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THREE-DIMENSIONAL MULTI-PROBE ANALYSIS OF THE GALAXY CLUSTER A1689

https://hiroshima.repo.nii.ac.jp/records/2008899
https://hiroshima.repo.nii.ac.jp/records/2008899
6a94dc7d-fcca-4754-839b-2dac154d3d30
名前 / ファイル ライセンス アクション
ApJ_806_207.pdf ApJ_806_207.pdf (5.5 MB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル THREE-DIMENSIONAL MULTI-PROBE ANALYSIS OF THE GALAXY CLUSTER A1689
言語 en
作成者 Umetsu, Keiichi

× Umetsu, Keiichi

en Umetsu, Keiichi

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Sereno, Mauro

× Sereno, Mauro

en Sereno, Mauro

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Medezinski, Elinor

× Medezinski, Elinor

en Medezinski, Elinor

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Nonino, Mario

× Nonino, Mario

en Nonino, Mario

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Mroczkowski, Tony

× Mroczkowski, Tony

en Mroczkowski, Tony

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Diego, Jose M.

× Diego, Jose M.

en Diego, Jose M.

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Ettori, Stefano

× Ettori, Stefano

en Ettori, Stefano

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Okabe, Nobuhiro

× Okabe, Nobuhiro

en Okabe, Nobuhiro

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Broadhurst, Tom

× Broadhurst, Tom

en Broadhurst, Tom

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Lemze, Doron

× Lemze, Doron

en Lemze, Doron

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 © 2015. The American Astronomical Society. All rights reserved.
主題
主題Scheme Other
主題 cosmology: observations – dark matter – galaxies: clusters: individual (A1689) – gravitational lensing: strong – gravitational lensing: weak
主題
主題Scheme NDC
主題 440
内容記述
内容記述 We perform a three-dimensional multi-probe analysis of the rich galaxy cluster A1689, one of the most powerful known lenses on the sky, by combining improved weak-lensing data from new wide-field BVRCi'z' Subaru/ Suprime-Cam observations with strong-lensing, X-ray, and Sunyaev–Zel’dovich effect (SZE) data sets. We reconstruct the projected matter distribution from a joint weak-lensing analysis of two-dimensional shear and azimuthally integrated magnification constraints, the combination of which allows us to break the mass-sheet degeneracy. The resulting mass distribution reveals elongation with an axis ratio of ∼0.7 in projection, aligned well with the distributions of cluster galaxies and intracluster gas. When assuming a spherical halo, our full weaklensing analysis yields a projected halo concentration of c^2D_200c = 8.9 ± 1.1 (c^2D_vir ~ 11), consistent with and improved from earlier weak-lensing work. We find excellent consistency between independent weak and strong lensing in the region of overlap. In a parametric triaxial framework, we constrain the intrinsic structure and geometry of the matter and gas distributions, by combining weak/strong lensing and X-ray/SZE data with minimal geometric assumptions. We show that the data favor a triaxial geometry with minor–major axis ratio 0.39±0.15 and major axis closely aligned with the line of sight (22°±10°). We obtain a halo mass M_200c = (1.2 ± 0.2) × 10^15 Mʘ h^-1 and a halo concentration c_200c = 8.4 ± 1.3, which overlaps with the ≳1σ tail of the predicted distribution. The shape of the gas is rounder than the underlying matter but quite elongated with minor–major axis ratio 0.60 ± 0.14. The gas mass fraction within 0.9Mpc is 10 ^+3_-2 %, a typical value for high-mass clusters. The thermal gas pressure contributes to ∼60% of the equilibrium pressure, indicating a significant level of non-thermal pressure support. When compared to Planckʼs hydrostatic mass estimate, our lensing measurements yield a spherical mass ratio of M_Planck / M_GL = 0.70 ± 0.15 and 0.58 ± 0.10 with and without corrections for lensing projection effects, respectively.
言語 en
内容記述
内容記述タイプ Other
内容記述 The work is partially supported by the Ministry of Science and Technology of Taiwan under the grant MOST 103-2112-M-001-030-MY3. M. S. acknowledges financial contributions from contracts ASI/INAF I/023/ 12/0, by the PRIN MIUR 2010–2011 “The dark universe and the cosmic evolution of baryons: from current surveys to Euclid" and by the PRIN INAF 2012 “The universe in the box: multiscale simulations of cosmic structure." M. N. acknowledges financial support from PRIN INAF 2014. J. M. D. acknowledges support of the consolider project CSD2010-00064 and AYA2012-39475-C02-01 funded by the Ministerio de Economia y Competitividad. N. O. is supported by a Grant-in-Aid from the Ministry of Education, Culture, Sports, Science, and Technology of Japan (26800097). This work was partially supported by “World Premier International Research Center Initiative (WPI Initiative)" and the Funds for the Development of Human Resources in Science and Technology under MEXT, Japan. This research was performed while T. M. held a National Research Council Research Associateship Award at the Naval Research Laboratory (NRL). We thank John Carlstrom, Megan Gralla, Marshall Joy, Dan Marrone, and the entire SZA and OVRO/BIMA teams for providing the SZA and OVRO/BIMA data used in this study. Support for the SZA observations presented in this work was provided by NSF through award AST-0838187 and PHY-0114422 at the University of Chicago. The OVRO and BIMA observations presented here were supported by National Science Foundation grants AST 99-81546 and 02-28963.
出版者
出版者 IOP Publishing
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
関連情報
識別子タイプ DOI
関連識別子 10.1088/0004-637X/806/2/207
関連情報
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/0004-637X/806/2/207
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0004-637X
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 1538-4357
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA00553253
開始ページ
開始ページ 207
書誌情報 The Astrophysical Journal
The Astrophysical Journal

巻 806, 号 2, p. 207, 発行日 2015-06-20
旧ID 47047
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