Instabilities in line-driven stellar winds. III - Wave propagation in the case of pure line absorption

Computer Science – Sound

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

45

Absorption Spectra, Radiative Transfer, Stellar Radiation, Stellar Winds, Wave Propagation, Acoustic Velocity, Continuous Spectra, Line Spectra, Stability

Scientific paper

The spatial and temporal evolution of small-amplitude velocity perturbations is examined in the idealized case of a stellar wind that is driven by pure line absorption of the star's continuum radiation. It is established that the instability in the supersonic region is of the advective type relative to the star, but of the absolute type relative to the wind itself. It is also shown that the inward propagation of information in such a wind is limited to the sound speed, in contrast to the theory of Abbott, which predicts inward propagation faster than sound. This apparent contradiction is resolved through an extensive discussion of the analytically soluble case of zero sound speed.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Instabilities in line-driven stellar winds. III - Wave propagation in the case of pure line absorption does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Instabilities in line-driven stellar winds. III - Wave propagation in the case of pure line absorption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instabilities in line-driven stellar winds. III - Wave propagation in the case of pure line absorption will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1735672

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.