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Galaxy clusters and groups in the ALHAMBRA survey

Author
Ascaso, B.; Benítez, N.; Fernández-Soto, A.; Arnalte-Mur, P.; López-Sanjuan, C.; Molino, A.; Schoenell, W.; Jiménez-Teja, Y.; Merson, A. I.; Huertas-Company, M.; Díaz-García, L. A.; Martínez, V. J.; Cenarro, A. J.; Dupke, R.; Márquez, I.; Masegosa, J.; Nieves-Seoane, L.; Pović, M.; Varela, J.; Viironen, K.; Aguerri, J. A L; Olmo, A.del; Moles, M.; Perea, J.; Alfaro, E.; Aparicio-Villegas, T.; Broadhurst, Tom J.; Cabrera-Caño, J.; Castander, F. J.; Cepa, J.; Cerviño, M.; González-Delgado, R. M; Cristóbal-Hornillos, D.; Hurtado-Gil, L.; Husillos, C.; Infante, L.; Prada, F.; Quintana, J. M.
Publisher
Oxford University Press
Date
2015-01-01
Citation
10.1093/mnras/stv1317
Monthly Notices of Royal Astronomical Society 452.1 (2015): 549-565
 
 
 
ISSN
0035-8711 (print); 1365-2966 (online)
DOI
10.1093/mnras/stv1317
Funded by
We acknowledge support from the Spanish Ministry for Economy and Competitiveness and FEDER funds through grants AYA2010-22111-C03-02, AYA2010-15169, AYA2012-30789, AYA2013-48623-C2-2, AYA2013-42227-P, AYA2013-40611-P, AYA2011-29517-C03-01, AYA2014-58861-C3-1, AYA2010-15081, Generalitat Valenciana projects PROMETEOII/2014/ 060, Junta de Andalucía grant TIC114, JA2828, Aragón Gorvernment - Research Group E103. MP acknowledges financial support from JAE-Doc program of the Spanish National Research Council (CSIC), co-funded by the European Social Fund. PAM acknowledges support from ERC StG Grant DEGAS-259586 and from the Science and Technology Facilities Council grants ST/K003305/1 and ST/L00075X/1
Project
Gobierno de España. AYA2010-22111-C03- 02; Gobierno de España. AYA2010-15169; Gobierno de España. AYA2012-30789; Gobierno de España. AYA2013-48623-C2- 2; Gobierno de España. AYA2013-42227-P; Gobierno de España. AYA2013-40611-P; Gobierno de España. AYA2011-29517- C03-01; Gobierno de España. AYA2010-15081; info:eu-repo/grantAgreement/EC/FP7/259586
Editor's Version
http://dx.doi.org/10.1093/mnras/stv1317
Subjects
Catalogues; Cosmology: observations; Galaxies: clusters: general; Galaxies: evolution; Large-scale structure of Universe; X-rays: galaxies: clusters; Física
URI
http://hdl.handle.net/10486/672961
Note
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved
Rights
© 2015 The Authors

Abstract

We present a catalogue of 348 galaxy clusters and groups with 0.2 < z < 1.2 selected in the 2.78 deg2 ALHAMBRA Survey. The high precision of our photometric redshifts, close to 1%, and the wide spread of the seven ALHAMBRA pointings ensure that this catalogue has better mass sensitivity and is less affected by cosmic variance than comparable samples. The detection has been carried out with the Bayesian Cluster Finder (BCF), whose performance has been checked in ALHAMBRA-like light-cone mock catalogues. Great care has been taken to ensure that the observable properties of the mocks photometry accurately correspond to those of real catalogues. From our simulations, we expect to detect galaxy clusters and groups with both 70% completeness and purity down to dark matter halo masses of Mh 3 × 1013M⊙ for z < 0.85. Cluster redshifts are expected to be recovered with 0.6% precision for z < 1. We also expect to measure cluster masses with σMh|M CL 0.25 − 0.35 dex precision down to 3 × 1013M⊙, masses which are 50% smaller than those reached by similar work. We have compared these detections with previous optical, spectroscopic and X- rays work, finding an excellent agreement with the rates reported from the simulations. We have also explored the overall properties of these detections such as the presence of a colour-magnitude relation, the evolution of the photometric blue fraction and the clustering of these sources in the different ALHAMBRA fields. Despite the small numbers, we observe tentative evidence that, for a fixed stellar mass, the environment is playing a crucial role at lower redshifts (z<0.5)
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Google™ Scholar:Ascaso, B. - Benítez, N. - Fernández-Soto, A. - Arnalte-Mur, P. - López-Sanjuan, C. - Molino, A. - Schoenell, W. - Jiménez-Teja, Y. - Merson, A. I. - Huertas-Company, M. - Díaz-García, L. A. - Martínez, V. J. - Cenarro, A. J. - Dupke, R. - Márquez, I. - Masegosa, J. - Nieves-Seoane, L. - Pović, M. - Varela, J. - Viironen, K. - Aguerri, J. A L - Olmo, A.del - Moles, M. - Perea, J. - Alfaro, E. - Aparicio-Villegas, T. - Broadhurst, Tom J. - Cabrera-Caño, J. - Castander, F. J. - Cepa, J. - Cerviño, M. - González-Delgado, R. M - Cristóbal-Hornillos, D. - Hurtado-Gil, L. - Husillos, C. - Infante, L. - Prada, F. - Quintana, J. M.

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