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相关论文: CLUMP-3D. Three dimensional lensing and multi-prob…

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The $\Lambda$CDM model of structure formation makes strong predictions on concentration and shape of DM (dark matter) halos, which are determined by mass accretion processes. Comparison between predicted shapes and observations provides a…

宇宙学与河外天体物理 · 物理学 2018-06-13 Mauro Sereno , Keiichi Umetsu , Stefano Ettori , Jack Sayers , I-Non Chiu , Massimo Meneghetti , Jesús Vega-Ferrero , Adi Zitrin

We perform a three-dimensional triaxial analysis of 16 X-ray regular and 4 high-magnification galaxy clusters selected from the CLASH survey by combining two-dimensional weak-lensing and central strong-lensing constraints. In a Bayesian…

宇宙学与河外天体物理 · 物理学 2018-07-04 I-Non Chiu , Keiichi Umetsu , Mauro Sereno , Stefano Ettori , Massimo Meneghetti , Julian Merten , Jack Sayers , Adi Zitrin

We present results of a combined X-ray/optical analysis of the dynamics of the massive cluster MACS J0358.8-2955 (z=0.428) based on observations with the Chandra X-ray Observatory, the Hubble Space Telescope, and the Keck-I telescope on…

宇宙学与河外天体物理 · 物理学 2015-06-11 Li-Yen Hsu , Harald Ebeling , Johan Richard

[Abridged] We present the first determination of the intrinsic three-dimensional shapes and the physical parameters of both dark matter (DM) and intra-cluster medium (ICM) in a triaxial galaxy cluster. While most previous studies rely on…

宇宙学与河外天体物理 · 物理学 2014-11-20 A. Morandi , K. Pedersen , M. Limousin

We present a strong-lensing analysis of the galaxy cluster MACS J1206.2-0847 ($z$=0.44) using UV, Optical, and IR, HST/ACS/WFC3 data taken as part of the CLASH multi-cycle treasury program, with VLT/VIMOS spectroscopy for some of the…

We perform a 3D multi-probe analysis of the rich galaxy cluster A1689 by combining improved weak-lensing data from new BVRi'z' Subaru/Suprime-Cam observations with strong-lensing, X-ray, and Sunyaev-Zel'dovich effect (SZE) data sets. We…

Measuring the intrinsic shape and orientation of dark matter (DM) and intracluster (IC) gas in galaxy clusters is crucial to constraining their formation and evolution, and for enhancing the use of clusters as more precise cosmological…

Knowledge of mass and concentration of galaxy clusters is crucial to understand their formation and evolution. Unbiased estimates require the understanding of the shape and orientation of the halo as well as its equilibrium status. We…

宇宙学与河外天体物理 · 物理学 2015-06-11 Mauro Sereno , Stefano Ettori , Keiichi Umetsu , Alessandro Baldi

We discuss the X-ray and optical properties of the massive galaxy cluster MACSJ1206.2-0847 (z=0.4385), discovered in the Massive Cluster Survey (MACS). Our Chandra observation of the system yields a total X-ray luminosity of 2.4 x 10^45…

高能天体物理现象 · 物理学 2009-11-13 H. Ebeling , C. J. Ma , J. -P. Kneib , E. Jullo , N. J. D. Courtney , E. Barrett , A. C. Edge , J. -F. Le Borgne

We present a new strong lensing analysis of the galaxy cluster MACS J1206.2-0847 (MACS 1206), at z=0.44, using deep spectroscopy from CLASH-VLT and VLT/MUSE archival data in combination with imaging from the Cluster Lensing and Supernova…

In this work we analyze the mass distribution of MACSJ1206.2-0847, especially focusing on the halo properties of its cluster members. The cluster appears relaxed in its X-ray emission, but has significant amounts of intracluster light which…

We present the strong lensing analysis of two galaxy clusters: MACS J0242.5-2132 (MACS J0242, $z=0.313$) and MACS J0949.8+1708 (MACS J0949, $z=0.383$). Their total matter distributions are constrained thanks to the powerful combination of…

We measure the dark matter density profiles of six galaxy clusters: A383, MS 2137-23, MACS J0326.8-0043, MACS J1427.6-2521, MACS J0417.5-1154, and MACS J0949.8+1708. Each cluster contains at least one radial arc, a unique physical feature…

宇宙学与河外天体物理 · 物理学 2025-08-28 Catherine Cerny , Mathilde Jauzac , David Lagattuta , Anna Niemiec , Guillaume Mahler , Alastair Edge , Richard Massey , Joseph Allingham

We present a novel approach for a combined analysis of X-ray and gravitational lensing data and apply this technique to the merging galaxy cluster MACS J0416.1$-$2403. The method exploits the information on the intracluster gas distribution…

星系天体物理 · 物理学 2017-08-04 M. Bonamigo , C. Grillo , S. Ettori , G. B. Caminha , P. Rosati , A. Mercurio , M. Annunziatella , I. Balestra , M. Lombardi

We present a self consistent method to perfom a joint analysis of Sunyaev-Zel'dovich and weak gravitational lensing observation of galaxy clusters. The spatial distribution of the cluster main constituents is described by a perturbative…

天体物理学 · 物理学 2009-11-06 O. Doré , F. R. Bouchet , Y. Mellier , R. Teyssier

MACS J0600.1-2008 (MACS0600) is an X-ray luminous, massive galaxy cluster at $z_{\mathrm{d}}=0.43$, studied previously by the REionization LensIng Cluster Survey (RELICS) and ALMA Lensing Cluster Survey (ALCS) projects which revealed a…

We present results of a gravitational-lensing and optical study of MACS ,J1423.8+2404 (z=0.545, MACS, J1423). Our analysis uses high-resolution images taken with the Hubble Space Telescope in the F555W and F814W passbands, ground based…

宇宙学与河外天体物理 · 物理学 2015-05-14 M. Limousin , H. Ebeling , C. -J. Ma , A. M. Swinbank , G. P. Smith , J. Richard , A. C. Edge , M. Jauzac , J. -P. Kneib , P. Marshall , T. Schrabback

Whilst X-rays and Sunyaev-Zel'dovich observations allow to study the properties of the intra-cluster medium (ICM) of galaxy clusters, their gravitational potential may be constrained using strong gravitational lensing. Although being…

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