Astronomy and Astrophysics – Astronomy
Scientific paper
May 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974mmsai..45..171w&link_type=abstract
(Ministero della Pubblica Istruzione, CNR, and Universita di Trieste, European Regional Meeting in Astronomy, 2nd, Trieste, Ital
Astronomy and Astrophysics
Astronomy
Carbon, Interstellar Matter, Line Spectra, Nebulae, Astronomical Models, Electron Density (Concentration), Emission Spectra, Frequency Distribution, Neutral Particles, Temperature Effects
Scientific paper
The paper describes attempts to fit the frequency dependence of the carbon line strength from various regions for which a dilution correction to each observation was necessary because a simple point source model did not give a good fit for high frequency measurements. In one model, a considerable contribution to line strength comes from stimulation of the background continuum, giving a very steep dependence on frequency which is not observed. Fits may be obtained, however, for models in which the main contribution to the line strength comes from spontaneous emission.
Hoang-Binh D.
Walmsley Malcolm
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