Bayesian cluster finder: clusters in the CFHTLS Archive Research Survey

Autor: Narciso Benítez, David Wittman, Begoña Ascaso

Publikováno v: Monthly Notices of the Royal Astronomical Society. 420:1167-1182

The detection of galaxy clusters in present and future surveys enables measuring mass-to-light ratios, clustering properties, galaxy cluster abundances and, therefore, constraining cosmological parameters. We present a new technique for detecting gal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33543650d31975075c4babc6bacb0206
https://doi.org/10.1111/j.1365-2966.2011.20107.x

On the intermediate-redshift central stellar mass-halo mass relation, and implications for the evolution of the most massive galaxies since z~1

Autor: Vinu Vikram, Danilo Marchesini, Diego Capozzi, Claudia Maraston, Roy R. Gal, Marcella Carollo, Zheng Zheng, Alessandro Rettura, Vincent Bouillot, Francesco Shankar, Ravi K. Sheth, A. Meert, Marc Huertas-Company, Peter Behroozi, Begoña Ascaso, Hong Guo, Brian C. Lemaux, Mariangela Bernardi, Christopher J. Conselice, Lori M. Lubin, Andrey V. Kravtsov, Andrea Cattaneo, Stewart Buchan

Publikováno v: Shankar, F, Guo, H, Bouillot, V, Rettura, A, Meert, A, Buchan, S, Kravtsov, A, Bernardi, M, Sheth, R, Vikram, V, Marchesini, D, Behroozi, P, Zheng, Z, Maraston, C, Ascaso, B, Lemaux, B C, Capozzi, D, Huertas-company, M, Gal, R R, Lubin, L M, Conselice, C J, Carollo, M & Cattaneo, A 2014, ' On the intermediate-redshift central stellar mass-halo mass relation, and implications for the evolution of the most massive galaxies since z ∼ 1 ', The Astrophysical Journal, vol. 797, no. 2, L27 . https://doi.org/10.1088/2041-8205/797/2/L27

The stellar mass-halo mass relation is a key constraint in all semi-analytic, numerical, and semi-empirical models of galaxy formation and evolution. However, its exact shape and redshift dependence remain debated. Several recent works support a rela

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f10451cbc35d02adb1fb677e5460804b
http://arxiv.org/abs/1411.2597

CLASH: Precise new constraints on the mass profile of the galaxy cluster A2261

Autor: Timo Anguita, Daniel D. Kelson, Peter Melchior, Doron Lemze, Stephanie Jouvel, Ofer Lahav, Sara Ogaz, Dan Maoz, Michael J. Kurtz, S. Rodney, Saurabh Jha, Margaret J. Geller, John Moustakas, Matthias Bartelmann, Holland C. Ford, Kenneth J. Rines, Andisheh Mahdavi, Marc Postman, Anton M. Koekemoer, Antonaldo Diaferio, Ole Host, Keiichi Umetsu, Yolanda Jiménez-Teja, Mario Nonino, Tom Broadhurst, Adi Zitrin, Genevieve J. Graves, Mauricio Carrasco, Wei Zheng, Elinor Medezinski, Massimo Meneghetti, Megan Donahue, Piero Rosati, Leopoldo Infante, Leonidas A. Moustakas, Adam G. Riess, Dan Coe, Larry Bradley, Begoña Ascaso, Alberto Molino, Narciso Benítez, Julian Merten, Rychard Bouwens, Stella Seitz, Or Graur, Claudio Grillo

We precisely constrain the inner mass profile of Abell 2261 (z=0.225) for the first time and determine this cluster is not "over-concentrated" as found previously, implying a formation time in agreement with {\Lambda}CDM expectations. These results a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64838da7d9f7dd26604f33d3a3becb12
https://resolver.caltech.edu/CaltechAUTHORS:20160217-121958910

New Multiply-Lensed Galaxies Identified in ACS/NIC3 Observations of Cl0024+1654 Using an Improved Mass Model

Autor: Begoña Ascaso, Yoel Rephaeli, James Jee, Larry Bradley, Adi Zitrin, Holland C. Ford, Narciso Benítez, Keiichi Umetsu, Elinor Medezinski, Tom Broadhurst, Dan Coe, Wei Zheng

We present an improved strong-lensing analysis of Cl0024+1654 ($z$=0.39) using deep HST/ACS/NIC3 images, based on 33 multiply-lensed images of 11 background galaxies. These are found with a model that assumes mass approximately traces light, with a l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dc18259761011ff38640ef3f7be908d