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Prevalence of radio Active Galactic Nuclei in galaxy groups since z=3.5 in the COSMOS-Web field
F. Ubertosi, I. Delvecchio, I. Prandoni +30
Radio active galactic nuclei (AGN) are key tracers of kinetic feedback from supermassive black holes. Although the dependence of their triggering on host stellar mass is well known…
The Role of the Cosmic Web in Galaxy Evolution Across 0.4<z<4
Sina Taamoli, Bahram Mobasher, Hossein Hatamnia +12
We investigate the dependence of stellar mass and star formation activity on the topology of hosting large-scale structures using mass-complete galaxy samples in four redshift bins…
X-ray Characterization of Galaxy Groups and Hickson Groups in COSMOS-Web to z~3.8 I. X-ray Luminosity Function Evolution
Ghassem Gozaliasl, Günther Hasinger, Gavin Leroy +35
Galaxy groups are the dominant halo environment in the Universe and a sensitive laboratory for feedback and gas-cycling physics, yet a uniform, intermediate-redshift X-ray characte…
CHAMPS: Data Reduction and Detection of ~3300 Dusty Galaxies at 1.2 mm
Felix Martinez, Jeyhan S. Karaltepe, Andreas L. Faisst +52
We present the reduction and source catalogs for the \textit{COSMOS High- ALMA-MIRI Population Survey} (CHAMPS), the largest Atacama Large (Sub)Millimeter Array (ALMA) blank fie…
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…
The Roman eXtreme Deep Field (RXDF)
Haojing Yan, Anton M. Koekemoer, Yue Shen +127
The Roman eXtreme Deep Field (RXDF) program is one of the five General Astrophysics Survey (GAS) programs approved for observing time with the Nancy Grace Roman Space Telescope in…
Photometric redshifts for active galactic nuclei with LePHARE for the Vera C. Rubin Observatory
R. Shirley, M. Salvato, J. Cohen-Tanugi +31
Active Galactic Nuclei (AGN) play a crucial role in galaxy evolution, but they are a minority of extragalactic sources with diverse Spectral Energy Distributions (SEDs), which depe…
COSMOS-Web: From early star-formation enhancement to late suppression in galaxy groups
R. C. Arango-Toro, C. Laigle, J. Lewis +29
Galaxy groups trace dense environments where interactions, gas removal, and reduced accretion may drive quenching. Common diagnostics trace star formation over short timescales ($\…
COSMOS-Web: does halo mass alone shape the clustering of star-forming and quiescent galaxies?
Louise Paquereau, Clotilde Laigle, Henry Joy McCracken +29
While stellar mass correlates strongly with halo mass, it remains unclear whether halo mass alone governs galaxy star-formation activity, or whether secondary halo properties and e…
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…
High-ionization coronal lines trace quasar-like activity in recently quenched galaxies at high redshift
F. Valentino, K. Ito, M. Farcy +31
We report the detection of the high-ionization line [NeV]3427 in the JWST/NIRSpec archival spectra of 6 massive quenched galaxies at , identified from a parent s…
Stochastic star formation activity of galaxies within the first billion years probed by JWST
C. Carvajal-Bohorquez, L. Ciesla, N. Laporte +8
In this work, we aim at characterizing the burstiness level of high-redshift galaxy SFHs and its evolution. We implement a stochastic SFH in CIGALE using PSD, to estimate the burst…
COSMOS-Web: MIRI Data Reduction and Number Counts at 7.7m using JWST
Santosh Harish, Jeyhan S. Kartaltepe, Daizhong Liu +19
The COSMOS-Web survey is the largest JWST Cycle 1 General Observer program covering a contiguous ~0.54 deg area with NIRCam imaging in four broad-band filters and a non-contigu…
Tracing High-z Galaxies in X-rays with JWST and Chandra
A. Kaminsky, N. Cappelluti, G. Hasinger +14
We leverage JWST data from the COSMOS-Web Survey in order to provide updated measurements on the auto-power spectrum of the now resolved Cosmic Infrared Background (CIB) and its co…
Large Scale Structures in COSMOS2020: Evolution of Star Formation Activity in Different Environments at 0.4 < z < 4
Sina Taamoli, Bahram Mobasher, Nima Chartab +15
To study the role of environment in galaxy evolution, we reconstruct the underlying density field of galaxies based on COSMOS2020 (The Farmer catalog) and provide the density catal…
Predicting the Spectroscopic Features of Galaxies by Applying Manifold Learning on Their Broad-Band Colors: Proof of Concept and Potential Applications for Euclid, Roman, and Rubin LSST
Marziye Jafariyazani, Daniel Masters, Andreas Faisst +2
Entering the era of large-scale galaxy surveys which will deliver unprecedented amounts of photometric and spectroscopic data, there is a growing need for more efficient, data driv…
Size - Stellar Mass Relation and Morphology of Quiescent Galaxies at in Public Fields
Kei Ito, Francesco Valentino, Gabriel Brammer +19
We present the results of a systematic study of the rest-frame optical morphology of quiescent galaxies at using the Near-Infrared Camera (NIRCam) onboard . Based…
An Atlas of Color-selected Quiescent Galaxies at in Public Fields
Francesco Valentino, Gabriel Brammer, Katriona M. L. Gould +24
We present the results of a systematic search for candidate quiescent galaxies in the distant Universe in eleven fields with publicly available observations collected during…
COSMOS2020: Discovery of a protocluster of massive quiescent galaxies at
Kei Ito, Masayuki Tanaka, Francesco Valentino +9
Protoclusters of galaxies have been found in the last quarter century. However, most of them have been found through the overdensity of star-forming galaxies, and there had been no…
MIDIS: Strong (Hb + [OIII]) and Ha emitters at redshift unveiled with JWST/NIRCam and MIRI imaging in the Hubble eXtreme Deep Field (XDF)
P. Rinaldi, K. I. Caputi, L. Costantin +44
We make use of \textit{JWST} medium and broad-band NIRCam imaging, along with ultra-deep MIRI imaging, in the Hubble eXtreme Deep Field (XDF) to identify prominent lin…
Evolution of Gas, and Star Formation from z = 0 to 5
Nick Scoville, Andreas Faisst, John Weaver +20
ALMA observations of the long wavelength dust continuum are used to estimate the gas masses in a sample of 708 star-forming (SF) galaxies at z = 0.3 to 4.5. We determine the depend…
COSMOS2020: Identification of High-z Protocluster Candidates in COSMOS
Malte Brinch, Thomas R. Greve, John R. Weaver +20
We conduct a systematic search for protocluster candidates at in the COSMOS field using the recently released COSMOS2020 source catalog. We select galaxies using a numbe…
Investigating the Effect of Galaxy Interactions on Star Formation at 0.5<z<3.0
Ekta A. Shah, Jeyhan S. Kartaltepe, Christina T. Magagnoli +24
Observations and simulations of interacting galaxies and mergers in the local universe have shown that interactions can significantly enhance the star formation rates (SFR) and fue…
A Machine Learning Approach to Predict Missing Flux Densities in Multi-band Galaxy Surveys
Nima Chartab, Bahram Mobasher, Asantha Cooray +21
We present a new method based on information theory to find the optimal number of bands required to measure the physical properties of galaxies with a desired accuracy. As a proof…