The Overcontact Binary BO Arietis |
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| Affiliation: | 1. Mountain Ash Observatory, 1393 Garvin Street, Prince George, BC, Canada, V2M 3Z1;2. Guest User, Canadian Astronomy Data Centre, which is operated by the Dominion Astrophysical Observatory for the National Research Council of Canada''s Herzberg Institute of Astrophysics;1. Mountain Ash Observatory, 1393 Garvin Street, Prince George, BC, V2M 3Z1, Canada;2. Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council of Canada, College of New Caledonia, Prince George, B.C., Canada;1. Astronomical Institute, Faculty of Mathematics and Physics, Charles University Prague, CZ-180 00 Praha 8, V Holešovičkách 2, Czech Republic;2. Astronomical Institute, Academy of Sciences, Fričova 298, CZ-251 65, Czech Republic;3. Research Centre for Theoretical Physics and Astrophysics, Institute of Physics, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic;1. Department of Physics and Astronomy, Shumen University, Shumen 9700, Bulgaria;2. Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Mexico;3. Department of Astronomy, Beijing Normal University, Beijing 100875, China;1. The International Occultation Timing Association Middle East Section, Iran, info@iota‐me.com;2. The Seventh IOTA/ME Summer School of Astronomy, Astronomical Research Center, Qom, Iran;3. Astrophysics Research Centre and Observatory, Çanakkale Onsekiz Mart University, Terzioğlu Kampüsü, TR-17020, Çanakkale, Turkey;1. Mountain Ash Observatory, 1393 Garvin Street, Prince George, BC, Canada, V2M 3Z1;2. Desert Blooms Observatory, Benson, AZ, Morris;3. Guest User, Canadian Astronomy Data Centre, which is operated by the Dominion Astrophysical Observatory for the National Research Council of Canada''s Herzberg Institute of Astrophysics, Canada;1. Via Don G. Minzoni 26/D, Magnago (MI) 20020, Italy;2. Via Zoncada 51, Codogno (LO) 26845, Italy;3. Via Molinetto 35, Triulza di Codogno (LO) 26845, Italy |
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| Abstract: | New radial velocity and photometric data for BO Ari have been obtained, and Roche-based simultaneous analysis of RV and light curve data for the system has been accomplished using the 2003 version of the Wilson-Devinney code. Values for the masses and radii have been obtained: M1 = 1.34 (2) Mʘ, M2 = 0.26 (1) Mʘ, and R1 = 1.25 (2) Rʘ, R2 = 0.61 (2) Rʘ. For the luminosities the most likely values are L1 = 1.67 (15) Lʘ and L2 = 0.42 (4) Lʘ, each the mean of two values. There is poor agreement with earlier values by Gurol et al. (2015). During the light curve modelling, solutions were found with a small third light contribution, but the existence of the latter cannot be established unambiguously owing to the very close residuals of the different solutions. A third component was not found in the RV data within detection limits. |
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