hal-00523032, version 1
Herschel-SPIRE spectroscopy of the DR21 molecular cloud core
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Astronomy and Astrophysics 518 (2010) L114
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 [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.
- 1:
- Science and Technology Facilities Council
- 2:
- Open University
- 3:
- CNRS : UMR8617 – INSU – Université Paris XI - Paris Sud
- 4:
- CNRS : UMR7158 – INSU – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
- 5:
- CNRS : UMR6110 – INSU – Université de Provence - Aix-Marseille I
- 6:
- CNRS : UMR5187 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III
- 7:
- CNRS : UMR6241 – Université de Nantes – École Nationale Supérieure des Mines - Nantes
- 8:
- CNRS : UMR5804 – INSU – Université Sciences et Technologies - Bordeaux I
- 9:
- CNRS : UMS2567 – INSU – Université Sciences et Technologies - Bordeaux I
- 10:
- Université Sciences et Technologies - Bordeaux I
- 11:
- CNRS : UMR5804 – INSU – Université Sciences et Technologies - Bordeaux I
- 12:
- Princeton University
- 13:
- Cardiff University
- 14:
- Chinese Academy of Sciences
- 15:
- Agroscope Reckenholz-Tänikon Research Station ART
- 16:
- NERC - Natural Environment Research Council
- 17:
- Science & Technologie Facilities Council
- 18:
- CNRS : UMR7599 – Université Pierre et Marie Curie [UPMC] - Paris VI – Université Paris VII - Paris Diderot
- 19:
- CEA : DSM/DAPNIA
- 20:
- University of Toronto
- 21:
- Aucune
- 22:
- Interplanetary Space Physics Institute
- 23:
- CEA – Université Paris VII - Paris Diderot
- 24:
- CEA : DSM/IRFU
- 25:
- INSU – Université de Provence - Aix-Marseille I – CNRS : UMR6110
- Domain : Sciences of the Universe/Astrophysics/Solar and Stellar Astrophysics
Physics/Astrophysics/Solar and Stellar Astrophysics - Comment : 5 pages – 6 figures
- Bibliographic ADS Code : 2010A&A...518L.114W
- hal-00523032, version 1
- http://hal.archives-ouvertes.fr/hal-00523032
- oai:hal.archives-ouvertes.fr:hal-00523032
- From:
- Submitted on: Monday, 4 October 2010 11:53:25
- Updated on: Thursday, 7 October 2010 10:53:09


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