Results 121 to 130 of about 1,986 (217)
Coevolution of intracluster light and brightest cluster galaxies
Astronomy & AstrophysicsContext. Intracluster light (ICL) is a faint stellar component of galaxy groups and clusters bound to the cluster potential, making up a significant fraction of the cluster mass. The ICL formation and evolution is strongly linked to the brightest cluster galaxies (BCGs) of clusters.
Rebecca J. Mayes +2 more
openaire +2 more sources
A Large Mass of H_2 in the Brightest Cluster Galaxy in Zwicky 3146 [PDF]
, 2006 We present the Spitzer/IRS mid-infrared spectrum of the infrared-luminous (L_(IR) = 4 × 10^(11) L_☉) brightest cluster galaxy (BCG) in the X-ray-luminous cluster Zwicky 3146 (Z3146; z = 0.29).
Fadda, D. +3 more
core
Spectroscopic and X-ray Modeling of the Strong Lensing Galaxy Cluster MACS J0138.0-2155
The Open Journal of AstrophysicsWe model the total mass and galactic substructure in the strong lensing galaxy cluster MACS J0138.0-2155 using a combination of Chandra X-ray data, Multi-Unit Spectroscopic Explorer (MUSE) spectroscopy, and Hubble Space Telescope imaging.
Abigail Flowers +4 more
doaj +1 more source
Galaxy Superclusters Detected in the Modified PF-Catalog Using the FOF Method
Open Astronomy, 2011 The Modified Catalog of Galaxy Clusters and Groups (Panko & Flin 2006, PF), covering an area of 5000 square degrees in the southern sky, was used as the input for the search of galaxy superclusters.
Panko E.
doaj +1 more source
PEARLS: Globular Clusters and Ultracompact Dwarfs in the El Gordo Galaxies at z = 0.87
The Astrophysical JournalJWST/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
Brightest Cluster Galaxy Formation in Low-Redshift Galaxy Clusters
, 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
Forged by Feedback: Stellar Properties of Brightest Group Galaxies in Cosmological Simulations
The Astrophysical JournalWe investigate how different galaxy formation models impact the stellar properties of brightest group galaxies (BGGs) in four cosmological simulations: R omulus , S imba , S imba -C, and O bsidian .
Ruxin Barré +9 more
doaj +1 more source
The Astrophysical JournalWe use the L-GALAXIES semianalytic model to investigate the evolution of brightest cluster galaxies (BCGs) found in clusters at z ∼ 0. BCGs are typically located in the central region of galaxy clusters, near the bottom of the potential well, exposing ...
Marcelo C. Vicentin +5 more
doaj +1 more source
XRISM Reveals Low Nonthermal Pressure in the Core of the Hot, Relaxed Galaxy Cluster A2029
The Astrophysical Journal LettersWe present XRISM Resolve observations of the core of the hot, relaxed galaxy cluster Abell 2029 (A2029). We find that the line-of-sight bulk velocity of the intracluster medium (ICM) within the central 180 kpc is at rest with respect to the brightest ...
XRISM Collaboration +138 more
doaj +1 more source
Environmental Imprints on the Assembly of the Cool Gas around Bright Cluster Galaxies
The Astrophysical Journal LettersGalaxy clusters represent extreme cosmic laboratories where environmental processes dramatically reshape their constituent galaxies, yet their effect on the gaseous halos of central galaxies remains poorly constrained.
Runyu Zhu +16 more
doaj +1 more source