RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
PDF
PDF

Keywords

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
Astrophysics

How to Cite

Internal motions in H II regions. VI. S 140 and the associated CO cloud. (1978). Revista Mexicana De Astronomía Y Astrofísica, 4(1), 331-335. https://astronomia.unam.mx/journals/rmxaa/article/view/1979rmxaa...4..331p

Abstract

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.
...