J/MNRAS/468/3322 CoMaLit. V. Mass forecasting with proxies (Sereno+, 2017)
CoMaLit. V. Mass forecasting with proxies:
method and application to weak lensing calibrated samples.
Sereno M., Ettori S.
<Mon. Not. R. Astron. Soc., 468, 3322-3341 (2017)>
=2017MNRAS.468.3322S 2017MNRAS.468.3322S (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ;
Keywords: gravitational lensing: weak - methods: statistical - catalogues -
galaxies: clusters: general - galaxies: clusters: intracluster medium
Abstract:
Mass measurements of astronomical objects are most wanted but still
elusive. We need them to trace the formation and evolution of cosmic
structure but we can get direct measurements only for a minority. This
lack can be circumvented with a proxy and a scaling relation. The
twofold goal of estimating the unbiased relation and finding the right
proxy value to plug in can be hampered by systematics, selection
effects, Eddington/Malmquist biases and time evolution. We present a
Bayesian hierarchical method that deals with these issues. Masses to
be predicted are treated as missing data in the regression and are
estimated together with the scaling parameters. The calibration
subsample with measured masses does not need to be representative of
the full sample as far as it follows the same scaling relation. We
apply the method to forecast weak lensing calibrated masses of the
Planck, redMaPPer and MCXC clusters. Planck masses are biased low with
respect to weak lensing calibrated masses, with a bias more pronounced
for high-redshift clusters. MCXC masses are under-estimated by
∼20 per cent, which may be ascribed to hydrostatic bias. Packages and
catalogues are made available with the paper.
Description:
We applied the CoMaLit mass forecasting to three widely used cluster
samples: the PSZ2 catalogue of Planck detected clusters, the redMaPPer
catalogue of red-sequence filtered clusters and the meta-catalogue of
X-ray detected clusters MCXC. As calibration sample, we considered the
subsamples of clusters with measured WL mass. Catalogues of WL
calibrated masses are released with the paper. The Bayesian analysis
was performed with the publicly available r-package LIRA.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 108 1271 Catalogue of WL calibrated masses of the
PSZ2 clusters, Cat. J/A+A/594/A27
(HFIPCCSSZ-MMF3R2.08MWLc.dat)
table5.dat 91 26111 Catalogue of WL calibrated masses of the redMaPPer
clusters (redmapperdr8publicv6.3MWLc.dat)
table6.dat 107 1743 Catalogue of WL calibrated masses of the MCXC
clusters, Cat. J/A+A/534/A109 (mcxc_MWLc.dat)
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See also:
J/ApJS/199/34 : Clusters of galaxies in SDSS-III (Wen+, 2012)
J/ApJ/807/178 : Newly rich galaxy clusters identified in SDSS-DR12
(Wen+, 2015)
J/A+A/594/A27 : Planck Sunyaev-Zeldovich sources (PSZ2) (Plankc+, 2016)
J/A+A/534/A109 : MCXC Meta-Catalogue X-ray galaxy Clusters
(Piffaretti+, 2011)
J/ApJ/785/104 : redMaPPer. I. Algorithm applied to SDSS DR8 (Rykoff+, 2014)
J/ApJS/224/1 : redMaPPer cluster catalog from DES data (Rykoff+, 2016)
J/MNRAS/450/3665 : CoMaLit. III. LC2 catalog (Sereno+, 2015)
J/MNRAS/450/3675 : CoMaLit. IV. Sigma Catalogue (Sereno+, 2015)
Byte-by-byte Description of file: table?.dat
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Bytes Format Units Label Explanations
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2- 7 I6 --- Index Sequential number, within the table
10- 29 A20 --- Name Name (1)
31- 38 F8.4 deg RAdeg Right ascension (J2000)
40- 47 F8.4 deg DEdeg Declination (J2000)
49- 55 F7.4 --- z ?=-1 Redshifts
58- 63 F6.3 10+14Msun MWLc ?=- WL calibrated mass (2)
69- 73 F5.3 10+14Msun e_MWLc ?=- WL calibrated mass error (2)
76- 81 F6.3 10+14Msun MLC2 ?=- WL mass of the LC2-single
counterpart (2)
86- 91 F6.3 10+14Msun e_MLC2 ?=- WL mass of the LC2-single
counterpart error (2)
94- 99 F6.3 10+14Msun MCat ?=- Mass proxy from PSZ (table4) or
MCXC (table6) catalogue (2) (3)
104-108 F5.3 10+14Msun e_MCat ?=- Mass proxy error (2) (3)
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Note (1): Name as in the catalog :
table4.dat : PSZ2_GLLL.ll+BB.bb, PSZ2 GLLL.ll+BB.bb in Simbad
table5.dat : RMJHHMMSS.s+DDMMSS.s, [RRB2014] RM JHHMMSS.s+DDMMSS.s in Simbad
table6.dat: MCXC_JHHMM.m+DDMM, MCXC JHHMM.m+DDMM in Simbad
Note (2): Masses are within r500
Note (3): Catalog masses:
table4: SZ mass proxy MSZ and associated error, as from the Planck catalogue
table6: X-ray mass proxy MX and associated error from the MCXC catalogue
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History:
From electronic version of the journal
References:
Sereno & Ettori, Paper I 2015MNRAS.450.3633S 2015MNRAS.450.3633S
Sereno & Ettori, Paper II 2015MNRAS.450.3649S 2015MNRAS.450.3649S
Sereno, Paper III 2015MNRAS.450.3665S 2015MNRAS.450.3665S, Cat. J/MNRAS/450/3665
Sereno & Ettori, Paper IV 2015MNRAS.450.3675S 2015MNRAS.450.3675S, Cat. J/MNRAS/450/3975
(End) Patricia Vannier [CDS] 16-Mar-2020