activity
20192026
most citedThe Absence of [CII] 158m Emission in Spectroscopically-Confirmed Galaxies at

72 citations · 147 across the 35 of their papers we have counts for

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Showing 2025Show all

17 papers · 1 filter

astro-ph.GA2025

Probing Infrared eXcess to Investigate Early-Universe Dust (PIXIEDust)

Tom J. L. C. Bakx, Hiddo S. B. Algera, Jean-Baptiste Jolly +25

Despite the implied presence of dust through reddened UV emission in high-redshift galaxies, no dust emission has been detected in the (sub)millimetre regime beyond . This…

astro-ph.GA2025

A first systematic study of [OIII] 88m at : two luminous oxygen lines and a powerful ionized outflow in the first 600 million years

Hiddo S. B. Algera, John R. Weaver, Tom J. L. C. Bakx +35

We present deep ALMA Band 7 observations of the [OIII] m line and underlying dust continuum emission in four UV-bright, gravitationally lensed (magnification ), JW…

astro-ph.GA2025

A warm ultra-luminous infrared galaxy just 600 million years after the Big Bang

T. J. L. C. Bakx, Laura Sommovigo, Yoichi Tamura +24

We present an Atacama Large Millimeter/submillimeter Array (ALMA) Band 9 continuum detection () of MACS0416_Y1 that confirms the suspected warm dust (91 K) of…

astro-ph.GA2025

RIOJA. Young Starburst and Ionized Gas Outflows in a Galaxy Uncovered by JWST NIRCam and NIRSpec Observations

Yi W. Ren, Akio K. Inoue, Javier Álvarez-Márquez +21

We present analysis of JWST NIRCam and NIRSpec observations of the galaxy SXDF-NB1006-2 at , as part of the Reionization and the ISM/Stellar Origins with JWST and ALMA (…

astro-ph.GA2025

ELPIS: Accelerated metal and dust enrichment in a proto-cluster core at

Hideki Umehata, Yoichi Tamura, Yoshinobu Fudamoto +17

We present a study of the metal, dust, and molecular gas content in galaxies within the A2744-z7p9OD proto-cluster at z ~ 7.88. We focus on two galaxy groups, the Quintet and the C…

astro-ph.GA2025

Early massive galaxy formation in the core of a galaxy protocluster 650 million years after the Big Bang

Yoshinobu Fudamoto, Yurina Nakazato, Daniel Ceverino +24

Rest-frame optical observations with the James Webb Space Telescope (JWST) have uncovered a population of massive galaxies, exceeding solar masses, present less than a bi…

astro-ph.GA2025★ 9 cited

JWST spectroscopic confirmation of the Cosmic Gems arc at z=9.625 -- Insights into the small scale structure of a post-burst system

M. Messa, E. Vanzella, F. Loiacono +30

We present JWST/NIRSpec integral field spectroscopy of the Cosmic Gems arc, strongly magnified by the galaxy cluster SPT-CL J06155746. Six-hour integration using NIRSpec prism s…

astro-ph.GA2025★ 9 cited

The z = 9.625 Cosmic Gems Galaxy was a "Compact Blue Monster" Propelled by Massive Star Clusters

E. Vanzella, M. Messa, A. Adamo +36

The recent discovery of five massive stellar clusters at z=9.625 in the Cosmic Gems has raised the question about the formation mechanism of star clusters in the first half Gyr aft…

astro-ph.GA2025

RIOJA. JWST and ALMA unveil the inhomogeneous and complex ISM structure in a star-forming galaxy at

Mitsutaka Usui, Ken Mawatari, Javier Álvarez-Márquez +21

We report the discovery of a complex, density-stratified interstellar medium (ISM) in the star-forming galaxy COS-2987 at , revealed by the unprecedented synergy between…

astro-ph.GA2025

RIOJA. A Clumpy Galaxy Assembly at Redshift 6.81 Revealed by JWST

Ken Mawatari, Luca Costantin, Mitsutaka Usui +21

Spatially resolved multi-wavelength analysis is essential to study galaxy formation and evolution. A UV-bright galaxy COS-2987030247 at is one of the Rosetta Stones in t…

astro-ph.GA2025★ 1 cited

Compact Ionized Gas Region Surrounded by Porous Neutral Gas in a Dusty Lyman Break Galaxy at Redshift

Masato Hagimoto, Yoichi Tamura, Akio K. Inoue +9

Porous interstellar medium (ISM) structure in galaxies at the epoch of reionization (EoR) gives us a hint to understand what types of galaxies contribute to reionization. Although…

astro-ph.CO2025

The first direct imaging of the silhouette of a damped Lyman system along the line-of-sight to a background galaxy

Fuga Komori, Akio K. Inoue, Ken Mawatari +7

The H~{\sc i} gas distribution in damped Lyman absorbers (DLAs) has remained elusive due to the point-source nature of background quasar emission. Observing DLAs against spatia…

astro-ph.GA2025★ 1 cited

Unveiling the Ionized and Neutral ISM at z > 10 : The Origin of [O III] /[C II] Ratios from a Sub-parsec Resolution Radiative Transfer Simulation

Yurina Nakazato, Kazuyuki Sugimura, Akio K. Inoue +1

Recent multi-wavelength observations by JWST and ALMA are unveiling both ionized and neutral ISM components in high-redshift () galaxies. In this work, we investigate the orig…

astro-ph.GA2025★ 9 cited

A Cosmic Miracle: A Remarkably Luminous Galaxy at Confirmed with JWST

Rohan P. Naidu, Pascal A. Oesch, Gabriel Brammer +43

JWST has revealed a stunning population of bright galaxies at surprisingly early epochs, , where few such sources were expected. Here we present the most distant example of t…

astro-ph.GA2025★ 1 cited

ALMA Observations of [OI]145um and [NII]205um Emission lines from Star-Forming Galaxies at

Yoshinobu Fudamoto, Akio K. Inoue, Rychard Bouwens +21

We present results of new observations of [OI]145um and [NII]205um emission lines from four star-forming galaxies at redshifts between and that have previous detect…

astro-ph.GA2025★ 2 cited

Bridging Quasars and Little Red Dots: Insights into Broad-Line AGNs at from the First JWST COSMOS-3D Dataset

Xiaojing Lin, Xiaohui Fan, Feige Wang +30

We report the discovery of 13 broad-line AGNs at from the first 10% data of the JWST Cycle 3 Treasury Program COSMOS-3D. These AGNs are identified by their broad H o…

astro-ph.GA2025★ 14 cited

A "Black Hole Star" Reveals the Remarkable Gas-Enshrouded Hearts of the Little Red Dots

Rohan P. Naidu, Jorryt Matthee, Harley Katz +48

The physical processes that led to the formation of billion solar mass black holes within the first 700 million years of cosmic time remain a puzzle. Several theoretical scenarios…