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. Alfonso 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 PressDate
2015-01-01Citation
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/stv1317Funded 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/1Project
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/FP7/259586Editor's Version
http://dx.doi.org/10.1093/mnras/stv1317Subjects
Catalogues; Cosmology: observations; Galaxies: clusters: general; Galaxies: evolution; Large-scale structure of Universe; X-rays: galaxies: clusters; FísicaNote
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 reservedRights
© 2015 The AuthorsAbstract
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)
Files in this item
Google Scholar:Ascaso, B.
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Benítez, N.
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Fernández-Soto, A.
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Arnalte-Mur, P.
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López-Sanjuan, C.
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Molino, A.
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Schoenell, W.
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Jiménez-Teja, Y.
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Merson, A. I.
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Huertas-Company, M.
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Díaz-García, L. A.
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Martínez, V. J.
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Cenarro, A. J.
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Dupke, R.
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Márquez, I.
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Masegosa, J.
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Nieves-Seoane, L.
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Pović, M.
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Varela, J.
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Viironen, K.
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Aguerri, J. Alfonso L
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Olmo, A.del
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Moles, M.
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Perea, J.
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Alfaro, E.
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Aparicio-Villegas, T.
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Broadhurst, Tom J.
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Cabrera-Caño, J.
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Castander, F. J.
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Cepa, J.
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Cerviño, M.
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González-Delgado, R. M
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Cristóbal-Hornillos, D.
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Hurtado-Gil, L.
-
Husillos, C.
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Infante, L.
-
Prada, F.
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Quintana, J. M.
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