The thermal and non-thermal components of sixteen nebular complexes

Details The thermal and non-thermal components of sixteen nebular complexes The thermal and non-thermal components of sixteen nebular complexes

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..47..109g&link_type=abstract

Astrophysics and Space Science, vol. 47, Mar. 1977, p. 109-146. Research supported by the Science Research Council.

Astronomy and Astrophysics

Astrophysics

10

Fine Structure, Gray Gas, Interstellar Matter, Nebulae, Nonthermal Radiation, Radio Spectra, Astronomical Models, Electron Energy, Optical Thickness, Thermal Emission

Scientific paper

The nature of the fine structure of sixteen galactic nebular complexes is investigated by producing their radio spectra. The complexes are: W31, W33, W35, K39, W42, W40, W43, W48, W47, W49, K47, W51, W3, Carina, NGC 6334, and NGC 6357. Various physical parameters of the thermal components are derived by adopting a homogeneous, optically thin, spherical model. The variations of the physical parameters derived from the model as a function of electron temperature and distance are investigated. A discussion about the thermal and nonthermal spectra is included. Some simple statistics on the physical parameters of the thermal sources (diameter, density, mass) are also presented by employing a sample of 67 thermal components.

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