Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system θ Muscae

Details Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system θ Muscae Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system θ Muscae

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mnras.335.1069h&link_type=abstract

Monthly Notice of the Royal Astronomical Society, Volume 335, Issue 4, pp. 1069-1078.

Astronomy and Astrophysics

Astronomy

23

Binaries: Close, Stars: Individual: Θ Mus, Stars: Individual: Wr 42, Stars: Individual: Wr 79, Stars: Mass-Loss, Stars: Wolf-Rayet

Scientific paper

High signal-to-noise ratio, moderate-resolution spectra, providing full phase coverage of the 19-d WC6 + OB binary θ Mus (WR 48, HD 113904), have been obtained and show dramatic variations of the C IIIλ5696 emission-line profile. We have modelled these line profile variations using a purely geometrical model which assumes that the emission arises from two regions, an optically thin spherical shell around the WR star and a cone-shaped region that partially wraps around the OB star. The cone-shaped region represents the shock front arising from the collision between the winds of the two stars. This work builds upon our earlier study of WR 42 and WR 79, and uses a completely new code for the modelling, which includes the effects of turbulence. We now find much better agreement between the orbital inclination angles found for these stars with those determined using other methods. The fitting parameters found via modelling the C IIIλ5696 profile variations of θ Mus are used to infer that the OB companion most likely has a spectral type of O6V or O7V. The modelling presented here continues to show the exciting promise of a better understanding of WR star fundamental parameters.

Affiliated with

Also associated with

No associations

Rating

Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system θ Muscae 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 Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system θ Muscae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system θ Muscae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1426751