EPJ Web of Conferences (Jan 2024)
NIKA2 observations of starless cores in Taurus and Perseus
- Kramer C.,
- Adam R.,
- Ade P.,
- Ajeddig H.,
- André P.,
- Artis E.,
- Aussel H.,
- Beelen A.,
- Benoît A.,
- Berta S.,
- Bing L.,
- Bourrion O.,
- Calvo M.,
- Caselli P.,
- Catalano A.,
- De Petris M.,
- Désert F.-X.,
- Doyle S.,
- Driessen E.F.C.,
- Ejlali G.,
- Fuente A.,
- Gomez A.,
- Goupy J.,
- Hanser C.,
- Katsioli S.,
- Kéruzoré F.,
- Ladjelate B.,
- Lagache G.,
- Leclercq S.,
- Lestrade J.-F.,
- Macías-Pérez J. F.,
- Madden S.C.,
- Maury A.,
- Mauskopf P.,
- Mayet F.,
- Monfardini A.,
- Moyer-Anin A.,
- Muñoz-Echeverría M.,
- Navarro-Almaida D.,
- Perotto L.,
- Pisano G.,
- Ponthieu N.,
- Revéret V.,
- Rigby A.J.,
- Ritacco A.,
- Romero C.,
- Roussel H.,
- Ruppin F.,
- Schuster K.,
- Sievers A.,
- Tucker C.,
- Zylka R.
Affiliations
- Kramer C.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Adam R.
- Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange
- Ade P.
- School of Physics and Astronomy, Cardiff University
- Ajeddig H.
- Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
- André P.
- Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
- Artis E.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Aussel H.
- Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
- Beelen A.
- Aix Marseille Univ, CNRS, CNES, LAM
- Benoît A.
- Université Grenoble Alpes, CNRS, Institut Néel
- Berta S.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Bing L.
- Aix Marseille Univ, CNRS, CNES, LAM
- Bourrion O.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Calvo M.
- Université Grenoble Alpes, CNRS, Institut Néel
- Caselli P.
- Max Planck Institute for Extraterrestrial Physics
- Catalano A.
- Université 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
- Driessen E.F.C.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Ejlali G.
- Institute for Research in Fundamental Sciences (IPM)
- Fuente A.
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz
- Gomez A.
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz
- Goupy J.
- Université Grenoble Alpes, CNRS, Institut Néel
- Hanser C.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Katsioli S.
- National Observatory of Athens, IAASARS
- Kéruzoré F.
- High Energy Physics Division, Argonne National Laboratory
- 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 Univ., CNRS, Sorbonne Univ., UPMC
- Macías-Pérez J. F.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Madden S.C.
- Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
- Maury A.
- Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
- Mauskopf P.
- School of Physics and Astronomy, Cardiff University
- Mayet F.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Monfardini A.
- Université Grenoble Alpes, CNRS, Institut Néel
- Moyer-Anin A.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Muñoz-Echeverría M.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Navarro-Almaida D.
- Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
- Perotto L.
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Pisano G.
- Dipartimento di Fisica, Sapienza Università di Roma
- Ponthieu N.
- Univ. Grenoble Alpes, CNRS, IPAG
- Revéret V.
- Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
- Rigby A.J.
- School of Physics and Astronomy, University of Leeds
- Ritacco A.
- INAF-Osservatorio Astronomico di Cagliari
- Romero C.
- Department of Physics and Astronomy, University of Pennsylvania
- Roussel H.
- Institut d’Astrophysique de Paris, CNRS (UMR7095)
- Ruppin F.
- University of Lyon, UCB Lyon 1, CNRS/IN2P3, IP2I
- Schuster K.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Sievers A.
- Instituto de Radioastronomía Milimétrica (IRAM)
- Tucker C.
- School of Physics and Astronomy, Cardiff University
- Zylka R.
- Institut de RadioAstronomie Millimétrique (IRAM)
- DOI
- https://doi.org/10.1051/epjconf/202429300027
- Journal volume & issue
-
Vol. 293
p. 00027
Abstract
Dusty starless cores play an important role in regulating the initial phases of the formation of stars and planets. In their interiors, dust grains coagulate and ice mantles form, thereby changing the millimeter emissivities and hence the ability to cool. We mapped four regions with more than a dozen cores in the nearby Galactic filaments of Taurus and Perseus using the NIKA2 camera at the IRAM 30-meter telescope. Combining the 1mm to 2mm flux ratio maps with dust temperature maps from Herschel allowed to create maps of the dust emissivity index β1,2 at resolutions of 2430 and 5600 a.u. in Taurus and Perseus, respectively. Here, we study the variation with total column densities and environment. β1,2 values at the core centers (Av =12 – 19 mag) vary significantly between ~ 1.1 and 2.3. Several cores show a strong rise of β1,2 from the outskirts at ~ 4 mag to the peaks of optical extinctions, consistent with the predictions of grain models and the gradual build-up of ice mantles on coagulated grains in the dense interiors of starless cores.
