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The physical parameters of the preliminary determination of the multiple system HD 222326

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In this work we determine some parameters of the triple star HD 222326. The result is based on high-resolution spectra obtained at the coudé echelle spectrograph of the 1.5Âm Russian–Turkish telescope RTT150 (AZT22). We redetermined the spectral class of the whole system and found high-amplitude short-time (relative to the known orbital period) variability of its radial velocity. This could be explained by the presence of the fourth component. Its nature is also discussed.

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Keywords: HD 222326; Multiple stars; Spectroscopy

Document Type: Research Article

Affiliations: Kazan State University, Astronomical Department, Kremlevskaya Street 18, Kazan, 420008, Russia

Publication date: 01 April 2006

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