activity
20232026
most citedGalaxy Size and Mass Build-up in the First 2 Gyrs of Cosmic History from Multi-Wavelength JWST NIRCam Imaging

37 citations · 97 across the 20 of their papers we have counts for

collaborators
Showing 2026Show all

13 papers · 1 filter

q-fin.TR2026

LOB-Impact Benchmark: Emergent Market Impact in Generative Limit Order Book Models

George Nigmatulin, Valentin Mohl, Sascha Frey +6

Realistic market impact is essential for generative limit order book (LOB) models to serve as world models for trading agents. If a simulator misprices this mechanism, agents learn…

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

CHAMPS: The COSMOS High-Redshift ALMA-MIRI Population Survey - A New Census of the Dusty Early Universe

Andreas L. Faisst, Felix Martinez, Jeyhan S. Kartaltepe +86

Understanding how dust forms and evolves over cosmic time is a key open problem in extragalactic astrophysics. Galaxies in the early Universe were once thought to be mostly dust-po…

astro-ph.GA2026

Anisotropic quenching beyond and its implications for preprocessing around high-redshift galaxy clusters

Makoto Ando, Kazuhiro Shimasaku, Kei Ito +2

Recent studies have shown that, within galaxy clusters, quenched satellite galaxies tend to be distributed preferentially along the major axis of the central galaxy, dubbed anisotr…

astro-ph.GA2026

Extended [CII] gas emission in and around a massive quiescent galaxy at z=7.3

F. Valentino, A. Pensabene, A. Weibel +16

We report the discovery of [CII] 158 micron emission in and around the most distant known massive quiescent galaxy RUBIES-UDS-QG-z7 at z = 7.27. Observed with ALMA in band 6, the […

astro-ph.GA2026

Morphology, sizes, and scatter in a large sample of distant quiescent galaxies

G. Scarpe, F. Valentino, K. Ito +3

After quenching galaxies keep growing in size across time, as established in the literature up to cosmic noon. In this work, we assemble one of the largest and most comprehensive m…

astro-ph.GA2026

Chemical signatures from the first stars embedded in metal-poor gas in galaxies at cosmic dawn

Clara L. Pollock, Kasper E. Heintz, Elka Rusta +15

The first generation of stars formed from pristine, neutral hydrogen gas. The most massive of these exploded as supernovae within a few million years of their birth, producing the…

astro-ph.GA2026

Unveiling the population of massive quenched galaxies at in the COLIBRE simulations - II. The role of AGN feedback and environment on their emergence

Ángel Chandro-Gómez, Claudia del P. Lagos, Chris Power +16

Early () Massive (), Quenched Galaxies (MQGs) challenge current galaxy formation models. In this series, we study these…

astro-ph.GA2026

DeepDive: Simultaneous Formation of Massive Quiescent Galaxies in High-Redshift Galaxy Overdensities

Takumi Kakimoto, Masayuki Tanaka, Kei Ito +20

We report on the spectroscopic confirmation of overdense regions of massive quiescent galaxies (QGs) in the early Universe with JWST/NIRSpec. Based on data from the DeepDive NIRSpe…

astro-ph.GA2026

The role of small-scale environments in the quenching of massive galaxies at

Takumi Kakimoto, Masayuki Tanaka, Makoto Ando +10

Massive quiescent galaxies (QGs) at high redshifts are likely progenitors of massive elliptical galaxies in the local Universe. Recent discoveries of high-redshift QGs in overdensi…

astro-ph.GA2026

The ionised interstellar medium of DSFGs revealed by JWST/NIRSpec and ALMA: Super-solar metallicity, low ionisation parameters and, typical electron densities

Steven Gillman, Kei Ito, Francesco Valentino +25

We present a detailed study of near-infrared (2-4m) JWST/NIRSpec spectra of 48 high-redshift () galaxies detected with ALMA at . From a multi-wa…

astro-ph.GA2026

DeepDive: Tracing the early quenching pathways of massive quiescent galaxies at from their star-formation histories and chemical abundances

Massissilia L. Hamadouche, Katherine E. Whitaker, Francesco Valentino +21

We investigate the chemical abundances and star-formation histories (SFH) of ten massive () quiescent galaxies at usi…

astro-ph.GA2026

Subaru High- Exploration of Low-Luminosity Quasars (SHELLQs). XXV. Large-scale environments of low-luminosity quasars at traced by Ly emitters

Junya Arita, Nobunari Kashikawa, Yoshiki Matsuoka +18

High- quasars are believed to reside in massive dark matter haloes (DMHs), suggesting that they reside in galaxy overdense regions. However, previous observations have shown a r…