Orbits of Double Stars from Long Baseline Optical Interferometry

Details Orbits of Double Stars from Long Baseline Optical Interferometry Orbits of Double Stars from Long Baseline Optical Interferometry

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.8604h&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #86.04; Bulletin of the American Astronomical Society, Vol. 25, p.1426

Astronomy and Astrophysics

Astronomy

Scientific paper

The spectroscopic binary observing program of the Mark III Optical Interferometer has produced six published orbits and twenty preliminary orbits. The mean precision is 0.3% for measurements of sin i and 0.7% for measurements of the semimajor axis a. These orbits represent more than half of the systems with detected nightly visibility variations in excess of about 20%, corresponding to a pair of unresolved components with a magnitude difference of not more than 2.4 magnitudes. By the same criterion, we detected indications of multiplicity in about half of the stars we had selected from catalogs of spectroscopic binaries with predicted major axes between 3 mas and 40 mas, m_V < 5, delta > -10(deg) , and for which we had obtained a sufficient amount of data. We describe our data analysis, which features direct fitting of the orbital elements and component parameters to the measured visibilities, as well as our uncertainty analysis based on Monte Carlo simulations. We present results on some of the binaries, notably a very high precision orbit of Capella with the component diameters determined, and sub-10-mas angular scale orbits of beta Aurigae, pi Andromedae, theta Aquilae, beta and delta Trianguli. We discuss some of the results in terms of stellar evolution theory.

Affiliated with

Also associated with

No associations

Rating

Orbits of Double Stars from Long Baseline Optical Interferometry 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 Orbits of Double Stars from Long Baseline Optical Interferometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orbits of Double Stars from Long Baseline Optical Interferometry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-780678