The NIKA2 polarization channel at 260 GHz (1.15 mm) has been proposed primarily to observe galactic star-forming regions and probe the critical scales between 0.01-0.05 pc at which magnetic field lines may channel the matter of interstellar filaments into growing dense cores. The NIKA2 polarime-ter consists of a room temperature continuously rotating multi-mesh HWP and a cold polarizer that separates the two orthogonal polarizations onto two 260 GHz KIDs arrays. We describe in this paper the preliminary results obtained during the most recent commissioning campaign performed in December 2018. We concentrate here on the analysis of the extended sources, while the observation of compact sources is presented in a companion paper [12]. We present preliminary NIKA2 polarization maps of the Crab nebula. We find that the integrated polarization intensity flux measured by NIKA2 is consistent with expectations. In terms of polarization angle, we are still limited by systematic uncertainties that will be further investigated in the forthcoming commissioning campaigns.
Observing with NIKA2Pol from the IRAM 30m telescope : Early results on the commissioning phase / Ritacco, A.; Adam, R.; Ade, P.; Ajeddig, H.; 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.; Shimajiri, Y.; Shu, S.; Sievers, A.; Tucker, C.; Zylka, R.. - 228:(2020), p. 00022. (Intervento presentato al convegno mm Universe @ NIKA2 - Observing the mm Universe with the NIKA2 Camera tenutosi a Grenoble, France) [10.1051/epjconf/202022800022].
Observing with NIKA2Pol from the IRAM 30m telescope : Early results on the commissioning phase
De Petris, M.;Pisano, G.;
2020
Abstract
The NIKA2 polarization channel at 260 GHz (1.15 mm) has been proposed primarily to observe galactic star-forming regions and probe the critical scales between 0.01-0.05 pc at which magnetic field lines may channel the matter of interstellar filaments into growing dense cores. The NIKA2 polarime-ter consists of a room temperature continuously rotating multi-mesh HWP and a cold polarizer that separates the two orthogonal polarizations onto two 260 GHz KIDs arrays. We describe in this paper the preliminary results obtained during the most recent commissioning campaign performed in December 2018. We concentrate here on the analysis of the extended sources, while the observation of compact sources is presented in a companion paper [12]. We present preliminary NIKA2 polarization maps of the Crab nebula. We find that the integrated polarization intensity flux measured by NIKA2 is consistent with expectations. In terms of polarization angle, we are still limited by systematic uncertainties that will be further investigated in the forthcoming commissioning campaigns.| File | Dimensione | Formato | |
|---|---|---|---|
|
Ritacco_Observing with NIKA2Po_2020.pdf
accesso aperto
Note: https://www.epj-conferences.org/articles/epjconf/abs/2020/04/epjconf_mmuniverse2019_00022/epjconf_mmuniverse2019_00022.html
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Creative commons
Dimensione
2.08 MB
Formato
Adobe PDF
|
2.08 MB | Adobe PDF |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
