J/A+A/691/A300 XMM-SERVS X-ray eXtended Galaxy Cluster catalog (Xu+, 2024)
XMM-SERVS X-ray eXtended Galaxy Cluster (XVXGC) catalog.
Xu W., Jiang L., Li R., Luo B., Brandt W.N., Zhang C., Erben T.
<Astron. Astrophys. 691, A300 (2024)>
=2024A&A...691A.300X 2024A&A...691A.300X (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy; X-ray sources
Keywords: catalogs - surveys - X-rays: galaxies: cluster
Abstract:
To explain the well-known tension between cosmological parameter
constraints obtained from the primary cosmic microwave background
(CMB) and those drawn from X-ray-selected galaxy cluster samples
identified with early data, we propose a possible explanation for the
incompleteness of detected clusters being higher than estimated.
Specifically, we suggest that certain types of galaxy groups or
clusters may have been overlooked in previous works. We aim to search
for galaxy groups and clusters with especially extended surface
brightness distributions by creating a new X-ray-selected catalog of
extended galaxy clusters from the XMM-Spitzer Extragalactic
Representative Volume Survey (XMM-SERVS) data, based on a dedicated
source detection and characterization algorithm optimized for extended
sources. Our state-of-the-art algorithm is composed of wavelet
filtering, source detection, and characterization. We carried out a
visual inspection of the optical image, and spatial distribution of
galaxies within the same redshift layer to confirm the existence of
clusters and estimated the cluster redshift with the spectroscopic and
photometric redshifts of galaxies. The growth curve analysis was used
to characterize the detections. We present a catalog of extended X-ray
galaxy clusters detected from the XMM-SERVS data. The XMM-SERVS X-ray
eXtended Galaxy Cluster (XVXGC) catalog features 141 cluster
candidates. Specifically, there are 53 clusters previously identified
as clusters with intracluster medium (ICM) emission (class 3); 40 that
were previously known as optical or infrared (IR) clusters, but
detected as X-ray clusters for the first time (class 2); and 48
identified as clusters for the first time (class 1). Compared with the
class 3 sample, the "class 1 + class 2" sample is systematically
fainter and exhibits a flatter surface brightness profile.
Specifically, the median flux in [0.5-2.0]keV band for `class 1 +
class 2" and class 3 sample is 1.288*10-14erg/s/cm2 and
1.887*10-14erg/s/cm2, respectively. The median values of beta
(i.e., the slope of the cluster surface brightness profile) are 0.506
and 0.573 for the "class 1 + class 2" and class 3 samples,
respectively.
Description:
The XMM-SERVS X-ray eXtended Galaxy Cluster (XVXGC) catalog is a
catalog of X-ray extended galaxy clusters based on the XMM-SERVS data,
covering ∼13deg2 area. There are 141 clusters included, whose
redshifts span 0-1.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
xvxgc.dat 348 141 XMM-SERVS X-ray eXtended Galaxy Cluster (XVXGC)
catalog (table B1)
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See also:
J/MNRAS/478/2132 : XMM-SERVS survey: XMM-LSS field new XMM-Newton point-sources
(Cheng+, 2018)
J/ApJS/256/21 : XMM-SERVS survey: X-ray sources for W-CDF-S + ELAIS-S1
(Ni+, 2021)
Byte-by-byte Description of file: xvxgc.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Name Designation (es_NNN)
7- 12 F6.3 deg RAdeg Right Ascension (J2000)
14- 20 F7.3 deg DEdeg Declination (J2000)
22 I1 --- Class Class
24- 26 I3 --- Nmem Number of member galaxies
28- 33 F6.4 --- z Redshift
35- 40 F6.4 --- e_z 1sigma error of redshift
42- 47 A6 --- r_z Source of redshift
49- 57 F9.3 --- ExtML Extension likelihood
59- 63 F5.3 arcmin Extent Extent
65- 69 F5.3 arcmin Rsig Significant radius
71- 75 F5.3 ct/s CRRsig Sum of count rate within Rsig
77- 81 F5.3 ct/s e_CRRsig 1sigma error of CRRsig
83- 87 F5.3 arcmin R500 R500 in the unit of arcmin
89- 93 F5.3 Mpc R500Mpc R500 in the unit of Mpc
95- 99 F5.3 Mpc e_R500Mpc 1sigma error of R500[Mpc]
101-105 F5.3 ct/s CRR500 Total count rate within R500
107-111 F5.3 ct/s e_CRR500 1sigma error of CR500
113-121 E9.4 mW/m2 F500 F500 at [0.5-2.0]keV (in erg/s/cm2)
123-131 E9.4 mW/m2 e_F500 1sigma error of F500 (in erg/s/cm2)
133-141 E9.4 10-7W L500 L500 at rest-frame [0.5-2.0]keV (in erg/s)
143-151 E9.4 10-7W e_L500 1sigma error of L500 (in erg/s)
153-157 F5.3 keV Tx Temperature of ICM
159-163 F5.3 keV e_Tx 1sigma error of Tx
165-173 E9.4 Msun M500 Mass within R500
175-183 E9.4 Msun e_M500 1sigma error of M500
185-189 F5.3 --- Beta Beta value
191-195 F5.3 --- e_Beta Lower 1sigma error of Beta
197-201 F5.3 --- E_Beta Upper 1sigma error of Beta
203-207 F5.3 arcmin Rc Core radius
209-213 F5.3 arcmin e_Rc Lower 1sigma error of Rc
215-219 F5.3 arcmin E_Rc Upper 1sigma error of Rc
221-348 A128 --- Comment Comment on this source
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Acknowledgements:
Weiwei Xu, wwxu(at)pku.edu.cn
(End) Weiwei Xu [PKU, NAOC], Patricia Vannier [CDS] 23-Sep-2024