Results 41 to 50 of about 10,753 (215)
The Astrophysical JournalWe present a comprehensive study of the galaxy size–stellar mass relation (SMR) at low redshift ( z ≤ 0.125), using a large spectroscopic sample from the Sloan Digital Sky Survey Data Release 13 (SDSS DR13).
Mohamed H. Abdullah +3 more
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Massive star clusters in the semi-analytical galaxy formation model L-Galaxies 2020
Astronomy & AstrophysicsIt has been established that a direct link exists between the formation history of star cluster populations and their host galaxies. However, our lack of understanding of the assembly of star cluster populations impedes our ability to use them as tracers
Hoyer Nils +9 more
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THE ELLIPTICITIES OF GALAXIES IN GALAXY CLUSTERS OF DIFFERENT MORPHOLOGICAL TYPE
Odessa Astronomical Publications, 2014 The distribution of galaxy ellipticities was analyzed for 207 rich PF galaxy clusters found in the Munster Red Sky Survey Galaxy Catalogue. Clusters with BM types from a comparison with the ACO catalogue were also classified on the new scheme.
E. A. Panko, P. Flin
doaj +1 more source
GALAXY CLUSTERS AT HIGH REDSHIFT AND EVOLUTION OF BRIGHTEST CLUSTER GALAXIES [PDF]
The Astrophysical Journal, 2011 Identification of high redshift clusters is important for studies of cosmology and cluster evolution. Using photometric redshifts of galaxies, we identify 631 clusters from the Canada-France-Hawaii Telescope (CFHT) Wide field, 202 clusters from the CHFT Deep field, 187 clusters from the Cosmic Evolution Survey (COSMOS) and 737 clusters from the Spitzer
Wen, Z. L., Han, J. L.
openaire +2 more sources
Astronomische Nachrichten, EarlyView.ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar +3 more
wiley +1 more source
The Shocking Features in the Closest Rich Galaxy Cluster Norma
The Astrophysical JournalThe merger shocks generated by the collision of galaxy clusters elevate the pressure within the intracluster medium, significantly influencing the evolution of embedded cluster galaxies.
Chong Ge +4 more
doaj +1 more source
Evolution of clusters of galaxies
The Astrophysical Journal, 1991 In hierarchical models for structure formation like CDM, the mass scale of clustering evolves rapidly and clusters in the past are predicted to be less massive, but denser and more numerous. The indication from optical searches is that the cluster population is roughly stable in that high velocity dispersion clusters seem to be about as abundant at z ~
openaire +1 more source
Evolution of galaxies in clusters
The Astrophysical Journal, 1994 33 pages, normal ...
Charlot, S., Silk, J.
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The “Sausage” and “Toothbrush” clusters of galaxies and the prospects of LOFAR observations of clusters of galaxies [PDF]
Astronomische Nachrichten, 2013 AbstractLOFAR, the Low Frequency Radio Array, is a new pan‐European radio telescope that is almost fully operational. One of its main drivers is to make deep images of the low frequency radio sky. To be able to do this a number of challenges need to be addressed. These include the high data rates, removal of radio frequency interference, calibration of
Jackson, Neal +30 more
openaire +7 more sources
Revisiting Variable Stars Toward the Globular Cluster NGC 6496 With ATLAS and Gaia Photometry
Astronomische Nachrichten, EarlyView.ABSTRACT We revisit 13 variable stars in the field of the metal‐rich globular cluster NGC 6496, discovered by Abbas et al. (2015; Astronomical Journal 149:40) (hereafter referred to as “MA15”) via time‐series data, spanning 2 years. We improve upon the MA15 characterization of the variables using ATLAS time‐series photometry data, spanning 8 years, in ...
Madison E. Martin +2 more
wiley +1 more source