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    First detection of polarization of the submillimetre diffuse galactic dust emission by Archeops

    Benoit, A. and Ade, P.A.R. and Amblard, A. and Ansari, R. and Aubourg, É. and Bargot, S. and Bartlett, J.G. and Bernard, J.-P. and Bhatia, R. and Blanchard, A. and Bock, J.J. and Boscaleri, A. and Bouchet, F.R. and Bourrachot, A. and Camus, P. and Couchot, F. and De Bernardis, P. and Delabrouille, J. and Desert, F.-X. and Dore, O. and Douspis, M. and Dumoulin, L. and Dupac, X. and Filliatre, P. and Fosalba, P. and Ganga, K. and Gannaway, F. and Gautier, B. and Giard, M. and Giraud-Héraud, Y. and Gispert, R. and Guglielmi, L. and Hamilton, J.-Ch. and Hanany, S. and Henrot-Versille, S. and Kaplan, J. and Lagache, G. and Lamarre, J.-M. and Lange, A.E. and Macias-Perez, J.F. and Madet, K. and Maffei, B. and Magneville, Ch. and Marrone, D.P. and Masi, S. and Mayet, F. and Murphy, J.Anthony and Naraghi, F. and Nati, F. and Patanchon, G. and Perrin, G. and Piat, M. and Ponthieu, N. and Prunet, S. and Puget, J.-L. and Renault, C. and Rosset, C. and Santos, D. and Starobinsky, Alexei A. and Strukov, I. and Sudiwala, R. and Teyssier, R. and Tristram, M. and Tucker, C. and Vanel, J.-C. and Vibert, D. and Wakui, E. and Yvon, D. (2004) First detection of polarization of the submillimetre diffuse galactic dust emission by Archeops. Astronomy & Astrophysics, 424 (2). pp. 571-582. ISSN 0004-6361

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    We present the first determination of the Galactic polarized emission at 353 GHz by Archeops. The data were taken during the Arctic night of February 7, 2002 after the balloon-borne instrument was launched by CNES from the Swedish Esrange base near Kiruna. In addition to the 143 GHz and 217 GHz frequency bands dedicated to CMB studies, Archeops had one 545 GHz and six 353 GHz bolometers mounted in three polarization–sensitive pairs that were used for Galactic foreground studies. We present maps of the Stokes parameters over 17% of the sky and with a 13 arcmin resolution at 353 GHz (). They show a significant Galactic large scale polarized emission coherent on the longitude ranges and deg. with a degree of polarization at the level of 4–5%, in agreement with expectations from starlight polarization measurements. Some regions in the Galactic plane (Gem OB1, Cassiopeia) show an even stronger degree of polarization in the range 10–20%. These findings provide strong evidence for a powerful grain alignment mechanism throughout the interstellar medium and a coherent magnetic field coplanar to the Galactic plane. This magnetic field pervades even some dense clouds. Extrapolated to high Galactic latitude, these results indicate that interstellar dust polarized emission is the major foreground for PLANCK–HFI CMB polarization measurements.

    Item Type: Article
    Additional Information: Cite as: First detection of polarization of the submillimetre diffuse galactic dust emission by Archeops A. Benoît, P. Ade, A. Amblard, R. Ansari, É. Aubourg, S. Bargot, J. G. Bartlett, J.–Ph. Bernard, R. S. Bhatia, A. Blanchard, J. J. Bock, A. Boscaleri, F. R. Bouchet, A. Bourrachot, P. Camus, F. Couchot, P. de Bernardis, J. Delabrouille, F.–X. Désert, O. Doré, M. Douspis, L. Dumoulin, X. Dupac, P. Filliatre, P. Fosalba, K. Ganga, F. Gannaway, B. Gautier, M. Giard, Y. Giraud–Héraud, R. Gispert, L. Guglielmi, J.–Ch. Hamilton, S. Hanany, S. Henrot–Versillé, J. Kaplan, G. Lagache, J.–M. Lamarre, A. E. Lange, J. F. Macías–Pérez, K. Madet, B. Maffei, Ch. Magneville, D. P. Marrone, S. Masi, F. Mayet, A. Murphy, F. Naraghi, F. Nati, G. Patanchon, G. Perrin, M. Piat, N. Ponthieu, S. Prunet, J.–L. Puget, C. Renault, C. Rosset, D. Santos, A. Starobinsky, I. Strukov, R. V. Sudiwala, R. Teyssier, M. Tristram, C. Tucker, J.–C. Vanel, D. Vibert, E. Wakui and D. Yvon A&A, 424 2 (2004) 571-582 DOI:
    Keywords: cosmology: cosmic microwave background; cosmology: observations; ISM: dust extinction; polarization; submillimeter;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 14015
    Identification Number:
    Depositing User: Dr. Anthony Murphy
    Date Deposited: 15 Feb 2021 16:27
    Journal or Publication Title: Astronomy & Astrophysics
    Publisher: EDP Sciences
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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