Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ap%26ss..39..173g&link_type=abstract
Astrophysics and Space Science, vol. 39, Jan. 1976, p. 173-180. Research supported by the Science Research Council of England.
Astronomy and Astrophysics
Astrophysics
16
Astronomical Maps, Nebulae, Radiant Flux Density, Radio Spectra, Astronomical Spectroscopy, B Stars, Main Sequence Stars, O Stars, Wavelengths
Scientific paper
The radio continuum spectrum of the W80 nebular complex (NGC 7000 and IC 5070 nebulae, mainly) is established over a wide range of frequencies. The resultant spectrum shows a thermal shape; the spectral index established for the optically thin part of it is -0.04. Certain physical parameters of the complex (RMS densities, mass, emission measure, excitation parameter) are derived for adopted models. The possible exciting star is located. Limitations of the models involved and uncertainties of the results are also discussed.
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