Herschel-SPIRE spectroscopy of the DR21 molecular cloud core
WHITE, Glenn J.
STFC Rutherford Appleton Laboratory [RAL]
Department of Physics and Astronomy [Milton Keynes]
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STFC Rutherford Appleton Laboratory [RAL]
Department of Physics and Astronomy [Milton Keynes]
WHITE, Glenn J.
STFC Rutherford Appleton Laboratory [RAL]
Department of Physics and Astronomy [Milton Keynes]
STFC Rutherford Appleton Laboratory [RAL]
Department of Physics and Astronomy [Milton Keynes]
BONTEMPS, Sylvain
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Observatoire aquitain des sciences de l'univers [OASU]
Université Sciences et Technologies - Bordeaux 1 [UB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Observatoire aquitain des sciences de l'univers [OASU]
Université Sciences et Technologies - Bordeaux 1 [UB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
MADDEN, S.
Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
MOTTE, F.
Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU]
Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU]
ZAVAGNO, Annie
Laboratoire d'Astrophysique de Marseille [LAM]
Observatoire Astronomique de Marseille Provence [OAMP]
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Laboratoire d'Astrophysique de Marseille [LAM]
Observatoire Astronomique de Marseille Provence [OAMP]
Language
en
Article de revue
This item was published in
Astronomy and Astrophysics - A&A. 2010, vol. 518, p. L114
EDP Sciences
English Abstract
We present far-infrared spectra and maps of the DR21 molecular cloud core between 196 and 671 microns, using the Herschel-SPIRE spectrometer. Nineteen molecular lines originating from CO, 13CO, HCO+ and H2O, plus lines of ...Read more >
We present far-infrared spectra and maps of the DR21 molecular cloud core between 196 and 671 microns, using the Herschel-SPIRE spectrometer. Nineteen molecular lines originating from CO, 13CO, HCO+ and H2O, plus lines of [N II] and [CI] were recorded, including several transitions not previously detected. The CO lines are excited in warm gas with Tkin ~ 125 K and nH2 ~ 7 x 10^4 cm-3, CO column density N(CO) ~ 3.5 x 10^18 cm^-2 and a filling factor of ~ 12%, and appear to trace gas associated with an outflow. The rotational temperature analysis incorporating observations from ground-based telescopes reveals an additional lower excitation CO compoment which has a temperature ~ 78 K and N(CO) ~ 4.5 x 10^21 cm^-2. Astronomy & Astrophysics HERSCHEL special Issue, in press.Read less <
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