Orbital solutions for SB2 systems with a HgMn component

Details Orbital solutions for SB2 systems with a HgMn component Orbital solutions for SB2 systems with a HgMn component

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...416..661c&link_type=abstract

Astronomy and Astrophysics, v.416, p.661-668 (2004)

Astronomy and Astrophysics

Astrophysics

7

Stars: Binaries: Spectroscopic, Stars: Chemically Peculiar, Stars: Genera

Scientific paper

From a new set of spectroscopic observations we determined orbital parameters of six SB2 systems with one or both components being HgMn stars.
We slightly refined the orbital periods for HD 32964, HD 173524, HD 174933 and HD 216494. Our results for HD 358 are in agreement with the previous literature studies. Regarding HD 33647, our orbital period is shorter than previous determinations. HD 173524 is a triple system. From the variations of the γ-velocity deduced from our and literature data, we refined the orbital period and we estimated the eccentricity of the third companion, for which we get e ≈ 0.13 and Porb = 36 ± 3 years. HD 191110 and HD 216494 seem to be the only synchronous SB2 within our sample. Following the hypothesis of rotational axes perpendicular to the orbital plane, we estimated the angle of the orbital plane to the line of sight. We identified in our spectra the signature of the Hβ of the third component of HD 216494 and we highlight a slight variation of the γ-velocity due to the presence of this component.
Based on observations collected at the Stellar Station ``M. G. Fracastoro'' of the Catania Astrophysical Observatory, Italy.
Appendix A is only available in electronic form at http://www.edpsciences.org

Affiliated with

Also associated with

No associations

Rating

Orbital solutions for SB2 systems with a HgMn component 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 Orbital solutions for SB2 systems with a HgMn component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orbital solutions for SB2 systems with a HgMn component will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1620029