Merging Cluster Collaboration: Optical and Spectroscopic Survey of a Radio-selected Sample of 29 Merging Galaxy Clusters

N. Golovich, W. A. Dawson, D. M. Wittman, M. J. Jee, B. Benson, B. C. Lemaux, R. J. Van Weeren, F. Andrade-Santos, D. Sobral, F. De Gasperin, M. Brüggen, M. Bradač, K. Finner, A. Peter

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number39
JournalAstrophysical Journal, Supplement Series
Volume240
Issue number2
DOIs
Publication statusPublished - 2019 Feb

Fingerprint

radio
galaxies
merger
timescale
geometry
line of sight
catalogs
velocity distribution
shock
distribution
analysis

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

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. ; Brüggen, M. ; Bradač, M. ; Finner, K. ; Peter, A. / Merging Cluster Collaboration : Optical and Spectroscopic Survey of a Radio-selected Sample of 29 Merging Galaxy Clusters. In: Astrophysical Journal, Supplement Series. 2019 ; Vol. 240, No. 2.
@article{e93009543f914b5785d192d709603f41,
title = "Merging Cluster Collaboration: Optical and Spectroscopic Survey of a Radio-selected Sample of 29 Merging Galaxy Clusters",
abstract = "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.",
author = "N. Golovich and Dawson, {W. A.} and Wittman, {D. M.} and Jee, {M. J.} and B. Benson and Lemaux, {B. C.} and {Van Weeren}, {R. J.} and F. Andrade-Santos and D. Sobral and {De Gasperin}, F. and M. Br{\"u}ggen and M. Bradač and K. Finner and A. Peter",
year = "2019",
month = "2",
doi = "10.3847/1538-4365/aaf88b",
language = "English",
volume = "240",
journal = "Astrophysical Journal, Supplement Series",
issn = "0067-0049",
publisher = "IOP Publishing Ltd.",
number = "2",

}

Golovich, N, Dawson, WA, Wittman, DM, Jee, MJ, Benson, B, Lemaux, BC, Van Weeren, RJ, Andrade-Santos, F, Sobral, D, De Gasperin, F, Brüggen, M, Bradač, M, Finner, K & Peter, A 2019, 'Merging Cluster Collaboration: Optical and Spectroscopic Survey of a Radio-selected Sample of 29 Merging Galaxy Clusters', Astrophysical Journal, Supplement Series, vol. 240, no. 2, 39. https://doi.org/10.3847/1538-4365/aaf88b

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.; Brüggen, M.; Bradač, M.; Finner, K.; Peter, A.

In: Astrophysical Journal, Supplement Series, Vol. 240, No. 2, 39, 02.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Merging Cluster Collaboration

T2 - Optical and Spectroscopic Survey of a Radio-selected Sample of 29 Merging Galaxy Clusters

AU - Golovich, N.

AU - Dawson, W. A.

AU - Wittman, D. M.

AU - Jee, M. J.

AU - Benson, B.

AU - Lemaux, B. C.

AU - Van Weeren, R. J.

AU - Andrade-Santos, F.

AU - Sobral, D.

AU - De Gasperin, F.

AU - Brüggen, M.

AU - Bradač, M.

AU - Finner, K.

AU - Peter, A.

PY - 2019/2

Y1 - 2019/2

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85062590984&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85062590984&partnerID=8YFLogxK

U2 - 10.3847/1538-4365/aaf88b

DO - 10.3847/1538-4365/aaf88b

M3 - Article

AN - SCOPUS:85062590984

VL - 240

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

SN - 0067-0049

IS - 2

M1 - 39

ER -