Revised mass-loss rates for O stars from the Pv resonance line

Details Revised mass-loss rates for O stars from the Pv resonance line Revised mass-loss rates for O stars from the Pv resonance line

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cihw.conf...23f&link_type=abstract

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

Physics

1

Scientific paper

The P v λλ1118, 1128 resonance doublet is an extraordinarily useful diagnostic of O-star winds, because it bypasses the traditional problems associated with determining mass-loss rates from UV resonance lines. We discuss critically the assumptions and uncertainties involved with using P v to diagnose mass-loss rates, and conclude that the large discrepancies between massloss rates determined from P v and the rates determined from “density squared” emission processes pose a significant challenge to the “standard model” of hot-star winds. The disparate measurements can be reconciled if the winds of O-type stars are strongly clumped on small spatial scales, which in turn implies that mass-loss rates based on Hα or radio emission are too large by up to an order of magnitude.

Affiliated with

Also associated with

No associations

Rating

Revised mass-loss rates for O stars from the Pv resonance line 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 Revised mass-loss rates for O stars from the Pv resonance line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Revised mass-loss rates for O stars from the Pv resonance line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1340449