The Arizona Radio Observatory CO Mapping Survey of Galactic Molecular Clouds. II. The W3 Region in CO J = 2-1, 13CO J = 2-1, and CO J = 3-2 Emission

Details The Arizona Radio Observatory CO Mapping Survey of Galactic Molecular Clouds. II. The W3 Region in CO J = 2-1, 13CO J = 2-1, and CO J = 3-2 Emission The Arizona Radio Observatory CO Mapping Survey of Galactic Molecular Clouds. II. The W3 Region in CO J = 2-1, 13CO J = 2-1, and CO J = 3-2 Emission

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011apjs..196...18b&link_type=abstract

The Astrophysical Journal Supplement, Volume 196, Issue 2, article id. 18 (2011).

Astronomy and Astrophysics

Astronomy

H Ii Regions, Ism: Clouds, Ism: Individual Objects: W3, Ism: Kinematics And Dynamics, Ism: Molecules

Scientific paper

We present fully sampled 38'' resolution maps of the CO and 13CO J = 2-1 lines in the molecular clouds toward the H II region complex W3. The maps cover a 2fdg0 × 1fdg67 section of the galactic plane and span -70 to -20 km s-1 (LSR) in velocity with a resolution of ~1.3 km s-1. The velocity range of the images includes all the gas in the Perseus spiral arm. We also present maps of CO J = 3-2 emission for a 0fdg5 × 0fdg33 area containing the H II regions W3 Main and W3(OH). The J = 3-2 maps have velocity resolution of 0.87 km s-1 and 24'' angular resolution. Color figures display the peak line brightness temperature, the velocity-integrated intensity, and velocity channel maps for all three lines, and also the (CO/13CO) J = 2-1 line intensity ratios as a function of velocity. The line intensity image cubes are made available in standard FITS format as electronically readable files. We compare our molecular line maps with the 1.1 mm continuum image from the BOLOCAM Galactic Plane Survey (BGPS). From our 13CO image cube, we derive kinematic information for the 65 BGPS sources in the mapped field, in the form of Gaussian component fits.

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