A Formation Mechanism for “Wrong Way” Radio Relics
The Astrophysical Journal Letters, 2023 Radio relics are typically found to be arc-like regions of synchrotron emission in the outskirts of merging galaxy clusters, bowing out from the cluster center.
Ludwig M. Böss +2 more
doaj +1 more source
Mass Estimation of Planck Galaxy Clusters using Deep Learning [PDF]
EPJ Web of Conferences, 2022 Galaxy cluster masses can be inferred indirectly using measurements from X-ray band, Sunyaev-Zeldovich (SZ) effect signal or optical observations. Unfortunately, all of them are affected by some bias.
de Andres Daniel +8 more
doaj +1 more source
EVIDENCE FOR PARTICLE RE-ACCELERATION IN THE RADIO RELIC IN THE GALAXY CLUSTER PLCKG287.0+32.9 [PDF]
, 2014 Radio relics are diffuse radio sources observed in galaxy clusters, probably produced by shock acceleration during cluster–cluster mergers. Their large size, of the order of 1 Mpc, indicates that the emitting electrons need to be (re)accelerated locally.
A. Bonafede +8 more
semanticscholar +1 more source
Probing the evolution of galaxy clusters using SZ effect and non-thermal emission: First results from A1413 [PDF]
EPJ Web of ConferencesMass is the most fundamental property of galaxy clusters. However, measuring it is still a challenge. Calibrating mass from intracluster medium observables such as the Sunyaev-Zel’dovich (SZ) effect is subject to uncertainty and biases because of the ...
Pachchigar M., Perrott Y., Parashar T.
doaj +1 more source
The JWST PEARLS View of the El Gordo Galaxy Cluster and of the Structure It Magnifies
The Astrophysical Journal, 2023 The massive galaxy cluster El Gordo ( z = 0.87) imprints multitudes of gravitationally lensed arcs onto James Webb Space Telescope Near-Infrared Camera (NIRCam) images.
Brenda L. Frye +43 more
doaj +1 more source
The reversal of the SF–density relation in a massive, X-ray-selected galaxy cluster at z = 1.58: results from Herschel [PDF]
, 2014 Dusty, star-forming galaxies have a critical role in the formation and evolution of massive galaxies in the Universe. Using deep far-infrared imaging in the range 100-500um obtained with the Herschel telescope, we investigate the dust-obscured star ...
Joana S. Santos . Bruno Altieri +9 more
semanticscholar +1 more source
RASS-SDSS Galaxy Cluster Survey. VII. On the Cluster Mass to Light ratio and the Halo Occupation Distribution [PDF]
, 2006 We explore the mass-to-light ratio in galaxy clusters and its relation to the cluster mass. We study the relations among the optical luminosity ($L_{op}$), the cluster mass ($M_{200}$) and the number of cluster galaxies within $r_{200}$ ($N_{gal}$) in a ...
Biviano, A. +3 more
core +2 more sources
The growth of the galaxy cluster Abell 85: mergers, shocks, stripping and seeding of clumping [PDF]
, 2014 We present the results of deep Chandra, XMM-Newton and Suzaku observations of the nearby galaxy cluster Abell 85, which is currently undergoing at least two mergers, and in addition shows evidence for gas sloshing which extends out to r ~ 600 kpc. One of
Y. Ichinohe +8 more
semanticscholar +1 more source
Evolution of galaxy clustering [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 Four pages, 1 figure.
openaire +4 more sources
Quantitative Estimates of Environmental Effects on the Star Formation Rate of Disk Galaxies in Clusters of Galaxies [PDF]
, 1998 A simple model is constructed to evaluate the change of star formation rate of a disk galaxy due to environmental effects in clusters of galaxies. Three effects, (1) tidal force from the potential well of the cluster, (2) increase of external pressure ...
Evrard A. E. +6 more
core +2 more sources