Properties and nature of Be stars. 24. Better data and model for the Be+F binary V360 Lacertae

Details Properties and nature of Be stars. 24. Better data and model for the Be+F binary V360 Lacertae Properties and nature of Be stars. 24. Better data and model for the Be+F binary V360 Lacertae

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26a...455.1037l&link_type=abstract

Astronomy and Astrophysics, Volume 455, Issue 3, September I 2006, pp.1037-1052

Astronomy and Astrophysics

Astrophysics

7

Stars: Emission-Line, Be, Binaries: Close, Binaries: Spectroscopic, Stars: Fundamental Parameters, Stars: Individual: V360 Lac

Scientific paper

Aims.We include existing photometric and spectroscopic material with new observations in a detailed study of the Be+F binary V360 Lac. Methods: .We used the programs FOTEL and KOREL to derive an improved linear ephemeris and to disentangle the line profiles of both binary components and telluric lines. The BINSYN software suite (described in the paper) is used to calculate synthetic light curves and spectra to fit the {UBV} photometry, an {IUE} spectrum, blue and red ground-based spectra, and observed radial-velocity curves. Results: .The observations provide evidence of circumstellar matter in the system. The system model shows that the Be primary star is critically rotating, and that the synchronously rotating secondary star fills its Roche lobe. The primary star has a mass of 7.45&sun;. Radial-velocity observations establish a mass ratio of 0.163. Light curve synthesis demonstrates that the observed light curves are controlled largely by tidal distortion and irradiation of the massive primary by the less massive secondary. Synthetic spectra fit both blue and red observed spectra with the exception of spectral lines affected by circumstellar matter in the system. The synthetic spectra allow for gravity darkening and are consistent with critical rotation of the primary. Synthetic spectrum fits to a dereddened {IUE} spectrum produce a calculated system distance of 512 pc. This distance is 2σ beyond the Hipparcos distance.

Affiliated with

Also associated with

No associations

Rating

Properties and nature of Be stars. 24. Better data and model for the Be+F binary V360 Lacertae 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 Properties and nature of Be stars. 24. Better data and model for the Be+F binary V360 Lacertae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties and nature of Be stars. 24. Better data and model for the Be+F binary V360 Lacertae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-991722