2010A&A...518L.114W


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET02:59:14

2010A&A...518L.114W - Astronomy and Astrophysics, volume 518, L114-114 (2010/7-2)

Herschel-SPIRE spectroscopy of the DR 21 molecular cloud core.

WHITE G.J., ABERGEL A., SPENCER L., SCHNEIDER N., NAYLOR D.A., ANDERSON L.D., JOBLIN C., ADE P., ANDRE P., ARAB H., BALUTEAU J.-P., BERNARD J.-P., BLAGRAVE K., BONTEMPS S., BOULANGER F., COHEN M., COMPIEGNE M., COX P., DARTOIS E., DAVIS G., EMERY R., FULTON T., GOM B., GRIFFIN M., GRY C., HABART E., HUANG M., JONES S., KIRK J.M., LAGACHE G., LEEKS S., LIM T., MADDEN S., MAKIWA G., MARTIN P., MIVILLE-DESCHENES M.-A., MOLINARI S., MOSELEY H., MOTTE F., OKUMURA K., PINHEIRO GONCALVES D., POLEHAMPTON E., RODET T., RODON J.A., RUSSEIL D., SARACENO P., SIDHER S., SWINYARD B.M., WARD-THOMPSON D. and ZAVAGNO A.

Abstract (from CDS):

We present far-infrared spectra and maps of the DR21 molecular cloud core between 196 and 671µm, 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∼7x104cm–3, CO column density N(CO) ∼3.5x1018cm–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 ∼78K and N(CO) ∼4.5x1021cm–2.

Abstract Copyright:

Journal keyword(s): ISM: lines and bands - infrared: ISM - ISM: molecules

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Cyg X Cld 20 28 41 +41 10.2           ~ 643 1
2 [CGC93] FIR 1 IR 20 39 00.37 +42 24 36.6           ~ 22 0
3 [MBS2007c] CygX-N44 Rad 20 39 01.01 +42 22 50.2           ~ 363 0
4 GRS G081.70 +00.50 SFR 20 39 01.6 +42 19 38           O4.5 962 0

    Equat.    Gal    SGal    Ecl

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2021.03.02-02:59:14

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