209 citations · 1.4k across the 50 of their papers we have counts for
24 papers · 1 filter
Caught in the web: galaxy mergers along cosmic filaments
Carolina Dulcien, Yara L. Jaffe, Jacob P. Crossett +31
Galaxy clusters grow through the accretion of galaxies from groups, filaments, and other clusters. During this process, galaxies may undergo pre-processing in lower-density environ…
Euclid preparation. 3D reconstruction of the cosmic web with simulated Euclid Deep spectroscopic samples
Euclid Collaboration, K. Kraljic, C. Laigle +321
The ongoing Euclid mission aims to measure spectroscopic redshifts for approximately two million galaxies using the H line emission detected in near-infrared slitless spectrosc…
Cross-correlation between soft X-rays and galaxies A new benchmark for galaxy evolution models
Johan Comparat, Andrea Merloni, Gabriele Ponti +11
This article presents the construction and validation of complete stellar mass-selected, volume-limited galaxy samples using the Legacy Survey (data release 10) galaxy catalogs, co…
Euclid Quick Data Release (Q1). Galaxy shapes and alignments in the cosmic web
Euclid Collaboration, C. Laigle, C. Gouin +341
Galaxy morphologies and shape orientations are expected to correlate with their large-scale environment, since they grow by accreting matter from the cosmic web and are subject to…
The impact of assembly history on the X-ray detectability of halos. From galaxy groups to galaxy clusters
I. Marini, P. Popesso, K. Dolag +15
Galaxy groups represent a significant fraction of the halo population, playing a crucial role in galaxy formation and evolution. However, their detection in X-rays remains challeng…
The First SRG/eROSITA All-Sky Survey. Characterization of clusters of galaxies misclassified in the eRASS1 point source catalog
F. Balzer, E. Bulbul, M. Kluge +20
The detection of the extended X-ray-emission of the intracluster medium by the first SRG/eROSITA All-Sky Survey (eRASS1), combined with optical and near-infrared follow-up, resulte…
Detecting clusters and groups of galaxies populating the local Universe in large optical spectroscopic surveys
I. Marini, P. Popesso, K. Dolag +13
Wide-field cosmological surveys provide hundreds of thousands of spectroscopically confirmed galaxy groups and clusters, valuable for tracing baryonic matter distribution. However,…
The Galaxy Group Merger Origin of the Cloverleaf Odd Radio Circle System
E. Bulbul, X. Zhang, M. Kluge +14
Odd radio circles (ORCs) are a newly discovered class of extended faint radio sources of unknown origin. We report the first detection of diffuse X-ray gas at the location of a low…
Nature vs. Nurture: Revisiting the environmental impact on star formation activities of galaxies
Ke Shi, Nicola Malavasi, Jun Toshikawa +1
We present a systematic study of the environmental impact on star formation activities of galaxies using a mass-complete sample of 170k galaxies at from the latest COSM…
Evaluating Lya Emission as a Tracer of the Largest Cosmic Structure at z~2.47
Yun Huang, Kyoung-Soo Lee, Olga Cucciati +13
The discovery and spectroscopic confirmation of Hyperion, a proto-supercluster at z~2.47, provides an unprecedented opportunity to study distant galaxies in the context of their la…
The Role of Dust, UV Luminosity and Large-scale Environment on the Escape of Lya Photons: A Case Study of a Protocluster field at z = 3.1
Yun Huang, Kyoung-Soo Lee, Ke Shi +3
We present a detailed characterization of the Lya properties for 93 Lya emitters (LAEs) at z~3.1 selected from the D1 field of the Canada-France-Hawaii-Telescope Legacy Survey, inc…
Lyman Alpha line properties at and their environmental dependence: a case study around a massive proto-cluster
Nicola Malavasi, Kyoung-Soo Lee, Arjun Dey +3
Ly-emitting galaxies (LAEs) are easily detectable in the high-redshift Universe and are potentially efficient tracers of large scale structure at early epochs, as long as their…
How Do Galaxies trace a large scale structure?: A case study around a massive protocluster at
Ke Shi, Yun Huang, Kyoung-Soo Lee +7
In the hierarchical theory of galaxy formation, a galaxy overdensity is a hallmark of a massive cosmic structure. However, it is less well understood how different types of galaxie…
On the slow quenching of M* galaxies: heavily-obscured AGNs clarify the picture
Thibaud Moutard, Nicola Malavasi, Marcin Sawicki +2
We investigate the connection between X-ray and radio-loud AGNs and the physical properties of their evolved and massive host galaxies, focussing on the mass-related quenching chan…
A census of galaxy constituents in a Coma Progenitor observed at z>3
Ke Shi, Kyoung-Soo Lee, Arjun Dey +15
We present a detailed census of galaxies in and around PC217.96+32.3, a spectroscopically confirmed Coma analog at z=3.78. Diverse galaxy types identified in the field include Lya…
Discovery of a Very Large (~20 kpc) Galaxy at z=3.72
Kyoung-Soo Lee, Arjun Dey, Thomas Matheson +12
We report the discovery and spectroscopic confirmation of a very large star-forming Lyman Break galaxy, G6025, at z_spec=3.721+/-0.003. In the rest-frame ~2100A, G6025 subtends ~24…
On the fast quenching of young low-mass galaxies up to z 0.6: new spotlight on the lead role of environment
Thibaud Moutard, Marcin Sawicki, Stéphane Arnouts +5
We investigate the connection between environment and the different quenching channels that galaxies are prone to follow in the rest-frame NUVrK colour diagram, as identified by Mo…
Galaxy evolution in the metric of the Cosmic Web
K. Kraljic, S. Arnouts, C. Pichon +19
The role of the cosmic web in shaping galaxy properties is investigated in the GAMA spectroscopic survey in the redshift range . The stellar mass, du…
Reconstructing the galaxy density field with photometric redshifts: II. Environment-dependent galaxy evolution since
Nicola Malavasi, Lucia Pozzetti, Olga Cucciati +3
Although extensively investigated, the role of the environment in galaxy formation is still not well understood. In this context, the Galaxy Stellar Mass Function (GSMF) is a power…
COSMOS2015 photometric redshifts probe the impact of filaments on galaxy properties
Clotilde Laigle, Christophe Pichon, Stephane Arnouts +12
The variations of galaxy stellar masses and colour-types with the distance to projected cosmic filaments are quantified using the precise photometric redshifts of the COSMOS2015 ca…
The VIMOS Public Extragalactic Redshift Survey (VIPERS): Galaxy segregation inside filaments at
N. Malavasi, S. Arnouts, D. Vibert +42
We present the first quantitative detection of large-scale filamentary structure at in the large cosmological volume probed by the VIMOS Public Extragalactic Redshif…
The environment of radio sources in the VLA-COSMOS Survey field
Nicola Malavasi, Sandro Bardelli, Paolo Ciliegi +3
This work studies the correlation among environmental density and radio AGN presence up to . Using data from the photometric COSMOS survey and its radio 1.4 GHz follow-up (V…
Reconstructing the galaxy density field with photometric redshifts: I. Methodology and validation on stellar mass functions
Nicola Malavasi, Lucia Pozzetti, Olga Cucciati +2
Measuring environment for large numbers of distant galaxies is still an open problem, for which we need galaxy positions and redshifts. Photometric redshifts are more easily availa…
The environment of radio sources in the VLA-COSMOS Survey field
Nicola Malavasi, Sandro Bardelli, Paolo Ciliegi +3
Several problems regarding the process of galaxy formation are still open. One of them is the role played by AGN phenomena in contributing to galaxy build-up and to Star Formation…