Active gas features in three HSC-SSP CAMIRA clusters revealed by high angular resolution analysis of MUSTANG-2 SZE and XXL X-ray observations
Journal article, 2021
We present results from simultaneous modelling of high angular resolution GBT/MUSTANG-2 90 GHz Sunyaev-Zel'dovich effect (SZE) measurements and XMM-XXL X-ray images of three rich galaxy clusters selected from the HSC-SSP Survey. The combination of high angular resolution SZE and X-ray imaging enables a spatially resolved multicomponent analysis, which is crucial to understand complex distributions of cluster gas properties. The targeted clusters have similar optical richnesses and redshifts, but exhibit different dynamical states in their member galaxy distributions: a single-peaked cluster, a double-peaked cluster, and a cluster belonging to a supercluster. A large-scale residual pattern in both regular Compton-parameter y and X-ray surface brightness distributions is found in the single-peaked cluster, indicating a sloshing mode. The double-peaked cluster shows an X-ray remnant cool core between two SZE peaks associated with galaxy concentrations. The temperatures of the two peaks reach similar to 20-30 keV in contrast to the cool core component of similar to 2 keV, indicating a violent merger. The main SZE signal for the supercluster is elongated along a direction perpendicular to the major axis of the X-ray core, suggesting a minor merger before core passage. The S-X and y distributions are thus perturbed at some level, regardless of the optical properties. We find that the integrated Compton y parameter and the temperature for the major merger are boosted from those expected by the weak-lensing mass and those for the other two clusters show no significant deviations, which is consistent with predictions of numerical simulations.
gravitational lensing: weak
galaxies: clusters: intracluster medium
galaxies: clusters: general
radio continuum: galaxies
X-rays: galaxies: clusters
Author
Nobuhiro Okabe
Hiroshima University
Simon Dicker
University of Pennsylvania
Dominique Eckert
University of Geneva
Tony Mroczkowski
European Southern Observatory (ESO)
Fabio Gastaldello
Istituto nazionale di astrofisica (INAF)
Yen-Ting Lin
Academia Sinica
Mark Devlin
University of Pennsylvania
Charles E. Romero
University of Pennsylvania
Mark Birkinshaw
University of Bristol
Craig Sarazin
University of Virginia
Cathy Horellou
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Tetsu Kitayama
Toho University
Keiichi Umetsu
Academia Sinica
Mauro Sereno
National Institute for Nuclear Physics
Istituto nazionale di astrofisica (INAF)
Brian S. Mason
National Radio Astronomy Observatory
John A. ZuHone
Harvard-Smithsonian Center for Astrophysics
Ayaka Honda
Hiroshima University
Hiroki Akamatsu
Netherlands Institute for Space Research (SRON)
I-Non Chiu
Academia Sinica
Kotaro Kohno
University of Tokyo
Kai-Yang Lin
Academia Sinica
Elinor Medezinski
Princeton University
Satoshi Miyazaki
National Astronomical Observatory of Japan
Ikuyuki Mitsuishi
Nagoya University
Atsushi J. Nishizawa
Nagoya University
Masamune Oguri
University of Tokyo
Naomi Ota
Nara Women's University
Florian Pacaud
University of Bonn
Marguerite Pierre
University Paris-Saclay
Jonathan Sievers
McGill University
Vernesa Smolcic
University of Zagreb
Sara Stanchfield
University of Pennsylvania
Keigo Tanaka
Kanazawa University
Ryoichi Yamamoto
Hiroshima University
Chong Yang
Hiroshima University
Atsushi Yoshida
Nagoya University
Monthly Notices of the Royal Astronomical Society
0035-8711 (ISSN) 1365-2966 (eISSN)
Vol. 501 2 1701-1732Subject Categories
Astronomy, Astrophysics and Cosmology
Atom and Molecular Physics and Optics
Other Physics Topics
DOI
10.1093/mnras/staa2330