowen Jin, Georgios E. Magdis +30

Optically dark dusty star-forming galaxies (DSFGs) play an essential role in massive galaxy formation at early cosmic time, however their nature remains elusive. Here we present a…

astro-ph.GA2024★ 5 cited

The ALPINE-ALMA [CII] Survey: Unveiling the baryon evolution in the ISM of star-forming galaxies

P. Sawant, A. Nanni, M. Romano +28

Recent observations reveal a rapid dust build-up in high-redshift galaxies (z > 4), challenging current models of galaxy formation. While our understanding of dust production and d…

astro-ph.GA2024★ 2 cited

The Jet Paths of Radio AGN and their Cluster Weather

E. Vardoulaki, V. Backöfer, A. Finoguenov +21

We studied bent radio sources within X-ray galaxy groups in the COSMOS and XMM-LSS fields, using radio data from the MeerKAT International GHz Tiered Extragalactic Explorations dat…

astro-ph.GA2024★ 16 cited

PANORAMIC: Discovery of an Ultra-Massive Grand-Design Spiral Galaxy at

Mengyuan Xiao, Christina C. Williams, Pascal A. Oesch +26

We report the discovery of an ultra-massive grand-design red spiral galaxy, named Zhúlóng (Torch Dragon), at in the JWST PANORAMIC survey, identi…

astro-ph.GA2024★ 22 cited

MIRI Deep Imaging Survey (MIDIS) of the Hubble Ultra Deep Field

Göran Östlin, Pablo G. Pérez-González, Jens Melinder +41

The recently launched James Webb Space Telescope (JWST) is opening new observing windows on the distant universe. Among JWST's instruments, the Mid Infrared Instrument (MIRI) offer…

astro-ph.GA2024★ 6 cited

JWST Reveals Bulge-dominated Star-forming Galaxies at Cosmic Noon

Chloë E. Benton, Erica J. Nelson, Tim B. Miller +10

Hubble Space Telescope imaging shows that most star-forming galaxies at cosmic noon -- the peak of cosmic star formation history -- appear disk-dominated, leaving the origin of the…

astro-ph.GA2024★ 61 cited

COSMOS-Web: stellar mass assembly in relation to dark matter halos across of cosmic history

M. Shuntov, O. Ilbert, S. Toft +43

We study the stellar mass function (SMF) and the co-evolution with dark matter halos via abundance matching in the largest redshift range to date in $0.53 \, {\rm deg}^2…

astro-ph.GA2024★ 8 cited

NGDEEP: The Star Formation and Ionization Properties of Galaxies at

Lu Shen, Casey Papovich, Jasleen Matharu +23

We use JWST/NIRISS slitless spectroscopy from the Next Generation Deep Extragalactic Exploratory Public (NGDEEP) Survey to investigate the physical condition of star-forming galaxi…

astro-ph.GA2024★ 50 cited

UNCOVER: 404 Error -- Models Not Found for the Triply Imaged Little Red Dot A2744-QSO1

Yilun Ma, Jenny E. Greene, David J. Setton +20

JWST has revealed an abundance of compact, red objects at dubbed "little red dots" (LRDs), whose SEDs display a faint blue UV continuum followed by a steep rise in th…

astro-ph.GA2024★ 13 cited

COSMOS-Web: A history of galaxy migrations over the stellar mass-star formation rate plane

R. C. Arango-Toro, O. Ilbert, L. Ciesla +39

The stellar mass-star formation rate (-) plane is a fundamental diagnostic for distinguishing galaxy populations. However, the evolutionary pathways of…

astro-ph.GA2024★ 15 cited

ALMA observations of super-early galaxies: attenuation-free model predictions

A. Ferrara, S. Carniani, F. di Mascia +3

The abundance and blue color of super-early (redshift ), luminous galaxies discovered by JWST can be explained if radiation-driven outflows have ejected their dust on kpc-sca…

astro-ph.CO2024★ 6 cited

Euclid preparation. Simulations and nonlinearities beyond CDM. 1. Numerical methods and validation

Euclid Collaboration, J. Adamek, B. Fiorini +268

To constrain models beyond CDM, the development of the Euclid analysis pipeline requires simulations that capture the nonlinear phenomenology of such models. We present an overv…

astro-ph.GA2024★ 15 cited

Not-so-little Red Dots: Two massive and dusty starbursts at z~5-7 pushing the limits of star formation discovered by JWST in the COSMOS-Web survey

Fabrizio Gentile, Caitlin M. Casey, Hollis B. Akins +24

We present the properties of two candidate massive () and dusty ( mag) galaxies at in the first 0.28 deg of the COSMOS-Web sur…

astro-ph.GA2024★ 55 cited

The eventful life of a luminous galaxy at z = 14: metal enrichment, feedback, and low gas fraction?

Stefano Carniani, Francesco D'Eugenio, Xihan Ji +25

JADES-GS-z14-0 is the most distant spectroscopically confirmed galaxy yet, at . With a UV magnitude of -20.81, it is one of the most luminous galaxies at cosmic dawn and its…

astro-ph.GA2024★ 30 cited

An Hα view of galaxy build-up in the first 2 Gyr: luminosity functions at z~4-6.5 from NIRCam/grism spectroscopy

Alba Covelo-Paz, Emma Giovinazzo, Pascal A. Oesch +22

The Hα nebular emission line is an optimal tracer for recent star formation in galaxies. With the advent of JWST, this line has recently become observable at z>3 for the first time…

astro-ph.GA2024★ 14 cited

UNCOVERing the High-redshift AGN Population among Extreme UV Line Emitters

Helena Treiber, Jenny Greene, John R. Weaver +23

JWST has revealed diverse new populations of high-redshift () AGN and extreme star-forming galaxies that challenge current models. In this paper, we use rest-frame UV em…

astro-ph.GA2024★ 18 cited

Extreme Ionizing Properties of Metal-Poor, Muv ~ -12 Star Complex in the first Gyr

E. Vanzella, F. Loiacono, M. Messa +38

We report the serendipitous discovery of a faint (M_UV > -12.2), low-metallicity (Z ~ 0.02 Zsun), ionizing source (dubbed T2c) with a spectroscopic redshift of z=6.146. T2c is part…

astro-ph.GA2024★ 36 cited

The Extreme Low-mass End of the Mass-Metallicity Relation at

Iryna Chemerynska, Hakim Atek, Pratika Dayal +17

The mass-metallicity relation (MZR) provides crucial insights into the baryon cycle in galaxies and provides strong constraints on galaxy formation models. We use \jwst\ NIRSpec ob…

astro-ph.HE2024★ 34 cited

Triggering the Untriggered: The First Einstein Probe-Detected Gamma-Ray Burst 240219A and Its Implications

Yi-Han Iris Yin, Bin-Bin Zhang, Jun Yang +49

The Einstein Probe (EP) achieved its first detection and localization of a bright X-ray flare, EP240219a, on 2024 February 19, during its commissioning phase. Subsequent targeted s…