CLASH-VLT: The mass, velocity-anisotropy, and pseudo-phase-space density profiles of the z=0.44 galaxy cluster MACS J1206.2-0847

被引：111

作者：

Biviano, A. ^{[1
]}

Rosati, P. ^{[2
]}

Balestra, I. ^{[1
,3
]}

Mercurio, A. ^{[3
]}

Girardi, M. ^{[1
,4
]}

Nonino, M. ^{[1
]}

Grillo, C. ^{[5
]}

Scodeggio, M. ^{[6
]}

Lemze, D. ^{[7
]}

Kelson, D. ^{[8
]}

Umetsu, K. ^{[9
]}

Postman, M. ^{[10
]}

Zitrin, A. ^{[11
]}

Czoske, O. ^{[12
]}

Ettori, S. ^{[13
,14
]}

Fritz, A. ^{[6
]}

Lombardi, M. ^{[15
]}

Maier, C. ^{[12
]}

Medezinski, E. ^{[16
]}

Mei, S. ^{[17
,18
]}

Presotto, V. ^{[4
]}

Strazzullo, V. ^{[19
]}

Tozzi, P. ^{[20
]}

Ziegler, B. ^{[12
]}

Annunziatella, M. ^{[1
,4
]}

Bartelmann, M. ^{[11
]}

Benitez, N. ^{[21
]}

Bradley, L. ^{[10
]}

Brescia, M. ^{[3
]}

Broadhurst, T. ^{[22
]}

Coe, D. ^{[10
]}

Demarco, R. ^{[23
]}

Donahue, M. ^{[24
]}

Ford, H. ^{[7
]}

Gobat, R. ^{[25
]}

Graves, G. ^{[26
,27
]}

Koekemoer, A. ^{[10
]}

Kuchner, U. ^{[12
]}

Melchior, P. ^{[28
]}

Meneghetti, M. ^{[13
,14
]}

Merten, J. ^{[29
]}

Moustakas, L. ^{[29
]}

Munari, E. ^{[1
,4
]}

Regos, E. ^{[30
]}

Sartoris, B. ^{[4
]}

Seitz, S. ^{[31
,32
]}

Zheng, W. ^{[7
]}

机构：

[1] INAF Osservatorio Astron Trieste, I-34131 Trieste, Italy

[2] ESO, D-85748 Garching, Germany

[3] INAF Osservatorio Astron Capodimonte, I-80131 Naples, Italy

[4] Univ Trieste, Dipartimento Fis, I-34143 Trieste, Italy

[5] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen, Denmark

[6] INAF IASF Milano, I-20133 Milan, Italy

[7] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[8] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA

[9] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan

[10] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[11] Heidelberg Univ, Inst Theoret Astrophys, Zentrum Astron, D-69120 Heidelberg, Germany

[12] Univ Vienna, Dept Astrophys, A-1180 Vienna, Austria

[13] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy

[14] INFN, Sez Bologna, I-40127 Bologna, Italy

[15] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[16] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[17] Observ Paris, GEPI, F-75014 Paris, France

[18] Univ Paris 07, F-75205 Paris, France

[19] CEA Saclay, F-91191 Gif Sur Yvette, France

[20] INAF Osservatorio Astrofis Arcetri, I-50125 Florence, Italy

[21] Inst Astrofis Andalucia CSIC, Granada 18008, Spain

[22] Univ Basque Country, Dept Theoret Phys, Bilbao 48080, Spain

[23] Univ Concepcion, Dept Astron, Concepcion, Chile

[24] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[25] Univ Paris Diderot, Lab AIM Paris Saclay, CEA DSM CNRS, Irfu,Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France

[26] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[27] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[28] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[29] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[30] European Lab Particle Phys CERN, CH-1211 Geneva 23, Switzerland

[31] Univ Observ Munich, D-81679 Munich, Germany

[32] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany

来源：

ASTRONOMY & ASTROPHYSICS | 2013年 / 558卷

关键词：

galaxies: clusters: individual: MACS J1206-0847; galaxies: kinematics and dynamics; galaxies: evolution; dark matter; DARK-MATTER HALOS; STRONG-LENSING ANALYSIS; REGION NEARBY SURVEY; DIGITAL SKY SURVEY; X-RAY; INFALL REGION; RICH CLUSTERS; COLLISIONLESS EQUILIBRIA; SIMULATED CLUSTERS; SPHERICAL GALAXIES;

D O I：

10.1051/0004-6361/201321955

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Aims: We constrain the mass, velocity-anisotropy, and pseudo-phase-space density profiles of the z = 0.44 CLASH cluster MACS J1206.2-0847, using the projected phase-space distribution of cluster galaxies in combination with gravitational lensing. Methods: We use an unprecedented data-set of similar or equal to 600 redshifts for cluster members, obtained as part of a VLT/VIMOS large program, to constrain the cluster mass profile over the radial range similar to 0-5 Mpc (0-2.5 virial radii) using the MAMPOSSt and Caustic methods. We then add external constraints from our previous gravitational lensing analysis. We invert the Jeans equation to obtain the velocity-anisotropy profiles of cluster members. With the mass-density and velocity-anisotropy profiles we then obtain the first determination of a cluster pseudo-phase-space density profile. Results: The kinematics and lensing determinations of the cluster mass profile are in excellent agreement. This is very well fitted by a NFW model with mass M-200 = (1.4 +/- 0.2) x 10(15) M-circle dot and concentration c(200) = 6 +/- 1, only slightly higher than theoretical expectations. Other mass profile models also provide acceptable fits to our data, of (slightly) lower (Burkert, Hernquist, and Softened Isothermal Sphere) or comparable (Einasto) quality than NFW. The velocity-anisotropy profiles of the passive and star- forming cluster members are similar, close to isotropic near the center and increasingly radial outside. Passive cluster members follow extremely well the theoretical expectations for the pseudo-phase-space density profile and the relation between the slope of the mass-density profile and the velocity anisotropy. Star-forming cluster members show marginal deviations from theoretical expectations. Conclusions: This is the most accurate determination of a cluster mass profile out to a radius of 5 Mpc, and the only determination of the velocity-anisotropy and pseudo-phase-space density profiles of both passive and star-forming galaxies for an individual cluster. These profiles provide constraints on the dynamical history of the cluster and its galaxies. Prospects for extending this analysis to a larger cluster sample are discussed.

引用

页数：22

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