NIKA2: a millimeter camera for cluster cosmology - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Papers Year : 2017

NIKA2: a millimeter camera for cluster cosmology

P. Ade
  • Function : Author
H. Aussel
A. Beelen
M. Calvo
  • Function : Author
M. de Petris
  • Function : Author
S. Doyle
  • Function : Author
L. Perotto
G. Pisano
  • Function : Author
H. Roussel
  • Function : Author
  • PersonId : 975463
C. Tucker
  • Function : Author

Abstract

Galaxy clusters constitute a major cosmological probe. However, Planck 2015 results have shown a weak tension between CMB-derived and cluster-derived cosmological parameters. This tension might be due to poor knowledge of the cluster mass and observable relationship. As for now, arcmin resolution Sunyaev-Zeldovich (SZ) observations (e.g. SPT, ACT and Planck) only allowed detailed studies of the intra cluster medium for low redshift clusters (z < 0:2). For high redshift clusters ( z > 0:5) high resolution and high sensitivity SZ observations are needed. With both a wide field of view (6.5 arcmin) and a high angular resolution (17.7 and 11.2 arcsec at 150 and 260 GHz), the NIKA2 camera installed at the IRAM 30-m telescope (Pico Veleta, Spain) is particularly well adapted for these observations. The NIKA2 SZ observation program will map a large sample of clusters (50) at redshifts between 0.5 and 0.9. As a pilot study for NIKA2, several clusters of galaxies have been observed with the pathfinder, NIKA, at the IRAM 30-m telescope to cover the various configurations and observation conditions expected for NIKA2.
Fichier principal
Vignette du fichier
1711.07088.pdf (107.8 Ko) Télécharger le fichier
Origin Files produced by the author(s)
Loading...

Dates and versions

in2p3-01559502 , version 1 (09-05-2018)

Identifiers

Cite

J.F. Macias-Perez, R. Adam, P. Ade, P. André, M. Arnaud, et al.. NIKA2: a millimeter camera for cluster cosmology. European Physical Society Conference on High Energy Physics (EPS-HEP2017), Jul 2017, Venice, Italy. pp.042. ⟨in2p3-01559502⟩
0 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More