Internal motions in H II regions. VI - S 140 and the associated CO cloud

Details Internal motions in H II regions. VI - S 140 and the associated CO cloud Internal motions in H II regions. VI - S 140 and the associated CO cloud

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979rmxaa...4..331p&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, vol. 4, Aug. 1979, p. 331-335.

Astronomy and Astrophysics

Astronomy

1

Carbon Monoxide, Cloud Cover, H Ii Regions, Interstellar Gas, Radial Velocity, Cosmic Dust, Fabry-Perot Interferometers, Hydrogen Ions, Infrared Spectra, Red Shift, Star Clusters, Stellar Spectrophotometry, Ubv Spectra

Scientific paper

Radial velocities of 283 points obtained by Fabry-Perot interferometry of H(alpha) on S 140 and the contiguous dark CO cloud are discussed. The velocities of the dark and emission regions are comparable and yield -22 km/s as an average. The bright rim is redshifted with respect to its surroundings by 2 km/s. UBV photometry discloses a new star cluster of which the brightest member is the source of excitation of S 140. It is suggested that the H(alpha) emission of the dark region is that of S 140 scattered by the dust of the dark cloud.

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