Physics
Scientific paper
May 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...245..517h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 245, no. 2, May 1991, p. 517-527. Research supported by Ferdowsi University of
Physics
12
Binary Stars, Early Stars, Stellar Physics, Variable Stars, Diameters, Stellar Mass, Stellar Spectrophotometry
Scientific paper
Velocity measurements of the early-type binary system V 599 Aql were taken on the basis of Reticon observations. The velocity measurements are based on fitting a cross-correlation function (CCF) derived from a spectrum taken at conjunction to the observed CCFs. Such a profile matched the various observed cross-correlation functions excellently. A spectrophotometric analysis yields spectral types of B3V and B5V for each component and a luminosity ratio of 3.4 + or - 0.1. The system is analyzed, assuming masses consistent with ZAMS objects and synchronous rotation, but this leads to radii and absolute magnitudes that are similar to main-sequence values. Alternatively, when ZAMS masses and radii are assumed, stars are found to rotate about 50 percent above synchronism. Both analyses produce photometric elements that satisfy a rather noisy light curve.
Hill Gary
Khalesseh Bahram
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