J/A+A/647/A106 PSZSPT, joint Planck and SPT-SZ cluster catalog (Melin+, 2021)
PSZSPT: a joint Planck and SPT-SZ cluster catalog.
Melin J.-B., Bartlett J.G., Tarrio P., Pratt G.W.
<Astron. Astrophys. 647, A106 (2021)>
=2021A&A...647A.106M 2021A&A...647A.106M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Millimetric/submm sources ; Surveys
Keywords: galaxies: clusters: general - large-scale structure of Universe -
catalogs
Abstract:
We present the first cluster catalogue extracted from combined space-
(Planck) and ground-based (South Pole Telescope; SPT-SZ) millimeter
data. We develop and apply a Matched Multi-Filter (MMF) capable of
dealing with the different transfer functions and resolutions of the
two datasets. We verified that it produces results consistent with
publications from Planck and SPT collaborations when applied on the
datasets individually. We also verified that Planck and SPT-SZ cluster
fluxes are consistent with each other. When applied blindly to the
combined dataset, the MMF generated a catalogue of 419 detections
(S/N>5), of which 323 are already part of the SPT-SZ or PSZ2
catalogues; 54 are new SZ detections, identified in other catalogues
or surveys; and 42 are new unidentified candidates. The MMF takes
advantage of the complementarity of the two datasets, Planck being
particularly useful for detecting clusters at low redshift (z<0.3)
while SPT is efficient at finding higher redshift (z>0.3) sources.
This work represents a proof of concept that blind cluster extraction
can be performed on combined, inhomogeneous millimeter datasets
acquired from space and ground. This result is of prime importance for
planned ground-based cosmic microwave background (CMB) experiments
(e.g., Simons Observatory, CMB-S4) and envisaged CMB space missions
(e.g., PICO, Backlight) that will detect hundreds of thousands of
clusters in the low mass regime (M500<1014M☉), for which the
various sources of intra-cluster emission (gas, dust, synchrotron)
will be of same order of magnitude and hence require broad
ground+space frequency coverage with comparable spatial resolution for
adequate separation.
Description:
PSZSPT catalogue: This catalogue was obtained from Planck and
SPT-SZ surveys, using a joint space+ground detection method. The
details of its construction can be found in Sections 3 and 6 of the
paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 420 419 PSZSPT catalog
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See also:
VII/110 : Rich Clusters of Galaxies (Abell+ 1989)
J/A+A/534/A109 : MCXC Meta-Catalogue X-ray galaxy Clusters (Piffaretti+, 2011)
J/ApJ/757/83 : The Blanco Cosmology Survey (BCS) (Desai+, 2012)
J/ApJS/216/20 : Blanco Cosmology Survey (BCS) new reduction (Bleem+, 2015)
J/ApJS/216/27 : Galaxy clusters discovered in SPT-SZ survey (Bleem+, 2015)
J/A+A/594/A27 : Planck Sunyaev-Zeldovich sources (PSZ2) (Planck+, 2016)
J/A+A/626/A7 : ComPRASS catalogue (Tarrio+, 2019)
J/MNRAS/488/739 : MARD-Y3 catalog (Klein+, 2019)
https://www.galaxyclusterdb.eu/ : MCSZ Home Page
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 17 A17 --- Name Name of the candidate, PSZSPT JHHMM+DDMM
19- 33 F15.11 deg RAdeg Right ascension (J2000)
35- 49 F15.11 deg DEdeg Declination (J2000)
51- 64 F14.10 deg GLON Galactic longitude
66- 79 F14.10 deg GLAT Galactic latitude
81- 88 F8.5 --- SNR Signal-to-noise ratio
90 I1 --- Rank [0/3] Rank of the candidate
92-100 F9.6 --- z ?=-1 Redshift of the candidate
102-109 A8 --- r_z Origin of the redshift
111-123 E13.7 Msun M500 ?=-1 Estimated cluster mass
125-137 E13.7 Msun b_M500 ?=-1 Lower bound (68% confidence) on the mass
139-151 E13.7 Msun B_M500 ?=-1 Upper bound (68% confidence) on the mass
153-168 A16 --- SPT SPT cluster associated to the candidate,
SPT-CLJHHMM+DDMM
170-187 A18 --- PSZ2 PSZ2 cluster associated to the candidate,
PSZ2 GLLL.ll+BB.bb
189-206 A18 --- MCSZ MCSZ cluster associated to the candidate,
PLCK GLLL.l+BB.b, PSZ1 GLLL.ll+BB.bb,
PSZ2 GLLL.ll+BB.bb or SPT-CLJHHMM+DDMM
208-219 A12 --- MCXC MCXC cluster associated to the candidate,
JHHMM.m+DDMM (MCXC JHHMM.m+DDMM in Simbad)
221-239 A19 --- ComPRASS ComPRASS cluster associated to the candidate,
PSZRX GLLL.ll+BB.bb (not yet in Simbad)
241-245 A5 --- Abell Abell cluster associated to the candidate,
NNNN or SNNNN A NNNN or A SNNNN in Simbad)
247-260 A14 --- BCS BCS cluster associated to the candidate,
JHHMMSS+DDMM.m
(LCS-CL JHHMMSS+DDMM.m in Simbad)
262-281 A20 --- MARD MARD-Y3 cluster associated to the candidate,
MARDJHHMMSS.s+DDMMSS (not yet in Simbad)
283-302 A20 --- WHY WHY cluster associated to the candidate,
JHHMMSS.s+DDMMSS or WHY JHHMMSS.s+DDMMSS
(not in Simbad)
304-320 A17 --- SIMBAD Simbad counterpart in a 20 arcmin radius when
no counterpart in the catalogs (1)
322-338 A17 --- NED NED counterpart in a 20 arcmin radius when
no counterpart in the catalogs (1)
340-420 A81 --- Notes Notes on specific candidates
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Note (1): We search for counterparts in SIMBAD and NED for the 48 detections
which are not matched to any of the clusters in the studied catalogues.
We set the search radius to 20 arcmin for the two databases and we look for
galaxy cluster type objects. We did not find a cluster in the search radius
for 34 detections.
We set rank=0 (meaning unidentified) for these 34 detections.
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Acknowledgements:
Jean-Baptiste Melin, jean-baptiste.melin(at)cea.fr
References:
Wehn et al., 2018MNRAS.475..343W 2018MNRAS.475..343W, WHY catalogue
(End) Patricia Vannier [CDS] 14-Jan-2021