EPJ Web of Conferences (Jan 2022)
Dust Emission in Galaxies at Millimeter Wavelengths: Cooling of star forming regions in NGC6946
- Ejlali G.,
- Adam R.,
- Ade P.,
- Ajeddig H.,
- André P.,
- Artis E.,
- Aussel H.,
- Beelen A.,
- Benoît A.,
- Berta S.,
- Bing L.,
- Bourrion O.,
- Calvo M.,
- Catalano A.,
- de Looze I.,
- De Petris M.,
- Désert F.-X.,
- Doyle S.,
- Driessen E.F. C.,
- Galametz M.,
- Galliano F.,
- Gomez A.,
- Goupy J.,
- Jones A.P.,
- Hughes A.,
- Katsioli S.,
- Kéruzoré F.,
- Kramer C.,
- Ladjelate B.,
- Lagache G.,
- Leclercq S.,
- Lestrade J.-F.,
- Macías-Pérez J.-F.,
- Madden S.C.,
- Maury A.,
- Mauskopf P.,
- Mayet F.,
- Monfardini A.,
- Muñoz-Echeverría M.,
- Nersesian A.,
- 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.,
- Smith M. W. S. L.,
- Tabatabaei F. S.,
- Tucker C.,
- Xilouris E.M.,
- Zylka R.
Affiliations
- Ejlali G.
- School of Astronomy, Institute for Research in Fundamental Sciences (IPM)
- 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
- Ajeddig H.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- 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
- 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 Looze I.
- Sterrenkundig Observatorium Universiteit Gent
- 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)
- Galametz M.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- Galliano F.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- Gomez A.
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz
- Goupy J.
- Institut Néel, CNRS, Université Grenoble Alpes
- Jones A.P.
- Institut d’Astrophysique Spatiale (IAS), CNRS, Université Paris Sud
- Hughes A.
- Université de Toulouse, UPS-OMP
- Katsioli S.
- National Observatory of Athens, Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing
- 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
- 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
- Madden S.C.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité
- 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
- Nersesian A.
- National Observatory of Athens, Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing
- 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, Sorbonne Université, 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)
- Smith M. W. S. L.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Tabatabaei F. S.
- School of Astronomy, Institute for Research in Fundamental Sciences (IPM)
- Tucker C.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Xilouris E.M.
- National Observatory of Athens, Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing
- Zylka R.
- Institut de RadioAstronomie Millimétrique (IRAM)
- DOI
- https://doi.org/10.1051/epjconf/202225700016
- Journal volume & issue
-
Vol. 257
p. 00016
Abstract
Interstellar dust plays an important role in the formation of molecular gas and the heating and cooling of the interstellar medium. The spatial distribution of the mm-wavelength dust emission from galaxies is largely unexplored. The NIKA2 Guaranteed Time Project IMEGIN (Interpreting the Millimeter Emission of Galaxies with IRAM and NIKA2) has recently mapped the mm emission in the grand design spiral galaxy NGC6946. By subtracting the contributions from the free-free, synchrotron, and CO line emission, we map the distribution of the pure dust emission at 1:15mm and 2mm. Separating the arm/interarm regions, we find a dominant 2mm emission from interarms indicating the significant role of the general interstellar radiation field in heating the cold dust. Finally, we present maps of the dust mass, temperature, and emissivity index using the Bayesian MCMC modeling of the spectral energy distribution in NGC6946.