SIMBAD references

2019ApJS..240...39G - Astrophys. J., Suppl. Ser., 240, 39-39 (2019/February-0)

Merging cluster collaboration: optical and spectroscopic survey of a radio-selected sample of 29 merging galaxy clusters.

GOLOVICH N., DAWSON W.A., WITTMAN D.M., JEE M.J., BENSON B., LEMAUX B.C., VAN WEEREN R.J., ANDRADE-SANTOS F., SOBRAL D., DE GASPERIN F., BRUGGEN M., BRADAC M., FINNER K. and PETER A.

Abstract (from CDS):

Multi-band photometric and multi-object spectroscopic surveys of merging galaxy clusters allow for the characterization of the distributions of constituent DM and galaxy populations, constraints on the dynamics of the merging subclusters, and an understanding of galaxy evolution of member galaxies. We present deep photometric observations from Subaru/SuprimeCam and a catalog of 4431 spectroscopic galaxies from Keck/DEIMOS observations of 29 merging galaxy clusters ranging in redshift from z = 0.07 to 0.55. The ensemble is compiled based on the presence of radio relics, which highlight cluster-scale collisionless shocks in the intracluster medium. Together with the spectroscopic and photometric information, the velocities, timescales, and geometries of the respective merging events may be tightly constrained. In this preliminary analysis, the velocity distributions of 28 of the 29 clusters are shown to be well fit by single Gaussians. This indicates that radio-relic mergers largely occur transverse to the line of sight and/or near-apocenter. In this paper, we present our optical and spectroscopic surveys, preliminary results, and a discussion of the value of radio-relic mergers for developing accurate dynamical models of each system.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: intracluster medium - galaxies: distances and redshifts - large-scale structure of universe

Status in Simbad:  being processed

Simbad objects: 33

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2019ApJS..240...39G and select 'bookmark this link' or equivalent in the popup menu


2019.12.16-05:53:55

© Université de Strasbourg/CNRS

    • Contact