Search: WFRF:(Plionis E.) >
The XXL Survey: XXV...
The XXL Survey: XXV. Cosmological analysis of the C1 cluster number counts
-
- Pacaud, F. (author)
- Universität Bonn,University of Bonn
-
- Pierre, M. (author)
- Université Paris-Saclay,University Paris-Saclay
-
- Melin, J. B. (author)
- Université Paris-Saclay,University Paris-Saclay
-
show more...
-
- Adami, C. (author)
- Laboratoire d'Astrophysique de Marseille
-
- Evrard, A. E. (author)
- University of Michigan
-
- Galli, S. (author)
- Institut d 'Astrophysique de Paris
-
- Gastaldello, F. (author)
- Istituto nazionale di astrofisica (INAF)
-
- Maughan, B. (author)
- University of Bristol
-
- Sereno, M. (author)
- Universita di Bologna,University of Bologna,Istituto nazionale di astrofisica (INAF)
-
- Alis, S. (author)
- Istanbul Universitesi,Istanbul University
-
- Altiéri, B. (author)
- European Space Astronomy Centre (ESAC)
-
- Birkinshaw, M. (author)
- University of Bristol
-
- Chiappetti, L. (author)
- Istituto nazionale di astrofisica (INAF)
-
- Faccioli, L. (author)
- Université Paris-Saclay,University Paris-Saclay
-
- Giles, P. (author)
- University of Bristol
-
- Horellou, Cathy, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Iovino, A. (author)
- Istituto nazionale di astrofisica (INAF)
-
- Koulouridis, E. (author)
- Université Paris-Saclay,University Paris-Saclay
-
- Le Fevre, J. P. (author)
- Institut de Recherche sur les Lois Fondamentales de l'Univers
-
- Lidman, C. (author)
- Australian National University
-
- Lieu, M. (author)
- European Space Astronomy Centre (ESAC)
-
- Maurogordato, S. (author)
- Université Nice Sophia Antipolis (UNS)
-
- Moscardini, L. (author)
- Istituto nazionale di astrofisica (INAF),Istituto Nazionale di Fisica Nucleare,National Institute for Nuclear Physics,Universita di Bologna,University of Bologna
-
- Plionis, M. (author)
- Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki,National Observatory of Athens
-
- Poggianti, B. M. (author)
- Istituto nazionale di astrofisica (INAF)
-
- Pompei, E. (author)
- European Southern Observatory Santiago
-
- Sadibekova, T. (author)
- Université Paris-Saclay,University Paris-Saclay
-
- Valtchanov, I. (author)
- European Space Astronomy Centre (ESAC)
-
- Willis, J. (author)
- University of Victoria
-
show less...
-
(creator_code:org_t)
- 2018-11-20
- 2018
- English.
-
In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 620
- Related links:
-
https://research.cha... (primary) (free)
-
show more...
-
https://www.aanda.or...
-
https://research.cha...
-
https://research.cha...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Context. We present an estimation of cosmological parameters with clusters of galaxies. Aims. We constrain the Ωm, σ8, and w parameters from a stand-alone sample of X-ray clusters detected in the 50 deg2 XMM-XXL survey with a well-defined selection function. Methods. We analyse the redshift distribution of a sample comprising 178 high signal-to-noise ratio clusters out to a redshift of unity. The cluster sample scaling relations are determined in a self-consistent manner. Results. In a lambda cold dark matter (ΛCDM) model, the cosmology favoured by the XXL clusters compares well with results derived from the Planck Sunyaev-Zel'dovich clusters for a totally different sample (mass/redshift range, selection biases, and scaling relations). However, with this preliminary sample and current mass calibration uncertainty, we find no inconsistency with the Planck CMB cosmology. If we relax the w parameter, the Planck CMB uncertainties increase by a factor of ~10 and become comparable with those from XXL clusters. Combining the two probes allows us to put constraints on Ωm = 0.316 ± 0.060, σ8 = 0.814 ± 0.054, and w = -1.02 ± 0.20. Conclusions. This first self-consistent cosmological analysis of a sample of serendipitous XMM clusters already provides interesting insights into the constraining power of the XXL survey. Subsequent analysis will use a larger sample extending to lower confidence detections and include additional observable information, potentially improving posterior uncertainties by roughly a factor of 3.
Subject headings
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
Keyword
- Cosmological parameters
- Surveys
- X-rays: galaxies: clusters
- Galaxies: clusters: intracluster medium
- Large-scale structure of Universe
Publication and Content Type
- for (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Pacaud, F.
-
Pierre, M.
-
Melin, J. B.
-
Adami, C.
-
Evrard, A. E.
-
Galli, S.
-
show more...
-
Gastaldello, F.
-
Maughan, B.
-
Sereno, M.
-
Alis, S.
-
Altiéri, B.
-
Birkinshaw, M.
-
Chiappetti, L.
-
Faccioli, L.
-
Giles, P.
-
Horellou, Cathy, ...
-
Iovino, A.
-
Koulouridis, E.
-
Le Fevre, J. P.
-
Lidman, C.
-
Lieu, M.
-
Maurogordato, S.
-
Moscardini, L.
-
Plionis, M.
-
Poggianti, B. M.
-
Pompei, E.
-
Sadibekova, T.
-
Valtchanov, I.
-
Willis, J.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Analytical Chemi ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Mathematics
-
and Probability Theo ...
- Articles in the publication
-
Astronomy and As ...
- By the university
-
Chalmers University of Technology