We present here the polarization system of the NIKA camera and give a summary of the main results obtained and performed studies on Orion and the Crab nebula. The polarization system was equipped with a room temperature continuously rotating multi-mesh half wave plate and a grid polarizer facing the NIKA cryostat window. NIKA even though less sensitive than NIKA2 had polarization capability in both 1 and 2 millimiter bands. NIKA polarization observations demonstrated the ability of such a technology in detecting the polarization of different targets, compact and extended sources like the Crab nebula and Orion Molecular Cloud region OMC-1. These measurements together with the developed techniques to deal with systematics, opened the way to the current observations of NIKA2 in polarization that will provide important advances in the studies of galactic and extra-galactic emission and magnetic fields.
The NIKA polarimeter on science targets: Crab nebula observations at 150 GHz and dual-band polarization images of Orion Molecular Cloud OMC-1 / Ritacco, A.; Adam, R.; Ade, P.; André, P.; Andrianasolo, A.; Aussel, H.; Beelen, A.; Benoît, A.; Bideaud, A.; Bourrion, O.; Calvo, M.; Catalano, A.; Comis, B.; De Petris, M.; Désert, F. -X.; Doyle, S.; Driessen, E. F. C.; Gomez, A.; Goupy, J.; Kéruzoré, F.; Kramer, C.; Ladjelate, B.; Lagache, G.; Leclercq, S.; Lestrade, J. -F.; Macías-Pérez, J. F.; Mauskopf, P.; Maury, A.; Mayet, F.; Monfardini, A.; Perotto, L.; Pisano, G.; Ponthieu, N.; Revéret, V.; Romero, C.; Roussel, H.; Ruppin, F.; Schuster, K.; Shu, S.; Sievers, A.; Tucker, C.; Zylka, R.. - 228:(2020), p. 00021. (Intervento presentato al convegno mm Universe @ NIKA2 - Observing the mm Universe with the NIKA2 Camera tenutosi a Grenoble, France) [10.1051/epjconf/202022800021].
The NIKA polarimeter on science targets: Crab nebula observations at 150 GHz and dual-band polarization images of Orion Molecular Cloud OMC-1
De Petris, M.;Pisano, G.;
2020
Abstract
We present here the polarization system of the NIKA camera and give a summary of the main results obtained and performed studies on Orion and the Crab nebula. The polarization system was equipped with a room temperature continuously rotating multi-mesh half wave plate and a grid polarizer facing the NIKA cryostat window. NIKA even though less sensitive than NIKA2 had polarization capability in both 1 and 2 millimiter bands. NIKA polarization observations demonstrated the ability of such a technology in detecting the polarization of different targets, compact and extended sources like the Crab nebula and Orion Molecular Cloud region OMC-1. These measurements together with the developed techniques to deal with systematics, opened the way to the current observations of NIKA2 in polarization that will provide important advances in the studies of galactic and extra-galactic emission and magnetic fields.| File | Dimensione | Formato | |
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Ritacco_The NIKA polarimeter_2020.pdf
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Note: https://www.epj-conferences.org/articles/epjconf/abs/2020/04/epjconf_mmuniverse2019_00021/epjconf_mmuniverse2019_00021.html
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