The PHASES Differential Astrometry Data Archive. II. Updated Binary Star Orbits and a Long Period Eclipsing Binary

التفاصيل البيبلوغرافية
العنوان: The PHASES Differential Astrometry Data Archive. II. Updated Binary Star Orbits and a Long Period Eclipsing Binary
المؤلفون: Muterspaugh, Matthew W., Hartkopf, William I., Lane, Benjamin F., O'Connell, J., Williamson, M., Kulkarni, S. R., Konacki, Maciej, Burke, Bernard F., Colavita, M. M., Shao, M., Wiktorowicz, Sloane J.
سنة النشر: 2010
المجموعة: Astrophysics
مصطلحات موضوعية: Astrophysics - Solar and Stellar Astrophysics
الوصف: Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems have been combined with lower precision single-aperture measurements covering a much longer timespan (from eyepiece measurements, speckle interferometry, and adaptive optics) to determine improved visual orbits for 20 binary stars. In some cases, radial velocity observations exist to constrain the full three-dimensional orbit and determine component masses. The visual orbit of one of these binaries---alpha Com (HD 114378)---shows that the system is likely to have eclipses, despite its very long period of 26 years. The next eclipse is predicted to be within a week of 2015 January 24.
Comment: 10 pages, Accepted to AJ
نوع الوثيقة: Working Paper
DOI: 10.1088/0004-6256/140/6/1623
URL الوصول: http://arxiv.org/abs/1010.4043
رقم الأكسشن: edsarx.1010.4043
قاعدة البيانات: arXiv
الوصف
DOI:10.1088/0004-6256/140/6/1623