Molecular clouds in Cygnus. I. (Dobashi+ 1994)

Details Molecular clouds in Cygnus. I. (Dobashi+ 1994) Molecular clouds in Cygnus. I. (Dobashi+ 1994)

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ycat..20950419d&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/95/419. Originally published in: 1994ApJS...95..419D

Astronomy and Astrophysics

Astronomy

Interstellar Medium, Co, Radio Sources

Scientific paper

A large-scale 13CO(J=1-0) survey was performed with a 2.7' angular resolution toward the Cygnus region, using the two 4-m millimeter telescopes at Nagoya University. An area of 432deg2 was covered with an 8' grid spacing, and 24,300 positions were observed. Significant 13CO emission (>1.2K.km/s=3σ) is detected at 2191 positions, corresponding to a detection rate of 9%. On the basis of the 13CO data, 159 distinct clouds are identified. Physical properties of these clouds such as molecular column densities, sizes, and masses are derived for the individual clouds. Astronomical objects associated with the molecular clouds were searched for in the literature. Seven H II regions, three SNRs, 45 T Tauri-type stars, 18 molecular outflows, and 215 IRAS point sources selected as candidates for protostars are likely to be associated with the molecular clouds. This paper presents the observational technique used for this survey and a complete list of the detected molecular clouds in Cygnus. (2 data files).

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