Massachusetts-Stony Brook Galactic plane CO survey. I - (b,V) maps of the first Galactic quadrant

Details Massachusetts-Stony Brook Galactic plane CO survey. I - (b,V) maps of the first Galactic quadrant Massachusetts-Stony Brook Galactic plane CO survey. I - (b,V) maps of the first Galactic quadrant

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apjs...60....1s&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 60, Jan. 1986, p. 1-296.

Astronomy and Astrophysics

Astrophysics

139

Carbon Monoxide, Interstellar Gas, Milky Way Galaxy, Molecular Clouds, Astronomical Coordinates, Astronomical Maps, Galactic Structure, Molecular Spectra, Velocity Distribution

Scientific paper

The FCRAO 14 m telescope has been used for a new high-resolution, CO J = 1-0 survey of the first Galactic quadrant. The survey consists of 40,551 spectra obtained in the longitude range l = 8° - 90° from b = -1°.05 to b = +1°.05. Data were obtained on a 3arcmin grid between l = 18° and l = 55° and on a 6arcmin grid outside this longitude range. Spectral coverage is 300 km s-1 at 1 km s-1 resolution, sufficient to include all Galactic emission out to R = 2 R_sun;. The reduced data are presented in the form of latitude-velocity (b, V) contour maps at each longitude. The longitude and latitude coverage of the maps is sufficient to include more than 90% of the emission in the first Galactic quadrant (excluding the Galactic center, R < 0.15 R_sun;). The small grid spacing enables detection of all clouds larger than ≡15 pc diameter in the R = 0.4 - 0.8 R_sun; molecular cloud ring.

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