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Infrared spectroscopy of symbiotic stars. VIII. Orbits for three s-type systems: Ae arae, y coronae Australis, and SS 73-147

Fekel, Francis C; Hinkle, Kenneth H; Joyce, Richard R; Wood, Peter R


With new infrared radial velocities we have computed orbits of the M giants in three southern S-type symbiotic systems. AE Ara and SS 73-147 have circular orbits with periods of 803 and 820days, respectively. The eccentric orbit of Y CrA has a period that is about twice as long, 1619days. Except for CH Cyg it is currently the S-type symbiotic system with the longest period for which a spectroscopic orbit has been determined. The Paschen δ emission line velocities of AE Ara are nearly in...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Astronomical Journal
DOI: 10.1088/0004-6256/139/4/1315


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