Results 151 to 160 of about 88,791 (299)

Selecting Clusters and Protoclusters via Stellar Mass Density. II. Application to HSC-SSP Observations

open access: yesThe Astrophysical Journal
We present a selection of candidates of clusters and protoclusters of galaxies identified in the photometric data of the HSC-SSP Wide Public Data Release 3 (PDR3), spanning the redshift range 0.1 ≤ z ≤ 2. The selection method, detailed in Vicentin et al.,
Marcelo C. Vicentin   +4 more
doaj   +1 more source

Radio Galaxy Zoo: The Distortion of Radio Galaxies by Galaxy Clusters

open access: yes, 2019
We study the impact of cluster environment on the morphology of a sample of 4304 extended radio galaxies from Radio Galaxy Zoo. A total of 87% of the sample lies within a projected 15 Mpc of an optically identified cluster.
Andernach, Heinz   +11 more
core   +1 more source

COSMIC: A Galaxy Cluster–Finding Algorithm Using Machine Learning

open access: yesThe Astrophysical Journal Supplement Series
Building a comprehensive catalog of galaxy clusters is a fundamental task for studies on structure formation and galaxy evolution. In this paper, we present Cluster Optical Search using Machine Intelligence in Catalogs (COSMIC), an algorithm utilizing ...
Da-Chuan Tian   +3 more
doaj   +1 more source

The transformation of Spirals into S0 galaxies in the cluster environment

open access: yesFrontiers in Astronomy and Space Sciences, 2015
We discuss the observational evidences of the morphological transformation of Spirals into S0 galaxies in the cluster environment exploiting two big databases of galaxy clusters: WINGS (0 ...
Mauro eD'onofrio   +2 more
doaj   +1 more source

Brightest Cluster Galaxy Formation in Low-Redshift Galaxy Clusters

open access: yes, 2001
4 pages, 1 figure, Contribution to "Tracing Cosmic Evolution with Galaxy Clusters" (Sesto2001), ASP Conference ...
Barkhouse, Wayne A.   +2 more
openaire   +2 more sources

Precision MARS Mass Reconstruction of A2744: Synergizing the Largest Strong-lensing and Densest Weak-lensing Data Sets from JWST

open access: yesThe Astrophysical Journal
We present a new high-resolution free-form mass model of A2744 that combines both weak-lensing (WL) and strong-lensing (SL) data sets from JWST. The SL data set comprises 286 multiple images, presenting the most extensive SL constraint to date for a ...
Sangjun Cha   +4 more
doaj   +1 more source

Major Mergers Mean Major Offset: Drivers of Intrinsic Scatter in the MGCS–Mh Scaling Relation for Massive Elliptical Galaxies

open access: yesThe Astrophysical Journal
In this work, we determine the total globular cluster (GC) counts and globular cluster system (GCS) total mass estimates for 27 extremely massive elliptical galaxies.
Veronika Dornan, William E. Harris
doaj   +1 more source

Correlations in Relaxed Clusters of Galaxies

open access: yesOpen Astronomy, 2014
The correlations among different quantities in galaxy clusters, observed by Newman et al. (2013a,b), are investigated. We find an anti-correlation among the slope α, the effective radius, Re, and a correlation among the core radius rcore and Re. Moreover,
Babyk Iu., Del Popolo A.
doaj   +1 more source

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