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20232026
most citedGalaxy Build-up in the first 1.5 Gyr of Cosmic History: Insights from the Stellar Mass Function at from JWST NIRCam Observations

98 citations · 271 across the 29 of their papers we have counts for

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35 papers · 1 filter

astro-ph.GA2026

Sleeping or Dead? Probing the Quenching Mechanism of JWST Dormant Galaxies at z > 3 with ALMA

Mengyuan Xiao, Songnan Qi, Pascal A. Oesch +16

JWST has revealed a population of "dormant'' galaxies at z>3 with strong Balmer breaks and weak emission lines, whose star formation appears to have declined only recently. Whether…

astro-ph.GA2026

The DAWN JWST Archive: A spectroscopically-informed population study of the physical properties of galaxies at z>2

Rashmi Gottumukkala, Gabriel Brammer, Sune Toft +30

Charting the evolution of star-formation, stellar mass and dust build-up over cosmic time relies on the accurate characterisation of the stellar population properties of high redsh…

astro-ph.GA2026

A tidal disruption event in a quasar at redshift 7.19

S. Fujimoto, Q. Fei, G. B. Brammer +41

We report a long-lived nuclear transient in GNz7q, a red quasar at powered by a black hole and hosted by a compact, dusty starburst galaxy. Th…

astro-ph.GA2026

From Starburst to Quenching: Physical Properties of Extremely Compact Starbursts at z0.1

Can Xu, Mengyuan Xiao, Min Bao +5

The compaction phase plays a crucial role in galaxy evolution, as it is strongly linked to star formation activities and structural transformation. We have identified a sample of e…

astro-ph.GA2026

Spatial decomposition of Little Red Dots with JWST/NIRSpec IFU into broad-line red cores and narrow-line blue host galaxies

Yuzo Ishikawa, Anna-Christina Eilers, Rohan P. Naidu +11

Little Red Dots (LRDs) are a population of compact red sources discovered by the James Webb Space Telescope (JWST). Imaging and spectroscopy have shown that LRDs exhibit a complex…

astro-ph.GA2026

A Census of the 200 Most Massive Galaxies Spectroscopically Observed with JWST at zspec 3-15

Mengyuan Xiao, Pascal A. Oesch, Longji Bing +26

Massive galaxies provide strong tests of galaxy formation models, yet a comprehensive spectroscopic view of their properties and demographics in the early Universe has remained elu…

astro-ph.GA2026

JWST spectroscopy of galaxies at : Damped Ly absorbers reveal efficient star formation and hidden redshift biases

Kasper E. Heintz, Clara L. Pollock, Joris Witstok +23

Recent observations with JWST have revealed a remarkable population of surprisingly luminous galaxies at redshifts . Their abundance exceed predictions from simulations and e…

astro-ph.GA2026

Little Red Dots as Intermediate Mass, Super-Eddington Engines: Insights from Type IIn Supernovae and The 1837-1856 Great Eruption of Carinae

Rohan P. Naidu, Jorryt Matthee, Anna de Graaff +20

JWST's Little Red Dots (LRDs) display a unique constellation of features that do not occur simultaneously in any other class of galaxies or AGN. Here we observe that many of these…

astro-ph.GA2026

Black Hole Stars Across the Universe: Identifying Central Engine Dominated Little Red Dots at

Andrea Weibel, Rohan P. Naidu, Pascal A. Oesch +16

Photometric selections of Little Red Dots (LRDs) largely rely on identifying their ``V-shaped'' spectral energy distribution (SED). Recent work suggests this V-shape stems from a c…

astro-ph.GA2026

PANORAMIC: The Dawn of Massive Quiescent Galaxies I. Number Density and Cosmic Variance from 1000 arcmin NIRCam Imaging

Zhiyuan Ji, Christina C. Williams, Peter Behroozi +13

We measure the number density and field-to-field variance of massive quiescent galaxies at - 8 using the JWST/NIRCam pure-parallel imaging survey PANORAMIC together with a…

astro-ph.GA2026

A PANORAMIC of UV-optical morphologies of "Little Red Dots": Two groups of LRDs distinguished by UV half-light radius

Aidan P. Cloonan, Katherine E. Whitaker, Sinclaire M. Manning +13

Among the most remarkable results from JWST is the discovery of abundant, compact, and very red sources in the early Universe known as "Little Red Dots" (LRDs). The relative degree…

astro-ph.GA2026

Direct pathway to the Early Supermassive Black Holes: A Red Super-Eddington Quasar in a Massive Starburst Host at

Qinyue Fei, Seiji Fujimoto, Gabriel Brammer +24

We present a panchromatic optical-mm characterization of GNz7q, a recently identified X-ray weak, rapidly growing red quasar embedded within a dusty starburst galaxy at ,…

astro-ph.GA2026

Stellar masses of optically dark galaxies: uncertainty introduced by the attenuation law and star-formation histories

Yash Lapasia, Sandro Tacchella, Francesco D'Eugenio +11

Recent studies using JWST have suggested that some high-redshift galaxies may be ultra-massive, thereby challenging standard models of early galaxy formation. We analyse the stella…

astro-ph.GA2026

From Grism to IFU: Revising the Redshift and Nature of the Massive Dusty Galaxy S1 with JWST and ALMA

Mengyuan Xiao, Longji Bing, Gabriel Brammer +21

We report a revised spectroscopic redshift for the dusty massive galaxy S1, previously inferred with an exceptionally high baryon-to-star conversion efficiency from NIRCam slitless…

astro-ph.GA2025

Stellar Morphology of Optically Dark or Faint Galaxies at with JWST

Arpita Ganguly, Mengyuan Xiao, Pascal A. Oesch +11

JWST offers an unprecedented view of optically dark or faint galaxies (OFGs), previously missed by HST. They are likely massive, heavily dust-obscured star-forming galaxies (SFGs)…

astro-ph.GA2025

Lyman- Visibility During the Epoch of Reionization: Combining JWST FRESCO Grism Data with Keck Archival Spectroscopy

Ecaterina Leonova, Rohan P. Naidu, Pascal A. Oesch +5

The visibility of Lyman- emission at provides crucial insights into the reionization process and the role of galaxies in shaping the ionized intergalactic medium. Using JW…

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★ 1 cited

A first look at a complete view of spatially resolved star formation at 1<z<1.8 with JWST NGDEEP+FRESCO slitless spectroscopy

Jasleen Matharu, Lu Shen, Irene Shivaei +15

[abridged] The previously inaccessible star formation tracer Pa can now be spatially resolved by JWST NIRCam slitless spectroscopy in distant galaxies up to cosmic noon. In the…

astro-ph.GA2025★ 1 cited

Lyman-alpha emission at the end of reionization: line strengths and profiles from MMT and JWST observations at z~5-6

Gonzalo Prieto-Lyon, Charlotte A. Mason, Victoria Strait +8

With JWST, it is now possible to use Lyman-Alpha (Ly) emission from galaxies beyond z>8 to trace neutral hydrogen in the intergalactic medium (IGM) as the Universe became reioni…

astro-ph.GA2025

Diversity and Evolution of Dust Attenuation Curves from Redshift z ~ 1 to 9

Irene Shivaei, Rohan P. Naidu, Francisco Rodriguez Montero +23

The UV-optical dust attenuation curve is key to interpreting the intrinsic properties of galaxies and provides insights into the nature of dust grains and their geometry relative t…

astro-ph.GA2025

Noema formIng Cluster survEy (NICE): A Census of Star Formation and Cold Gas Properties in Massive protoclusters at 1.5<z<4

Luwenjia Zhou, Tao Wang, Emanuele Daddi +36

Massive protoclusters at z~1.5-4, the peak of the cosmic star formation history, are key to understanding the formation mechanisms of massive galaxies in today's clusters. However,…

astro-ph.GA2025

JWST+ALMA reveal the build up of stellar mass in the cores of dusty star-forming galaxies at Cosmic Noon

Sarah Bodansky, Katherine E. Whitaker, Ayesha Abdullah +14

Dusty star-forming galaxies have long been suspected to serve as the missing evolutionary bridge between the star-forming and quiescent phases of massive galaxy evolution. With the…

astro-ph.GA2025★ 10 cited

Exploring Cosmic Dawn with PANORAMIC I: The Bright End of the UVLF at

Andrea Weibel, Pascal A. Oesch, Christina C. Williams +14

In its first two years of operation, the James Webb Space Telescope has enabled the discovery of a surprising number of UV-bright galaxies at . Their number density is…

astro-ph.GA2025★ 15 cited

Constraints on the early Universe star formation efficiency from galaxy clustering and halo modeling of H and [O III] emitters

Marko Shuntov, Pascal A. Oesch, Sune Toft +13

We develop a theoretical framework to provide observational constraints on the early Universe galaxy-halo connection by combining measurements of the UV luminosity function (UVLF)…