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2021RNAAS...5..156G - Research Notes of the AAS, 5, 156 (2021/July-0)

OW Hydrae: A Newly Discovered SB2 Algol in a Triple Star, from DAO Spectrograms.

GANDET T.L.

Abstract (from CDS):

Evidence is presented that the detached Algol system OW Hya is a double-lined spectroscopic binary (SB2). The components appear to be closely similar to each other, which is contradicted by the failure so far to detect the secondary eclipse. A sizeable asymmetry in the Mg IIλ4481 Å line is discussed. The interstellar line of Ca II-K line is present, and the primary star appears to be a late-B giant. OW Hya is the short-period pair of the interferometric triple star, CHR 175, which appears to be hierarchical.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Spectroscopic binary stars - Binary stars - Detached binary stars - Eclipsing binary stars - Trinary stars - Interferometric binary stars

Simbad objects: 1

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