37 citations · 97 across the 20 of their papers we have counts for
23 papers
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…
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…
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…
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…
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 […
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…
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…
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…
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…
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…
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…
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…
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…
ECOGAL I. Project design and the first catalogue
Minju M. Lee, Georgios Magdis, Gabriel Brammer +10
We present ECOology for Galaxies using ALMA archive and Legacy surveys (ECOGAL), an ALMA data mining project. Using the footprints of the James Webb Space Telescope (JWST) and the…
Cosmic Vine: High abundance of massive galaxies and dark matter halos in a forming cluster at z=3.44
Nikolaj B. Sillassen, Shuowen Jin, Georgios E. Magdis +10
The Cosmic Vine is a massive protocluster at z=3.44 in the JWST CEERS field, offering an ideal laboratory for studying the early phases of cluster formation. Using the data from th…
Discovery of a Little Red Dot candidate at in COSMOS-Web based on MIRI-NIRCam selection
Takumi S. Tanaka, Hollis B. Akins, Yuichi Harikane +64
JWST has revealed a new high-redshift population called little red dots (LRDs). Since LRDs may be in the early phase of black hole growth, identifying them in the early universe is…
Novel auroral line measurements extend the gradual offset of the FMR deep into the first Gyr of cosmic time
Clara L. Pollock, Rashmi Gottumukkala, Kasper E. Heintz +15
The mass assembly and chemical enrichment of the first galaxies provide key insights into their star-formation histories and the earliest stellar populations at cosmic dawn. Here w…
Exploring over 700 massive quiescent galaxies at z = 2-7: Demographics and stellar mass functions
William M. Baker, Francesco Valentino, Claudia del P. Lagos +6
High-redshift () massive quiescent galaxies are crucial tests of early galaxy formation and evolutionary mechanisms through their cosmic number densities and stellar mass func…
DAWN JWST Archive: Morphology from profile fitting of over 340 000 galaxies in major fields
Aurélien Genin, Marko Shuntov, Gabe Brammer +7
To better understand how galaxies assemble their structure and evolve over cosmic time, we present a new catalog of morphological measurements for over 340,000 sources spanning $0…
Galaxy Size and Mass Build-up in the First 2 Gyrs of Cosmic History from Multi-Wavelength JWST NIRCam Imaging
Natalie Allen, Pascal A. Oesch, Sune Toft +12
The evolution of galaxy sizes in different wavelengths provides unique insights on galaxy build-up across cosmic epochs. Such measurements can now finally be done at thanks t…
Black hole mass of a quiescent galaxy hosting a Type 1 AGN at z=2.09: Implications for black hole - galaxy co-evolution and AGN quenching at high redshift
Kei Ito, Takumi S. Tanaka, Kazuhiro Shimasaku +6
We report a characterization of an X-ray-detected quiescent galaxy at , named COS-XQG1, using JWST/NIRCam and NIRSpec data. This galaxy is detected in Chandra imaging, sugg…
X-ray stacking reveals average SMBH accretion properties of star-forming galaxies and their cosmic evolution over 4 <~ z <~ 7
Suin Matsui, Kazuhiro Shimasaku, Kei Ito +2
With an X-ray stacking analysis of ~ 12, 000 Lyman-break galaxies (LBGs) using the Chandra Legacy Survey image, we investigate average supermassive black hole (SMBH) accretion prop…
GALAXY CRUISE: Spiral and ring classifications for bright galaxies at z=0.01-0.3
Rhythm Shimakawa, Masayuki Tanaka, Kei Ito +1
This paper presents a morphology classification catalog of spiral and ring features of 59,854 magnitude-limited galaxies ( mag, and additional 628,005 subsamples down to $r…