J/A+A/659/A126 PSZ2 cluster candidates. III. (Aguado-Barahona+, 2022)
Velocity dispersion and dynamical masses for 388 galaxy clusters and groups.
Calibrating the MSZ-Mdyn scaling relation for the PSZ2 sample.
Aguado-Barahona A., Rubino-Martin J.A., Ferragamo A., Barrena R.,
Streblyanska A., Tramonte D.
<Astron. Astrophys., 659, A126 (2022)>
=2022A&A...659A.126A 2022A&A...659A.126A (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts ; Velocity dispersion
Keywords: galaxies: clusters: general - catalogs -
large-scale structure of Universe
Abstract:
The second catalogue of Planck Sunyaev-Zeldovich (SZ) sources,
hereafter PSZ2, represents the largest galaxy cluster sample selected
by means of their SZ signature in a full-sky survey. Using telescopes
at the Canary Island observatories, we conducted the long-term
observational program 128- MULTIPLE-16/15B (hereafter LP15), a large
and complete optical follow-up campaign of all the unidentified PSZ2
sources in the northern sky, with declinations above -15° and no
correspondence in the first Planck catalogue PSZ1. This paper is the
third and last in the series of LP15 results, after Streblyanska et
al. (2019A&A...628A..13S 2019A&A...628A..13S, Cat. J/A+A/628/A13) and Aguado-Barahona et
al. (2019A&A...631A.148A 2019A&A...631A.148A, Cat. J/A+A/631/A148), and presents all the
spectroscopic observations of the full program. We complement these
LP15 spectroscopic results with Sloan Digital Sky Survey archival data
and other observations from a previous program (ITP13-08), and present
a catalogue of 388 clusters and groups of galaxies including estimates
of their velocity dispersion. The majority of them (356) are optical
counterparts of PSZ2 sources. A subset of 297 of those clusters are
used to construct the MSZ - Mdyn scaling relation based on the
estimated SZ mass from Planck measurements and our dynamical mass
estimates. We discuss and correct for different statistical and
physical biases in the estimation of the masses, such as the Eddington
bias when estimating MSZ and the aperture and the number of galaxies
used to calculate Mdyn. The SZ-to-dynamical mass ratio for those 297
PSZ2 clusters is (1-B)=0.80±0.04(stat)±0.05(sys), with only
marginal evidence for a possible mass dependence for this factor. Our
value is consistent with previous results in the literature, but is
associated with a significantly smaller uncertainty due to the use of
the largest sample size for this type of study.
Description:
Here, we present the spectroscopic data of the full program. In total,
94 PSZ2 sources were observed, 55 at the GTC and 39 at the TNG. We
were able to estimate the velocity dispersion for 82 clusters. In
addition, we used 47 clusters from the ITP sample and 259 clusters
from the SDSS archival data to build a statistically representative
sample of the PSZ2 in the northern hemisphere (PSZ2-North).
We present the velocity dispersion and dynamical mass of 362 objects
confirmed as an optical counterpart of a PSZ2 source, 356 from the
PSZ2-North sample and 9 from outside. We also discuss 26 clusters and
groups that do not fulfill the matching criteria to be a counterpart
of the SZ signal.
table.dat is an additional table with detailed information for all
cluster member detected for 362 PSZ2 optical counterparts mentioned in
the tablea1.dat
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 132 362 362 PSZ2 optical counterparts presented in
this paper
table.dat 59 13637 Additional table with detailed information for
all cluster member detected for 362 PSZ2
optical counterparts mentioned in the tablea1.dat
tablea2.dat 111 26 26 clusters and groups beyond PSZ2
--------------------------------------------------------------------------------
See also:
J/A+A/628/A13 : PSZ2 cluster candidates. I. (Streblyanska+, 2019)
J/A+A/631/A148 : PSZ2 cluster candidates. II. (Aguado-Barahona+, 2019)
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID Identification number (1)
5 A1 --- m_ID [AB] Multiplicity index on ID (1)
6 A1 --- n_ID [a] a = Substructured
8- 25 A18 --- PSZ2 PSZ2 name (PSZ2 GLLL.ll+BB.bb)
27- 28 I2 h RAh Right ascension (J2000)
30- 31 I2 min RAm Right ascension (J2000)
33- 37 F5.2 s RAs Right ascension (J2000)
39 A1 --- DE- Declination sign (J2000)
40- 41 I2 deg DEd Declination (J2000)
43- 44 I2 arcmin DEm Declination (J2000)
46- 49 F4.1 arcsec DEs Declination (J2000)
51- 53 I3 --- N1.5 Number of cluster members used to
determine the velocity dispersion for
aperture 1.5xr200
55- 57 I3 --- N1 ?=- Number of cluster members used to
determine the velocity dispersion for
aperture 1xr200
59- 63 F5.3 --- z1.5 Redshift for aperture 1.5xr200
65- 69 F5.3 --- z1 ?=- Redshift for aperture 1xr200
71- 76 F6.4 --- zBCG ?=- BCG redshift
78- 81 I4 km/s sigma200-1.5 Velocity dispersion for
aperture 1.5xr200
83- 85 I3 km/s e_sigma200-1.5 Velocity dispersion for
aperture 1.5xr200 error
87- 90 I4 km/s sigma200-1 ?=- Velocity dispersion for
aperture 1xr200
92- 94 I3 km/s e_sigma200-1 ? Velocity dispersion for
aperture 1xr200 error
96- 99 F4.2 10+15Msun M500-1.5 Mass M500 for aperture 1.5xr200
101-104 F4.2 10+15Msun e_M500-1.5 Mass M500 for aperture 1.5xr200 error
106-109 F4.2 10+15Msun M500-1 ?=- Mass M500 for aperture 1xr200
111-114 F4.2 10+15Msun e_M500-1 ? Mass M500 for aperture 1xr200 error
116-119 F4.2 10+15Msun M500SZ ?=- Mass M500 of SZ source
121-124 F4.2 10+15Msun e_M500SZ ? Mass M500 of SZ source error
126 I1 --- Flag [0/2] Flag (2)
128-132 A5 --- DataSet Data set (ITP13, LP15 or SDSS)
--------------------------------------------------------------------------------
Note (1): ID followed by an A or B label indicates the presence of multiple
clusters associated with the same SZ source.
Note (2): This flag indicates whether an object is used in Sect.5 as follows:
0 = Not used
1 = Used in both samples (1.5 and 1xr200)
2 = Used only in the sample 1.5xr200
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- PSZ2 PSZ2 name (PSZ2 GLLL.ll+BB.bb)
20- 32 A13 --- ID Identifier for cluster member
34- 42 F9.5 deg RAdeg Right ascension (J2000)
44- 52 F9.5 deg DEdeg Declination (J2000)
54- 59 I6 km/s cz Measured velocity
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- Field Field (PSZ2 GLLL.ll+BB.bb)
20- 21 I2 h RAh Right ascension (J2000)
23- 24 I2 min RAm Right ascension (J2000)
26- 30 F5.2 s RAs Right ascension (J2000)
32 A1 --- DE- Declination sign (J2000)
33- 34 I2 deg DEd Declination (J2000)
36- 37 I2 arcmin DEm Declination (J2000)
39- 42 F4.1 arcsec DEs Declination (J2000)
44- 45 I2 --- N1.5 Number of cluster members used to
determine the velocity dispersion for
aperture 1.5xr200
47- 48 I2 --- N1 ?=- Number of cluster members used to
determine the velocity dispersion for
aperture 1xr200
50- 54 F5.3 --- z1.5 Redshift for aperture 1.5xr200
56- 60 F5.3 --- z1 ?=- Redshift for aperture 1xr200
62- 67 F6.4 --- zBCG ?=- BCG redshift
69- 72 I4 km/s sigma200-1.5 Velocity dispersion for
aperture 1.5xr200
74- 76 I3 km/s e_sigma200-1.5 Velocity dispersion for
aperture 1.5xr200 error
78- 81 I4 km/s sigma200-1 ?=- Velocity dispersion for
aperture 1xr200
83- 85 I3 km/s e_sigma200-1 ? Velocity dispersion for
aperture 1xr200 error
87- 90 F4.2 10+15Msun M500-1.5 Mass M500 for aperture 1.5xr200
92- 95 F4.2 10+15Msun e_M500-1.5 Mass M500 for aperture 1.5xr200 error
97-100 F4.2 10+15Msun M500-1 ?=- Mass M500 for aperture 1xr200
102-105 F4.2 10+15Msun e_M500-1 ? Mass M500 for aperture 1xr200 error
107-111 A5 --- DataSet Data set (ITP13, LP15 or SDSS)
--------------------------------------------------------------------------------
History:
28-Sep-2022: From electronic version of the journal
19-Apr-2024: Additional table from author,
Alina Streblyanska, alina.streblyanska(at)iac.es
References:
Streblyanska et al., Paper I 2019A&A...628A..13S 2019A&A...628A..13S, Cat. J/A+A/628/A13
Aguado-barahona et al., Paper II 2019A&A...631A.148A 2019A&A...631A.148A, Cat. J/A+A/631/A148
(End) Patricia Vannier [CDS] 22-Aug-2022