Results 41 to 50 of about 2,213,777 (304)

ILLUMINATING A DARK LENS: A TYPE Ia SUPERNOVA MAGNIFIED BY THE FRONTIER FIELDS GALAXY CLUSTER ABELL 2744 [PDF]

open access: yes, 2015
SN HFF14Tom is a Type Ia SN discovered at z = 1.3457 ± 0.0001 ?> behind the galaxy cluster Abell 2744 (z = 0.308). In a cosmology-independent analysis, we find that HFF14Tom is 0.77 ± 0.15 mag brighter than unlensed Type Ia SNe at similar redshift ...
S. Rodney   +29 more
semanticscholar   +1 more source

Do cluster properties affect the quenching rate? [PDF]

open access: yes, 2014
The quenching rate is known to depend on galaxy stellar mass and environment, however, possible dependences on the hosting halo properties, such as mass, richness, and dynamical status, are still debated.
Andreon, S., Raichoor, A.
core   +2 more sources

Dark matter phenomenology of high-speed galaxy cluster collisions

open access: yesEuropean 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

The Hubble constant from galaxy cluster scaling-relation and SNe Ia observations: a consistency test

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this paper, we propose a self-consistent test for a Hubble constant estimate using galaxy cluster and type Ia supernovae (SNe Ia) observations. The approach consists, in a first step, of obtaining the observational value of the galaxy cluster scaling ...
Kamal Bora, R. F. L. Holanda
doaj   +1 more source

THE MASSIVE AND DISTANT CLUSTERS OF WISE SURVEY: MOO J1142+1527, A 1015 M⊙ GALAXY CLUSTER AT z = 1.19 [PDF]

open access: yes, 2015
We present confirmation of the cluster MOO J1142+1527, a massive galaxy cluster discovered as part of the Massive and Distant Clusters of WISE Survey. The cluster is confirmed to lie at z = 1.19, and using the Combined Array for Research in Millimeter ...
Anthony H. Gonzalez   +21 more
semanticscholar   +1 more source

Quenched Galaxies in Clusters of Galaxies and Their Outskirts [PDF]

open access: yesAstrophysical Bulletin, 2020
Based on the SDSS data, the properties of galaxies with quenched star formation (QGs) within the "splashback"-radius of galaxy clusters $R_{\rm sp}$ and beyond it have been studied.
F. G. Kopylova, Alexander I. Kopylov
openaire   +3 more sources

Supernovae in Galaxy Clusters [PDF]

open access: yesInternational Astronomical Union Colloquium, 2005
SummaryWe present the results of several surveys for supernovae (SNe) in galaxy clusters. SNe discovered in deep, archival HST images were used to measure the cluster SN Ia rate to z = 1. A search for SNe in nearby (0.06 ≤ z ≤ 0.2) Abell galaxy clusters yielded 15 SNe, 12 of which were spectroscopically confirmed.
Alexei V. Filippenko   +5 more
openaire   +4 more sources

Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images [PDF]

open access: yes, 2014
We present a high-precision mass model of the galaxy cluster MACSJ0416.1-2403, based on a strong-gravitational-lensing analysis of the recently acquired Hubble Space Telescope Frontier Fields (HFF) imaging data.
M. Jauzac   +13 more
semanticscholar   +1 more source

The Origin of the Brightest Cluster Galaxies [PDF]

open access: yes, 1997
Most clusters and groups of galaxies contain a giant elliptical galaxy in their centres which far outshines and outweighs normal ellipticals. The origin of these brightest cluster galaxies is intimately related to the collapse and formation of the ...
Binggeli B.   +14 more
core   +3 more sources

THE ELLIPTICITIES OF GALAXIES IN GALAXY CLUSTERS OF DIFFERENT MORPHOLOGICAL TYPE

open access: yesOdessa Astronomical Publications, 2014
The distribution of galaxy ellipticities was analyzed for 207 rich PF galaxy clusters found in the Munster Red Sky Survey Galaxy Catalogue. Clusters with BM types from a comparison with the ACO catalogue were also classified on the new scheme.
E. A. Panko, P. Flin
doaj   +1 more source

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