THE UBIQUITY OF COEVAL STARBURSTS IN MASSIVE GALAXY CLUSTER PROGENITORS [PDF]
, 2016 The universe’s largest galaxy clusters likely built the majority of their massive >1011 M galaxies in simultaneous, short-lived bursts of activity well before virialization.
C. Casey
semanticscholar +1 more source
The Galaxy Cluster Merger Catalog: An Online Repository of Mock Observations from Simulated Galaxy Cluster Mergers [PDF]
, 2016 We present the “Galaxy Cluster Merger Catalog.” This catalog provides an extensive suite of mock observations and related data for N-body and hydrodynamical simulations of galaxy cluster mergers and clusters from cosmological simulations.
J. Zuhone +4 more
semanticscholar +1 more source
Unidentified line in x-ray spectra of the Andromeda galaxy and Perseus galaxy cluster. [PDF]
Physical Review Letters, 2014 We report a weak line at 3.52±0.02 keV in x-ray spectra of the Andromeda galaxy and the Perseus galaxy cluster observed by the metal-oxide-silicon (MOS) and p-n (PN) CCD cameras of the XMM-Newton telescope.
A. Boyarsky +3 more
semanticscholar +1 more source
Witnessing the formation of a brightest cluster galaxy at z>2 [PDF]
, 2006 We present deep observations taken with the HST Advanced Camera for Surveys of the central massive galaxy in a forming cluster at z=2.2. The galaxy hosting the powerful radio source MRC 1138-262 is associated with one of the most extensive merger systems
Bahcall +38 more
core +2 more sources
Next Generation Cosmology: Constraints from the Euclid Galaxy Cluster Survey [PDF]
, 2015 We study the characteristics of the galaxy cluster samples expected from the European Space Agency's Euclid satellite and forecast constraints on parameters describing a variety of cosmological models.
B. Sartoris +15 more
semanticscholar +1 more source
Statistics of Galaxy Clustering [PDF]
, 2006 In this introductory talk we will establish connections between the statistical analysis of galaxy clustering in cosmology and recent work in mainstream spatial statistics. The lecture will review the methods of spatial statistics used by both sets of scholars, having in mind the cross-fertilizing purpose of the meeting series.
Martinez, Vicent J., Saar, Enn
openaire +2 more sources
Galaxy subgroups in galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 Galaxies which fall into clusters as part of the same infall halo can retain correlations due to their shared origin. N-body simulations are used to study properties of such galaxy subgroups within clusters, including their richnesses and prevalence.
openaire +3 more sources
Dark matter phenomenology of high-speed galaxy cluster collisions
European Physical Journal C: Particles and Fields, 2017 We perform a general computational analysis of possible post-collision mass distributions in high-speed galaxy cluster collisions in the presence of self-interacting dark matter.
Yuriy Mishchenko, Chueng-Ryong Ji
doaj +1 more source
Low X-Ray Luminosity Galaxy Clusters: Main goals, sample selection, photometric and spectroscopic observations [PDF]
, 2016 We present the study of nineteen low X-ray luminosity galaxy clusters (L$_X \sim$ 0.5--45 $\times$ $10^{43}$ erg s$^{-1}$), selected from the ROSAT Position Sensitive Proportional Counters (PSPC) Pointed Observations (Vikhlinin et al.
Alonso, M. V. +12 more
core +3 more sources
SEARCH FOR EXTENDED GAMMA-RAY EMISSION FROM THE VIRGO GALAXY CLUSTER WITH FERMI-LAT [PDF]
, 2015 Galaxy clusters are one of the prime sites to search for dark matter (DM) annihilation signals. Depending on the substructure of the DM halo of a galaxy cluster and the cross sections for DM annihilation channels, these signals might be detectable by the
M. Ackermann +152 more
semanticscholar +1 more source