Multiwavelength study of X-ray luminous clusters in the Hyper Suprime-Cam Subaru Strategic Program S16A field
Year: 2017
Type: article
Abstract: We present a joint X-ray, optical, and weak-lensing analysis for X-ray luminous galaxy clusters selected from the MCXC (Meta-Catalog of X-Ray Detected Clusters of Galaxies) cluster catalog in the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) survey field with S16A data. As a pilot study for a series of papers, we measure hydrostatic equilibrium (HE) masses using XMM-Newton data for four clusters in the current coverage area out of a sample of 22 MCXC clusters. We additionally analyze a non-MCXC cluster associated with one MCXC cluster. We show that HE masses for the MCXC clusters are correlated with cluster richness from the CAMIRA catalog, while that for the non-MCXC cluster deviates from the scaling relation. The mass normalization of the relationship between cluster richness and HE mass is compatible with one inferred by matching CAMIRA cluster abundance with a theoretical halo mass function. The mean gas mass fraction based on HE masses for the MCXC clusters is 〈fgas〉 = 0.125 ± 0.012 at spherical overdensity Δ = 500, which is ∼80%–90% of the cosmic mean baryon fraction, Ωb/Ωm, measured by cosmic microwave background experiments. We find that the mean baryon fraction estimated from X-ray and HSC-SSP optical data is comparable to Ωb/Ωm. A weak-lensing shear catalog of background galaxies, combined with photometric redshifts, is currently available only for three clusters in our sample. Hydrostatic equilibrium masses roughly agree with weak-lensing masses, albeit with large uncertainty. This study demonstrates that further multiwavelength study for a large sample of clusters using X-ray, HSC-SSP optical, and weak-lensing data will enable us to understand cluster physics and utilize cluster-based cosmology.
DOI: 10.1093/pasj/psx132
Authors: Keita Miyaoka, Nobuhiro Okabe, Takao Kitaguchi, Masamune Oguri, Yasushi Fukazawa, Rachel Mandelbaum, Elinor Medezinski, Yasunori Babazaki, Atsushi J Nishizawa, Takashi Hamana, Yen-Ting Lin, Hiroki Akamatsu, I-Non Chiu, Yutaka Fujita, Yuto Ichinohe, Yutaka Komiyama, Toru Sasaki, Motokazu Takizawa, Shutaro Ueda, Keiichi Umetsu, Jean Coupon, Chiaki Hikage, Akio Hoshino, Alexie Leauthaud, Kyoko Matsushita, Ikuyuki Mitsuishi, Hironao Miyatake, Satoshi Miyazaki, Surhud More, Kazuhiro Nakazawa, Naomi Ota, Kousuke Sato, David Spergel, Takayuki Tamura, Masayuki Tanaka, Manobu M Tanaka, Yousuke Utsumi
Institutions: Hiroshima University, Hiroshima Astrophysical Science Center, Kavli Institute for the Physics and Mathematics of the Universe, Research Center for the Early Universe, The University of Tokyo, Carnegie Mellon University, Princeton University, Nagoya University, Nagoya University Institute for Advanced Research, National Astronomical Observatory of Japan, Institute of Astronomy and Astrophysics, Academia Sinica, Academia Sinica, Space Research Organisation Netherlands, The University of Osaka, Tokyo Metropolitan University, The Graduate University for Advanced Studies, SOKENDAI, Tokyo University of Science, Yamagata University, Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, University of Geneva, Rikkyo University, University of California, Santa Cruz, Jet Propulsion Laboratory, Nara Women's University, Saitama University, High Energy Accelerator Research Organization
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, Smithsonian Institution, National Aeronautics and Space Administration, Princeton University, California Institute of Technology, Johns Hopkins University, Space Telescope Science Institute, Queen's University Belfast, Durham University, Ministry of Education, Culture, Sports, Science and Technology, Academia Sinica, Cabinet Office, Government of Japan, Queen's University, National Central University, National Astronomical Observatory of Japan, High Energy Accelerator Research Organization, Eötvös Loránd Tudományegyetem, Max-Planck-Institut für Astronomie, Toray Science Foundation, Jet Propulsion Laboratory, Smithsonian Astrophysical Observatory, Science Mission Directorate, Japan Society for the Promotion of Science, Japan Science and Technology Agency, Planetary Science Division, Los Alamos National Laboratory
Awards: Weak-gravitational lensing analysis of subhalos in galaxy clusters for revealing its mass function and statistical properties, Multi-wavelength study of evolution of galaxy clusters, thermodynamics of intracluster medium, and origin of diffuse radio emission, 高精度Ｘ線分光とガス形態から探る銀河団プラズマの統一描像, Accurate measurement of density fluctuations and their evolution, G3406267610, G3442441494, G3463418868, Dynamics of hot X-ray emitting gas and feedback from galaxies with ASTRO-H, Exploring the origin of cosmic acceleration through cluster mass function and weak lensing, G3894316463, G4146734321, G4474636675, Synergy of galaxy imaging and spectroscopic surveys and CMB to probe dark components in the Universe, Study of nonthermal phenomena of galaxy clusters through next generation multiwave obserbations and theoretical simulations, G5119638040, G5125618586, Co-evolution of galaxy clusters and black holes., Development and application of imaging analysis technique for weak lensing study, G618131832, G6684161710, A NEO SEARCH PROGRAM USING THE PAN-STARRS PS1 TELESCOPETHE GOAL OF THE PROPOSED RESEARCH IS TO USE T, G7187964967, G7590653974, Pan-STARRS1: Operations; Public Data Release; Education and Outreach, X-ray spectroscopic study of velocity strucutres in the intracluster medium, G833430883
OpenAlex ID: W2620124126