Cosmology with XMM galaxy clusters: the X-CLASS/GROND catalogue and photometric redshifts
Cosmology with XMM galaxy clusters: the X-CLASS/GROND catalogue and photometric redshifts
The XMM Cluster Archive Super Survey (X-CLASS) is a
serendipitously detected X-ray-selected sample of 845 galaxy clusters based on
2774 XMM archival observations and covering an approximately 90 deg2
spread across the high-Galactic latitude (|b| > 20◦) sky.
The primary goal of this survey is to produce a well-selected sample of galaxy
clusters on which cosmological analyses can be performed. This paper presents
the photometric redshift follow[1]up of a high
signal-to-noise ratio subset of 265 of these clusters with declination δ <
+20◦ with Gamma-Ray Burst Optical and Near-Infrared Detector
(GROND), a 7-channel (grizJHK) simultaneous imager on the MPG 2.2-m
telescope at the ESO La Silla Observatory. We use a newly developed technique
based on the red sequence colour–redshift relation, enhanced with information
coming from the X-ray detection to provide photometric redshifts for this
sample. We determine photometric redshifts for 232 clusters, finding a median
redshift of z = 0.39 with an accuracy of Δz = 0.02(1 + z) when compared
to a sample of 76 spectroscopically confirmed clusters. We also compute X-ray
luminosities for the entire sample and find a median bolometric luminosity of
7.2 × 1043 erg s−1 and a median temperature of 2.9 keV.
We compare our results to those of the XMM-XCS and XMM-XXL
surveys, finding good agreement in both samples. The X-CLASS catalogue is
available online at http://xmm-lss.in2p3.fr:8080/l4sdb/.
astro-ph.CO, astro-ph.GA
662-684
Ridl, J.
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Clerc, N.
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Sadibekova, T.
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Faccioli, L.
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Pacaud, F.
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Greiner, J.
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Krühler, T.
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Rau, A.
a78864c1-5894-4bf4-9c2a-f0009a5f089b
Salvato, M.
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Menzel, M.-L.
d7cca559-7992-4f9e-8255-e5bd6a7d0091
Steinle, H.
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Wiseman, P.
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Nandra, K.
b0d1151f-c055-4142-bec1-8de21ee72745
Sanders, J.
615c0f62-9ac4-4d6a-95d8-88691b1e39c4
Ridl, J.
73892b2a-c59b-42f0-b08a-a2b7388c638c
Clerc, N.
8df82cd8-d0d7-4e11-b0d8-c85e0f2ba0c4
Sadibekova, T.
ea430a36-041d-4078-aab0-89c868d5987b
Faccioli, L.
29d0f897-47f3-44dd-95b0-5d8c8a2453ca
Pacaud, F.
589db711-1c93-4b84-98bf-594fc4285994
Greiner, J.
d9bc880b-1515-4291-b794-dd81b4e28c86
Krühler, T.
d540e044-f2c6-4144-96ef-2b02a4bc6e5e
Rau, A.
a78864c1-5894-4bf4-9c2a-f0009a5f089b
Salvato, M.
4212c299-c989-4b31-9c2f-c0238f082675
Menzel, M.-L.
d7cca559-7992-4f9e-8255-e5bd6a7d0091
Steinle, H.
582ccc2f-a55c-4d35-bcca-a165a0be3722
Wiseman, P.
865f95f8-2200-46a8-bd5e-3ee30bb44072
Nandra, K.
b0d1151f-c055-4142-bec1-8de21ee72745
Sanders, J.
615c0f62-9ac4-4d6a-95d8-88691b1e39c4
Ridl, J., Clerc, N., Sadibekova, T., Faccioli, L., Pacaud, F., Greiner, J., Krühler, T., Rau, A., Salvato, M., Menzel, M.-L., Steinle, H., Wiseman, P., Nandra, K. and Sanders, J.
(2017)
Cosmology with XMM galaxy clusters: the X-CLASS/GROND catalogue and photometric redshifts.
Monthly Notices of the Royal Astronomical Society, 468 (1), .
(doi:10.1093/mnras/stx394).
Abstract
The XMM Cluster Archive Super Survey (X-CLASS) is a
serendipitously detected X-ray-selected sample of 845 galaxy clusters based on
2774 XMM archival observations and covering an approximately 90 deg2
spread across the high-Galactic latitude (|b| > 20◦) sky.
The primary goal of this survey is to produce a well-selected sample of galaxy
clusters on which cosmological analyses can be performed. This paper presents
the photometric redshift follow[1]up of a high
signal-to-noise ratio subset of 265 of these clusters with declination δ <
+20◦ with Gamma-Ray Burst Optical and Near-Infrared Detector
(GROND), a 7-channel (grizJHK) simultaneous imager on the MPG 2.2-m
telescope at the ESO La Silla Observatory. We use a newly developed technique
based on the red sequence colour–redshift relation, enhanced with information
coming from the X-ray detection to provide photometric redshifts for this
sample. We determine photometric redshifts for 232 clusters, finding a median
redshift of z = 0.39 with an accuracy of Δz = 0.02(1 + z) when compared
to a sample of 76 spectroscopically confirmed clusters. We also compute X-ray
luminosities for the entire sample and find a median bolometric luminosity of
7.2 × 1043 erg s−1 and a median temperature of 2.9 keV.
We compare our results to those of the XMM-XCS and XMM-XXL
surveys, finding good agreement in both samples. The X-CLASS catalogue is
available online at http://xmm-lss.in2p3.fr:8080/l4sdb/.
Text
stx394
- Version of Record
Available under License Other.
More information
Accepted/In Press date: 13 February 2017
e-pub ahead of print date: 17 February 2017
Additional Information:
Accepted for publication in MNRAS. 26 pages, 14 figures. Catalogue information available on request to the authors pending a digital version (see in paper)
Keywords:
astro-ph.CO, astro-ph.GA
Identifiers
Local EPrints ID: 484075
URI: http://eprints.soton.ac.uk/id/eprint/484075
ISSN: 1365-2966
PURE UUID: ef616e34-2085-40d3-9c17-d42e7aecad07
Catalogue record
Date deposited: 09 Nov 2023 18:11
Last modified: 18 Mar 2024 03:43
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Contributors
Author:
J. Ridl
Author:
N. Clerc
Author:
T. Sadibekova
Author:
L. Faccioli
Author:
F. Pacaud
Author:
J. Greiner
Author:
T. Krühler
Author:
A. Rau
Author:
M. Salvato
Author:
M.-L. Menzel
Author:
H. Steinle
Author:
K. Nandra
Author:
J. Sanders
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