2017A&A...597A.110R


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.26CEST23:42:47

2017A&A...597A.110R - Astronomy and Astrophysics, volume 597A, 110-110 (2017/1-1)

Non-parametric deprojection of NIKA SZ observations: Pressure distribution in the Planck-discovered cluster PSZ1 G045.85+57.71.

RUPPIN F., ADAM R., COMIS B., ADE P., ANDRE P., ARNAUD M., BEELEN A., BENOIT A., BIDEAUD A., BILLOT N., BOURRION O., CALVO M., CATALANO A., COIFFARD G., D'ADDABBO A., DE PETRIS M., DESERT F.-X., DOYLE S., GOUPY J., KRAMER C., LECLERCQ S., MACIAS-PEREZ J.F., MAUSKOPF P., MAYET F., MONFARDINI A., PAJOT F., PASCALE E., PEROTTO L., PISANO G., POINTECOUTEAU E., PONTHIEU N., PRATT G.W., REVERET V., RITACCO A., RODRIGUEZ L., ROMERO C., SCHUSTER K., SIEVERS A., TRIQUENEAUX S., TUCKER C. and ZYLKA R.

Abstract (from CDS):

The determination of the thermodynamic properties of clusters of galaxies at intermediate and high redshift can bring new insights into the formation of large-scale structures. It is essential for a robust calibration of the mass-observable scaling relations and their scatter, which are key ingredients for precise cosmology using cluster statistics. Here we illustrate an application of high resolution (<20arcsec) thermal Sunyaev-Zel'dovich (tSZ) observations by probing the intracluster medium (ICM) of the Planck-discovered galaxy cluster PSZ1 G045.85+57.71 at redshift z=0.61, using tSZ data obtained with the NIKA camera, which is a dual-band (150 and 260GHz) instrument operated at the IRAM 30-m telescope. We deproject jointly NIKA and Planck data to extract the electronic pressure distribution from the cluster core (R∼0.02R500) to its outskirts (R∼3R500) non-parametrically for the first time at intermediate redshift. The constraints on the resulting pressure profile allow us to reduce the relative uncertainty on the integrated Compton parameter by a factor of two compared to the Planck value. Combining the tSZ data and the deprojected electronic density profile from XMM-Newton allows us to undertake a hydrostatic mass analysis, for which we study the impact of a spherical model assumption on the total mass estimate. We also investigate the radial temperature and entropy distributions. These data indicate that PSZ1 G045.85+57.71 is a massive (M500∼5.5x1014M) cool-core cluster. This work is part of a pilot study aiming at optimizing the treatment of the NIKA2 tSZ large program dedicated to the follow-up of SZ-discovered clusters at intermediate and high redshifts. This study illustrates the potential of NIKA2 to put constraints on thethermodynamic properties and tSZ-scaling relations of these clusters, and demonstrates the excellent synergy between tSZ and X-ray observations of similar angular resolution.

Abstract Copyright: © ESO, 2017

Journal keyword(s): galaxies: clusters: intracluster medium - instrumentation: high angular resolution - cosmology: observations

Nomenclature: Table 4: [RAC2017] SGMNN (Nos SGM1-SGM11).

Status at CDS:  

Simbad objects: 15

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Number of rows : 15

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 [RAC2017] SGM2 IR 15 18 16.978 +29 27 14.60           ~ 1 0
2 [RAC2017] SGM6 IR 15 18 17.270 +29 28 33.72           ~ 1 0
3 [RAC2017] SGM11 IR 15 18 18.545 +29 27 57.47           ~ 1 0
4 [RAC2017] SGM7 IR 15 18 18.969 +29 26 20.75           ~ 1 0
5 PSZ1 G045.85+57.71 C?G 15 18 19.2 +29 27 24           ~ 11 0
6 FIRST J151819.5+292712 Rad 15 18 19.51 +29 27 12.8           ~ 2 0
7 [RAC2017] SGM10 IR 15 18 19.522 +29 26 44.27           ~ 1 0
8 [RAC2017] SGM3 IR 15 18 21.859 +29 28 30.33           ~ 1 0
9 [RAC2017] SGM4 IR 15 18 22.277 +29 26 49.87           ~ 1 0
10 [RAC2017] SGM1 IR 15 18 22.382 +29 29 03.42           ~ 1 0
11 NVSS J151822+292926 Rad 15 18 22.48 +29 29 17.6           ~ 1 0
12 [RAC2017] SGM8 IR 15 18 23.657 +29 27 36.72           ~ 1 0
13 [RAC2017] SGM5 IR 15 18 25.577 +29 28 46.96           ~ 1 0
14 [RAC2017] SGM9 IR 15 18 29.306 +29 27 03.83           ~ 1 0
15 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 396 0

    Equat.    Gal    SGal    Ecl

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2020.05.26-23:42:47

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