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Optical observations of close binaries with the Mark III Stellar Interferometer

Pan, X. P. and Shao, M. and Colavita, M. M. and Armstrong, T. and Mozurkewich, D. and Simon, R. S. and Denisson, C. and Vivekanand, M. and Johnston, K. J. (1990) Optical observations of close binaries with the Mark III Stellar Interferometer. In: Amplitude and Intensity Spatial Interferometry. Proceedings of SPIE. No.1237. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 301-315. ISBN 9780819402813.

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For the first time, four spectroscopic binaries have been directly resolved with the Mark III Stellar Interferometer. Observations in 1988 and 1989 were analyzed, and visual orbits for four binaries have been determined. The semimajor axes for β Tri, α Equ, α And and β Ari are approximately 0.008 arcsec, 0.012 arcsec, 0.024 arcsec and 0.037 arcsec, respectively. The magnitude differences between two components are 0.5, 0.7, 1.8 and 2.6 mag, respectively. All of the orbital elements for α And and β Ari were determined from interferometric data only, and agree well with spectroscopic observations. Predictions of relative position between the two components for these binaries are consistent with the measurements to less than 0.001 arcsec. Combined with data from spectroscopy, masses and distance for the double-lined spectroscopic binary β Ari are derived, and the results indicate that both components of β Ari agree well with the empirical mass-luminosity relation.

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Additional Information:© 1990 SPIE--The International Society for Optical Engineering. Literature survey is based on the SIMBAD data retrieval system, database of the Strasbourg, France, Astronomical Data Center.
Series Name:Proceedings of SPIE
Issue or Number:1237
Record Number:CaltechAUTHORS:20161129-163052104
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Official Citation:Xiaopei Pan ; Michael Shao ; M. Mark Colavita ; J. Thomas Armstrong ; David Mozurkewich ; Richard S. Simon ; C. Denisson ; Maddali Vivekanand and Kenneth J. Johnston "Optical observations of close binaries with the Mark III Stellar Interferometer", Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, 301 (August 1, 1990); doi:10.1117/12.19303;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72416
Deposited By: George Porter
Deposited On:30 Nov 2016 15:22
Last Modified:11 Nov 2021 05:01

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