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arxiv: 1911.03116 · v1 · pith:M7R5HC5Dnew · submitted 2019-11-08 · 🌌 astro-ph.CO

NIKA: a mm camera for Sunyaev-Zel'dovich science in clusters of galaxies

classification 🌌 astro-ph.CO
keywords clusterseffectgalaxiesnikacameraclusterdarkdovich
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Clusters of galaxies, the largest bound objects in the Universe, constitute a cosmological probe of choice, which is sensitive to both dark matter and dark energy. Within this framework, the Sunyaev-Zel'dovich (SZ) effect has opened a new window for the detection of clusters of galaxies and for the characterization of their physical properties such as mass, pressure and temperature. NIKA, a KID-based dual band camera installed at the IRAM 30-m telescope, was particularly well adapted in terms of frequency, angular resolution, field-of-view and sensitivity, for the mapping of the thermal and kinetic SZ effect in high-redshift clusters. In this paper, we present the NIKA cluster sample and a review of the main results obtained via the measurement of the SZ effect on those clusters: reconstruction of the cluster radial pressure profile, mass, temperature and velocity.

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