Results 81 to 90 of about 2,250,218 (355)

GALAXY CLUSTER BARYON FRACTIONS REVISITED [PDF]

, 2013
We measure the baryons contained in both the stellar and hot-gas components for 12 galaxy clusters and groups at z ∼ 0.1 with M = 1–5 × 1014 M☉.
Anthony H. Gonzalez, S. Sivanandam, A. Zabludoff, D. Zaritsky   +3 more
semanticscholar   +1 more source

The Clustering of Galaxies

Publications of the Astronomical Society of the Pacific, 1961
Inspecti of photographs obtained with wide-angle telescopes sho' that the distribution of galaxies over the sky is distinctly nt miform. The observed dumpiness of the distribution of ga ies is believed to be due to a tendency for galaxies to occur in sters. A cluster of galaxies is usually regarded as a distinct >e of aggregate of matter.
openaire   +4 more sources

INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]

The Astrophysical Journal, 2009
We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Changbom Park, Ho Seong Hwang
openaire   +3 more sources

Copper Stress Response of Antibiotic‐Resistant and Copper‐Tolerant Enterococcus faecium and the Antibacterial Efficacy of Functionalized Copper Surfaces

Advanced Materials Interfaces, EarlyView.
This study examines how different laser‐patterned copper and brass surfaces, including copper coatings, affect the survival of vancomycin‐resistant Enterococcus faecium. Using microscopy and genome analysis, the results show that copper tolerance varies between strains and can increase after vancomycin exposure.
Franca Arndt, Katharina Siems, Stella Marie Timofeev, Philippe Baumann, Aisha Saddiqa Ahmed, Daniel Wyn Müller, Frank Mücklich, Aaron Haben, Ralf Kautenburger, Ronja Anton, Christoph Schaudinn, Michael Laue, Oliver Schwengers, Katharina Runzheimer, Rocío Arazo del Pino, Kyriaki Xanthopoulou, Paul G. Higgins, Stefan Leuko, Alessa Lalinka Boschert   +18 more
wiley   +1 more source

CCD Photometry of the Globular Cluster NGC 4372 [PDF]

Journal of Astronomy and Space Sciences, 1994
We present a deep (B, V) color-magnitude diagram (CMD) of the Galactic globular cluster NGC 4372. According to the recent inside-out picture of Galaxy formation, this cluster is predicted to be one of the oldest globular clusters in the Galaxy.
Hong-Suh Yim, Young-Wook Lee, Mun-Suk Chun   +2 more
doaj  

Some Properties of Galaxy Structures

Open Astronomy, 2011
We analysed some properties of galaxies structures based on the PF catalog of galaxy structures (Panko & Flin 2006) and the Tully NBG catalog (Tully 1988).
Flin Piotr, Biernacka Monika, Godłowski Włodzimierz, Panko Elena, Piwowarska Paulina   +4 more
doaj   +1 more source

MORPHOLOGICAL TYPES OF 254 RICH PF GALAXY CLUSTERS

Odessa Astronomical Publications, 2014
We determined the morphological types for 254 rich galaxy clusters from the PF Catalogue of Galaxy Clusters and Groups. The data set contains the PF galaxy clusters, which have no ACO coinciding ones.
E. A. Panko, S. M. Andrievsky, A. V. Gotsulyak   +2 more
doaj   +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

, 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
Abadi, Abazajian, Adami, Adami, Andreon, Andreon, Andreon, Beers, Bekki, Bennett, Biviano, Biviano, Blanton, Butcher, Butcher, Carlberg, Couch, Couch, Czoske, Danese, Dressler, Ellingson, Fabricant, Farouki, Fasano, Finn, Fujita, Fujita, Fujita, Gal, Goto, Goto, Goto, Goto, Goto, Goto, Goto, Goto, Goto, Goto, Goto, Gunn, Gómez, Icke, Jones, Kauffmann, Kauffmann, Kennicutt, Kent, Kodama, Kodama, Lares, Larson, Lavery, Makino, Mamon, Mamon, Margoniner, Margoniner, McIntosh, Moore, Moore, Ostriker, Poggianti, Postman, Postman, Postman, Quilis, Rakos, Schlegel, Shimasaku, Sodre, Stein, Strateva, Tanaka, Tomotsugu Goto, Treu, van Dokkum, Yamauchi, Zabludoff   +79 more
core   +1 more source

Mind the Gap: Tightening the Mass-Richness Relation with Magnitude Gaps [PDF]

, 2013
We investigate the potential to improve optical tracers of cluster mass by exploiting measurements of the magnitude gap, m12, defined as the difference between the r-band absolute magnitude of the two brightest cluster members.
Abazajian, Allen, Andreas A. Berlind, Andrew P. Hearin, Andrew R. Zentner, Becker, Behroozi, Berlind, Blanton, Conroy, D'Onghia, Gladders, Hearin, Jeffrey A. Newman, Jones, Klypin, Koester, Kravtsov, Newman, Paranjape, Proctor, Reyes, Riebe, Rozo, Rozo, Rykoff, Skibba, Tinker, Trujillo-Gomez, Watson, Weinberg, Wu, Yang, Zentner   +33 more
core   +1 more source

SPECTROSCOPIC CONFIRMATION OF THE RICH z = 1.80 GALAXY CLUSTER JKCS 041 USING THE WFC3 GRISM: ENVIRONMENTAL TRENDS IN THE AGES AND STRUCTURE OF QUIESCENT GALAXIES [PDF]

, 2013
We present Hubble Space Telescope imaging and grism spectroscopy in the field of the distant galaxy cluster JKCS 041 using the Wide Field Camera 3.
A. Newman, R. Ellis, S. Andreon, T. Treu, A. Raichoor, G. Trinchieri   +5 more
semanticscholar   +1 more source