EPJ Web of Conferences (Jan 2022)
Probing the role of magnetic fields in star-forming filaments: NIKA2-Pol commissioning results toward OMC-1
- Ajeddig H.,
- Adam R.,
- Ade P.,
- André P.,
- Artis E.,
- Aussel H.,
- Beelen A.,
- Benoît A.,
- Berta S.,
- Bing L.,
- Bourrion O.,
- Calvo M.,
- Catalano A.,
- 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.,
- Maury A.,
- Mauskopf P.,
- Mayet F.,
- Monfardini A.,
- Muñoz-Echeverría M.,
- Perotto L.,
- Pisano G.,
- Ponthieu N.,
- Revéret V.,
- Rigby A.J.,
- Ritacco A.,
- Romero C.,
- Roussel H.,
- Ruppin F.,
- Schuster K.,
- Shu S.,
- Sievers A.,
- Tucker C.,
- Zylka R.,
- Shimajiri Y.
Affiliations
- Ajeddig H.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- Adam R.
- LLR (Laboratoire Leprince-Ringuet), CNRS, École Polytechnique, Institut Polytechnique de Paris
- Ade P.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- André P.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- Artis E.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Aussel H.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- Beelen A.
- Institut d’Astrophysique Spatiale (IAS), CNRS, Université Paris Sud
- Benoît A.
- Institut Néel, CNRS, Université Grenoble Alpes
- Berta S.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Bing L.
- Aix Marseille Univ, CNRS, CNES, LAM (Laboratoire d’Astrophysique de Marseille)
- Bourrion O.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Calvo M.
- Institut Néel, CNRS, Université Grenoble Alpes
- Catalano A.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- De Petris M.
- Dipartimento di Fisica, Sapienza Università di Roma
- Désert F.-X.
- Univ. Grenoble Alpes, CNRS, IPAG
- Doyle S.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Driessen E. F. C.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Gomez A.
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz
- Goupy J.
- Institut Néel, CNRS, Université Grenoble Alpes
- Kéruzoré F.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Kramer C.
- Instituto de Radioastronomía Milimétrica (IRAM)
- Ladjelate B.
- Instituto de Radioastronomía Milimétrica (IRAM)
- Lagache G.
- Aix Marseille Univ, CNRS, CNES, LAM (Laboratoire d’Astrophysique de Marseille)
- Leclercq S.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Lestrade J.-F.
- LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Université, UPMC
- Macías-Pérez J.-F.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Maury A.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- Mauskopf P.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Mayet F.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Monfardini A.
- Institut Néel, CNRS, Université Grenoble Alpes
- Muñoz-Echeverría M.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Perotto L.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Pisano G.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Ponthieu N.
- Univ. Grenoble Alpes, CNRS, IPAG
- Revéret V.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- Rigby A.J.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Ritacco A.
- Institut d’Astrophysique Spatiale (IAS), CNRS, Université Paris Sud
- Romero C.
- Department of Physics and Astronomy, University of Pennsylvania
- Roussel H.
- Institut d’Astrophysique de Paris, CNRS (UMR7095)
- Ruppin F.
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology
- Schuster K.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Shu S.
- Caltech
- Sievers A.
- Instituto de Radioastronomía Milimétrica (IRAM)
- Tucker C.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Zylka R.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Shimajiri Y.
- National Astronomical Observatory of Japan, National Institutes of Natural Sciences
- DOI
- https://doi.org/10.1051/epjconf/202225700002
- Journal volume & issue
-
Vol. 257
p. 00002
Abstract
Dust polarization observations are a powerful, practical tool to probe the geometry (and to some extent, the strength) of magnetic fields in starforming regions. In particular, Planck polarization data have revealed the importance of magnetic fields on large scales in molecular clouds. However, due to insufficient resolution, Planck observations are unable to constrain the B-field geometry on prestellar and protostellar scales. The high angular resolution of 11.7 arcsec provided by NIKA2-Pol 1.15 mm polarimetric imaging, corresponding to 0.02 pc at the distance of the Orion molecular cloud (OMC), makes it possible to advance our understanding of the B-field morphology in star-forming filaments and dense cores (IRAM 30m large program B-FUN). The commissioning of the NIKA2-Pol instrument has led to several challenging issues, in particular, the instrumental polarization or intensity-to-polarization “leakage” effect. In the present paper, we illustrate how this effect can be corrected for, leading to reliable exploitable data in a structured, extended source such as OMC-1. We present a statistical comparison between NIKA2-Pol and SCUBA2-Pol2 results in the OMC-1 region. We also present tentative evidence of local pinching of the B-field lines near Orion-KL, in the form of a new small-scale hourglass pattern, in addition to the larger-scale hourglass already seen by other instruments such as Pol2.