Results 81 to 90 of about 2,234,166 (364)

COSMIC: A Galaxy Cluster–Finding Algorithm Using Machine Learning

The Astrophysical Journal Supplement Series
Building a comprehensive catalog of galaxy clusters is a fundamental task for studies on structure formation and galaxy evolution. In this paper, we present Cluster Optical Search using Machine Intelligence in Catalogs (COSMIC), an algorithm utilizing ...
Da-Chuan Tian, Yang Yang, Zhong-Lue Wen, Jun-Qing Xia   +3 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

Infalling groups and galaxy transformations in the cluster A2142

, 2017
We study galaxy populations and search for possible merging substructures in the rich galaxy cluster A2142. Normal mixture modelling revealed in A2142 several infalling galaxy groups and subclusters.
Deshev, Boris, Einasto, Jaan, Einasto, Maret, Gramann, Mirt, Heinämäki, Pekka, Kipper, Rain, Lietzen, Heidi, Park, Changbom, Saar, Enn, Tempel, Elmo   +9 more
core   +1 more source

The descendents of Lyman Break Galaxies in galaxy clusters: spatial distribution and orbital properties [PDF]

, 2000
We combine semi-analytical methods with a ultra-high resolution simulation of a galaxy cluster (of mass 2.3 10^14h-1Msolar, and 4 10^6 particles within its virial radius) formed in a standard CDM universe to study the spatial distribution and orbital ...
Adami C., B. Moore, Biviano A., Bower R. G., Cole S., F. Governato, Fontana A., G. Lake, J. Stadel, Kauffmann G., Lacey C., Madau P., Mellier Y., S. Ghigna, T. Quinn, Tormen G.   +15 more
core   +2 more sources

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

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

The TET3/GATA6 Axis Drives Lipid Metabolism and Therapeutic Vulnerabilities in Pancreatic Ductal Adenocarcinoma

Advanced Science, EarlyView.
The DNA demethylase TET3 drives lipid metabolic reprogramming in pancreatic ductal adenocarcinoma via a non‐catalytic mechanism. TET3 recruits histone deacetylases to repress GATA6, sustaining lipogenic enzyme expression and ferroptosis resistance.
Shuai Liu, Shaobo Kang, Na Lin, Wenqi Zhang, Shiwen Wang, Yuqing Ren, Xiaofan Ding, Jianxiu Yu, Ruiyu Xie   +8 more
wiley   +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

Inter-cluster Filaments of Galaxies Programme: Abundance and Distribution of Filaments in the 2dFGRS Catalogue [PDF]

, 2004
Filaments of galaxies are known to stretch between galaxy clusters at all redshifts in a complex manner. In this Letter, we present an analysis of the frequency and distribution of inter-cluster galaxy filaments selected from the 2dF Galaxy Redshift ...
Drinkwater, K. A. Pimbblet, M. C. Hawkrigg, M. J. Drinkwater   +3 more
core   +2 more sources

SHOCK HEATING OF THE MERGING GALAXY CLUSTER A521 [PDF]

, 2013
A521 is an interacting galaxy cluster located at z = 0.247, hosting a low-frequency radio halo connected to an eastern radio relic. Previous Chandra observations hinted at the presence of an X-ray brightness edge at the position of the relic, which may ...
H. Bourdin, P. Mazzotta, M. Markevitch, M. Markevitch, S. Giacintucci, G. Brunetti   +5 more
semanticscholar   +1 more source