O stars and the interstellar medium

Details O stars and the interstellar medium O stars and the interstellar medium

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85.1046l&link_type=abstract

Astronomical Journal, vol. 85, Aug. 1980, p. 1046-1052.

Astronomy and Astrophysics

Astronomy

29

Hydrogen Clouds, Interstellar Gas, O Stars, Radial Velocity, Spiral Galaxies, Star Distribution, Stellar Motions, Cosmic Dust, Emission Spectra, Galactic Structure, Gas Density, Hydrogen Ions, Nebulae, Southern Hemisphere, Stellar Luminosity, Stellar Spectrophotometry

Scientific paper

The galactic location of regions containing O stars in a low-density environment is discussed. It is shown that O stars can be used to define the galactic location and thickness of the gaseous spiral arms in the vicinity of the sun. The pattern thus established is similar to the outer regions of a typical Sb/Sc spiral galaxy. O stars may have migrated into low-density regions as a consequence of their peculiar velocities or they may have modified their original environment by blowing away the residual primordial interstellar cloud.

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