Results 111 to 120 of about 29,694 (211)

Evolution of Massive Red Galaxies in Clusters from z = 1.0 to z = 0.3

open access: yesThe Astronomical Journal
A critical issue in studying the evolution of galaxy clusters is to find ways that enable meaningful comparisons of clusters observed at different redshifts, as well as in various stages of their growth.
Yen-Ting Lin   +4 more
doaj   +1 more source

Reexamination of the CO Absorption Line in the M87 Nucleus

open access: yesThe Astrophysical Journal
We analyzed the archival Atacama Large Millimeter/submillimeter Array data of the nuclear region of M87 and evaluated the molecular gas content from the CO(2–1) absorption line.
Norita Kawanaka   +2 more
doaj   +1 more source

A Study of Catalogued Nearby Galaxy Clusters in the SDSS-DR4: I. Cluster Global Properties

open access: yes, 2007
We have selected a sample of 88 nearby (z 800$ km s$^{-1}$). However, the local environment could play a key role in galaxy evolution for low mass clusters.Comment: 19 pages, 11 figures, accepted for publication in A&
Abraham   +105 more
core   +1 more source

The Stellar Mass Function for Nine Massive Galaxy Clusters in the Local Universe

open access: yesThe Astrophysical Journal
We measure galaxy stellar mass functions (SMFs) for nine of the most massive galaxy clusters in the local Universe (0.07 
Jong-In Park   +4 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

High-redshift Merger-induced Bar-like Galaxies in IllustrisTNG

open access: yesThe Astrophysical Journal Letters
Recent discoveries made with JWST observations include a significant number of barred galaxies at high redshift. Their origin remains unclear, and their presence seems difficult to reproduce in cosmological simulations of galaxy formation and evolution ...
Ewa L. Łokas
doaj   +1 more source

PEARLS: Globular Clusters and Ultracompact Dwarfs in the El Gordo Galaxies at z = 0.87

open access: yesThe Astrophysical Journal
JWST/NIRCam 0.9 to 2.0 μ m images reveal a population of point sources around the major galaxies in the El Gordo cluster at redshift z = 0.87. Their distribution in the color–magnitude diagrams shows a narrow sequence well separated from field-galaxy ...
William E. Harris   +13 more
doaj   +1 more source

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

CO deficiency in galaxies of the Fornax cluster? [PDF]

open access: yes
There is ample observational evidence that cluster galaxies are different from those in the field. Interaction with the hot intracluster medium affects the morphology of the galaxies, their gaseous content and possibly their star-formation activity ...
Casoli, Fabienne   +2 more
core   +1 more source

Star formation activities in early-type brightest cluster galaxies

open access: yes, 2012
We identify a total of 120 early-type Brightest Cluster Galaxies (BCGs) at 0 ...
Allen   +91 more
core   +1 more source

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