The circumstellar envelopes of Be stars: viscous disc dynamics

Details The circumstellar envelopes of Be stars: viscous disc dynamics The circumstellar envelopes of Be stars: viscous disc dynamics

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mnras.386.1922j&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 386, Issue 4, pp. 1922-1930.

Astronomy and Astrophysics

Astronomy

13

Hydrodynamics, Radiative Transfer, Stars: Emission-Line, Be, Stars: Individual: Γ Cas

Scientific paper

We have constructed models of axisymmetric, circumstellar envelopes for Be star discs by successfully combining two numerical codes: a non-local thermodynamic equilibrium (non-LTE) radiative transfer code which calculates the level populations and disc temperature distribution self-consistently, and a hydrodynamical code. The output of one code is used as input to the other code, and hence evolving density and thermal structures may be examined. The temperatures, disc density and velocity distribution are used to investigate the outflowing viscous disc model for Be stars. We find that these simulations place constraints on the power-law density decrease in the disc with increasing distance from the star. We find that the power-law index for the line-forming region of the disc lies between 3 and 3.5 with a small dispersion.

Affiliated with

Also associated with

No associations

Rating

The circumstellar envelopes of Be stars: viscous disc dynamics 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 The circumstellar envelopes of Be stars: viscous disc dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The circumstellar envelopes of Be stars: viscous disc dynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1572774