Radio recombination lines in MWC 349

Details Radio recombination lines in MWC 349 Radio recombination lines in MWC 349

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....93...48a&link_type=abstract

Astronomy and Astrophysics, vol. 93, no. 1-2, Jan. 1981, p. 48-52.

Astronomy and Astrophysics

Astrophysics

46

H Alpha Line, Radio Spectra, Radio Stars, Stellar Spectra, Emission Spectra, Stellar Winds

Scientific paper

The H76(alpha) and the H66(alpha) recombination lines in MWC 349 have line widths of 50 km/s and line to continuum ratios of 0.03 and 0.09, respectively. Previous radio continuum measurement discrepancies are attributed to a nearby weak extended confusing source, so that there is no evidence of variability at cm wavelengths. The radio line and continuum data can be interpreted self-consistently in terms of a radially symmetric constant velocity wind with the corresponding mass loss rate of 0.00001 solar mass/yr. Possible inconsistencies in reconciling this theory with optical and IR data can be avoided if the wind is fed from an accretion disk.

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