High-resolution SZ cartography of clusters of galaxies with NIKA at the IRAM 30-m telescope

Abstract : Arcmin resolution thermal Sunyaev-Zeldovich (tSZ) observations (e.g. SPT, ACT and Planck) only allowed detailed studies of the intra cluster medium morphology for low redshift clusters (z < 0.2). The development of precision cosmology with clusters requires high-angular resolution observations to extend the understanding of galaxy cluster towards high redshift. NIKA2 is a wide-field (6.5 arcmin field of view) dual-band camera, operated at 100 mK and containing ~ 3500 KID (Kinetic Inductance Detectors), designed to observe the millimeter sky at 150 and 260 GHz, with an angular resolution of 18 and 12 arcsec respectively. The NIKA2 camera has been installed on the IRAM 30-m telescope (Pico Veleta, Spain) in September 2015. The NIKA2 tSZ observation program will allow us to observe a large sample of clusters (50) at redshifts above 0.5. As a pathfinder for NIKA2, several clusters of galaxies have been observed at the IRAM 30-m telescope with the NIKA prototype to cover the various configurations and observation conditions expected for NIKA2.
Type de document :
Communication dans un congrès
22nd International Symposium on Particles, Strings and Cosmology (PASCOS 2016), Jul 2014, Quy Nhon, Vietnam. 〈https://indico.cern.ch/event/452998/〉
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http://hal.in2p3.fr/in2p3-01346962
Contributeur : Emmanuelle Vernay <>
Soumis le : mercredi 20 juillet 2016 - 09:37:42
Dernière modification le : mardi 24 avril 2018 - 16:08:03

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  • HAL Id : in2p3-01346962, version 1

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F. Mayet. High-resolution SZ cartography of clusters of galaxies with NIKA at the IRAM 30-m telescope . 22nd International Symposium on Particles, Strings and Cosmology (PASCOS 2016), Jul 2014, Quy Nhon, Vietnam. 〈https://indico.cern.ch/event/452998/〉. 〈in2p3-01346962〉

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