Results 101 to 110 of about 887 (163)

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

Alignment Effects of Brightest Cluster Galaxies [PDF]

open access: bronze, 1988
D. G. Lambas   +2 more
openalex   +1 more source

Using Neural Networks to Automate the Identification of Brightest Cluster Galaxies in Large Surveys

open access: yesThe Astrophysical Journal
Brightest cluster galaxies (BCGs) lie deep within the largest gravitationally bound structures in existence. Though some cluster finding techniques identify the position of the BCG and use it as the cluster center, other techniques may not automatically ...
Patrick Janulewicz   +2 more
doaj   +1 more source

The Manhattan Suite: Accelerated Galaxy Evolution in the Early Universe

open access: yesThe Astrophysical Journal
Observational advances have allowed the detection of galaxies, protoclusters, and galaxy clusters at higher and higher redshifts, opening a new view into extreme galaxy evolution.
Douglas Rennehan
doaj   +1 more source

A Multiwavelength Approach to Constraining the Merger Properties of ACT-CL J0034.4+0225

open access: yesThe Astrophysical Journal
ACT-CL J0034.4+0225 is a previously unrecognized merging galaxy cluster at z = 0.38588 ± 0.00068. Our primary evidence is provided by a 21 ks Chandra image that shows two surface brightness peaks separated by ∼49″ (259 kpc) surrounded by an extended ...
Peter Doze   +12 more
doaj   +1 more source

Fundamental parameters of brightest cluster galaxies

open access: yesThe Astrophysical Journal, 1991
Photometry and spectroscopy of a sample of the brightest cluster galaxies (BCGs) are presented, and the relationships between scale length, surface brightness, velocity dispersion, and line strength are determined and compared with the relations determined for lower luminosity ellipticals (LLEs).
John G. Hoessel, W. R. Oegerle
openaire   +2 more sources

A New Dissociative Galaxy Cluster Merger: RM J150822.0+575515.2

open access: yesThe Astrophysical Journal
Galaxy cluster mergers that exhibit clear dissociation between their dark matter, intracluster gas, and stellar components are great laboratories for probing dark matter properties.
Rodrigo Stancioli   +3 more
doaj   +1 more source

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