Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...222..220d&link_type=abstract
Astrophysical Journal, Part 1, vol. 222, May 15, 1978, p. 220-225. Research supported by the Research Corp.
Astronomy and Astrophysics
Astrophysics
10
Convolution Integrals, Line Shape, Line Spectra, Stellar Motions, Stellar Rotation, Stellar Spectra, Asymmetry, Doppler Effect, Stellar Atmospheres, Stellar Mass, Stellar Winds
Scientific paper
A convolving function for approximating the combined effects of stellar rotation and radial motion without a velocity gradient on spectral line shapes is developed. It is shown that the broadening function which is convolved with an intrinsic profile to write the observed profile is not simply related to the functions for pure rotation or pure radial motion. Thus if the line profile is asymmetric, the effects of rotation cannot be estimated by a convolution; mass-loss rates calculated by that method need to be revised.
Duval Paul
Karp Alan H.
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