Mass-loss rate and clumping in LBV stars : the impact of time-dependent effects

Details Mass-loss rate and clumping in LBV stars : the impact of time-dependent effects Mass-loss rate and clumping in LBV stars : the impact of time-dependent effects

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cihw.conf...59g&link_type=abstract

Clumping in hot-star winds : proceedings of an international workshop held in Potsdam, Germany, 18. - 22. June 2007. Hamann, Wol

Computer Science

1

Scientific paper

This paper outlines a newly-developed method to include the effects of time variability in the radiative transfer code CMFGEN. It is shown that the flow timescale is often large compared to the variability timescale of LBVs. Thus, time-dependent effects significantly change the velocity law and density structure of the wind, affecting the derivation of the mass-loss rate, volume filling factor, wind terminal velocity, and luminosity. The results of this work are directly applicable to all active LBVs in the Galaxy and in the LMC, such as AG Car, HR Car, S Dor and R 127, and could result in a revision of stellar and wind parameters. The massloss rate evolution of AG Car during the last 20 years is presented, highlighting the need for time-dependent models to correctly interpret the evolution of LBVs.

Affiliated with

Also associated with

No associations

Rating

Mass-loss rate and clumping in LBV stars : the impact of time-dependent effects 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 Mass-loss rate and clumping in LBV stars : the impact of time-dependent effects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass-loss rate and clumping in LBV stars : the impact of time-dependent effects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1340468