Small-scale velocity fields and mean line profiles

Details Small-scale velocity fields and mean line profiles Small-scale velocity fields and mean line profiles

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....91..251d&link_type=abstract

Astronomy and Astrophysics, vol. 91, no. 1-2, Nov. 1980, p. 251-253.

Astronomy and Astrophysics

Astrophysics

3

Astrophysics, Line Shape, Radiative Transfer, Velocity Distribution, Correlation, Field Theory (Physics)

Scientific paper

The mean equation of transfer for a line formed in the presence of a small-scale velocity field is derived. Approximate expressions for effects arising from fluctuating quantities are illustrated by the case of short-period waves; correlations between fluctuations are taken into account. It is shown that mean line profiles are best generated by averaging the time variation of accurate individual profile sequences.

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