Results 51 to 60 of about 2,756,668 (275)
THE EFFECT OF ENVIRONMENT ON THE FORMATION OF Hα FILAMENTS AND COOL CORES IN GALAXY GROUPS AND CLUSTERS [PDF]
, 2011 We present the results of a combined X-ray and Hα study of 10 galaxy groups and 17 galaxy clusters using the Chandra X-ray Observatory and the Maryland Magellan Tunable Filter.
M. McDonald, S. Veilleux, R. Mushotzky
semanticscholar +1 more source
Velocity-dependent self-interacting dark matter from groups and clusters of galaxies [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We probe the self-interactions of dark matter with relaxed galaxy groups and clusters using observational data from strong and weak lensing and stellar kinematics.
L. Sagunski +4 more
semanticscholar +1 more source
Merging groups and clusters of galaxies from the SDSS data. The catalogue of groups and potentially merging systems [PDF]
A&A 602, A100 (2017), 2017 Galaxy groups and clusters are the main tools used to test cosmological models and to study the environmental effect of galaxy formation. This work provides a catalogue of galaxy groups and clusters, as well as potentially merging systems based on the SDSS main galaxy survey.
arxiv +1 more source
Constraining AGN feedback model with SZ profile [PDF]
EPJ Web of Conferences, 2022 Relativistic jets from AGN have a wide range of impacts on galaxy groups and clusters and are key for understanding their formation and physical properties. However, this non-gravitational process is not well understood.
Tanimura Hideki +9 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 +2 more
doaj +1 more source
Triggering of merger‐induced starbursts by the tidal field of galaxy groups and clusters [PDF]
, 2007 Star formation in galaxies is for a part driven by galaxy mergers. At low redshift, star formation activity is low in high-density environments like groups and clusters, and the star formation activity of galaxies increases with their isolation.
M. Martig, F. Bournaud
semanticscholar +1 more source
A Census of Baryons in Galaxy Clusters and Groups [PDF]
, 2007 We determine the contribution of stars in galaxies, intracluster stars, and the intracluster medium to the total baryon budget in nearby galaxy clusters and groups. We find that the baryon mass fraction (f_b) within r500 is constant for systems with M500
Gonzalez, Anthony H. +2 more
core +1 more source
Entropy Evolution in Galaxy Groups and Clusters: a Comparison of External and Internal Heating [PDF]
, 2001 The entropy in hot, X-ray-emitting gas in galaxy groups and clusters is a measure of past heating events, except for the entropy lost by radiation from denser regions.
F. Brighenti, W. Mathews
semanticscholar +1 more source
X-RAY EMISSION AND ORIENTATION OF SELECTED PF GALAXY CLUSTERS
Odessa Astronomical Publications, 2016 X-ray counterparts for 35 galaxy clusters contained in the PF catalogue of galaxy clusters and groups were found in XMM-Newton archive. 22 ones (all from ACO catalogue) have extended elliptic X-ray haloes appropriate for determination of orientation ...
A. V. Tugay, S. S. Dylda, E. A. Panko
doaj +1 more source
The Astrophysical Journal, 2023 In this paper, by analyzing mock images from the IllustrisTNG100-1 simulation, we examine the properties of diffuse light and compare them to those of central and satellite galaxies.
Lin Tang +4 more
doaj +1 more source