Results 1 to 10 of about 536,073 (373)
, 2016 Just after WWII Astronomy started to live its "Golden Age", not differently to many other sciences and human activities, especially in the west side countries. The improved resolution of telescopes and the appearance of new efficient light detectors (e.g. CCDs in the middle eighty) greatly impacted the extragalactic researches.
D'ONOFRIO, MAURO +20 more
openaire +7 more sources
Radio Galaxy Zoo: The Distortion of Radio Galaxies by Galaxy Clusters [PDF]
The Astronomical Journal, 2019 Abstract 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. Brightest cluster galaxies (BCGs) are more likely than other cluster members to be radio sources, and are ...
Ray P. Norris +13 more
openaire +5 more sources
The κ-Model under the Test of the SPARC Database
UniverseOur main goal here is to conduct a comparative analysis between the well-known MOND theory and a more recent model called the κ-model. An additional connection, between the κ-model and two other novel MOND-type theories, Newtonian Fractional-Dimension ...
Gianni Pascoli
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2020 When faced with the investigation of the preferential binding of a series of ligands against a known target, the solution is not always evident from single structure analysis.
Christopher B. Barnett +2 more
doaj +1 more source
Galaxy Properties in Clusters: Dependence on the Environment and the Cluster Identification Techniques [PDF]
, 2009 We investigate the dependence of several galaxy properties on the environment and cluster identification techniques. We select clusters of galaxies from two catalogues based on the SDSS: the ROSAT-SDSS Galaxy Cluster Survey, and the MaxBCG Catalogue. Based on a volume limited sample of galaxies drawn from the spectroscopic DR5 SDSS, we constructed sub ...
arxiv +1 more source
Velocity Dispersion of 335 Galaxy Clusters Selected from the Sloan Digital Sky Survey: Statistical Evidence for Dynamical Interaction, and Against Ram-Pressure Stripping [PDF]
Mon.Not.Roy.Astron.Soc. 359 (2005) 1415-1420, 2005 There has been plenty of observational evidence of cluster galaxy evolution. However, it has been difficult to identify the origin of the cluster galaxy evolution. Here we show that gravitational interaction/friction between galaxies is the statistically dominant physical mechanism responsible for the cluster galaxy evolution, and that the well-favored
arxiv +1 more source
Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample [PDF]
, 2009 The spectroscopic Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) galaxy sample represents the final set of galaxies observed using the original SDSS target selection criteria. We analyse the clustering of galaxies within this sample, including both
W. Percival +27 more
semanticscholar +1 more source
Galaxies and subhaloes in ΛCDM galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 6 pages, 2 figures, accepted for publication in Monthly Notices Letters.
G. De Lucia +3 more
openaire +4 more sources
The Fastest Galaxy Evolution in an Unbiased Compact Group Sample with WISE [PDF]
, 2017 We study the mid-infrared (MIR) properties of galaxies in compact groups and their environmental dependence using the \textit{Wide-field Infrared Survey Explorer (WISE)} data. We use a volume-limited sample of 670 compact groups and their 2175 member galaxies with $M_r< -19.77$ and $0.01
arxiv +1 more source
The 2dF Galaxy Redshift Survey: power-spectrum analysis of the final data set and cosmological implications [PDF]
, 2005 We present a power-spectrum analysis of the final 2dF Galaxy Redshift Survey (2dFGRS), employing a direct Fourier method. The sample used comprises 221 414 galaxies with measured redshifts.
S. Cole +31 more
semanticscholar +1 more source