Infrared Spectroscopy of Symbiotic Stars. V. First Orbits for Three S-Type Systems: Henize 2-173, CL Scorpii, and AS 270

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

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Infrared Spectroscopy of Symbiotic Stars. V. First Orbits for Three S-Type Systems: Henize 2-173, CL Scorpii, and AS 270

Date

2007

Authors

Fekel, Francis C

Hinkle, Kenneth H

Joyce, Richard R

Wood, Peter R

Lebzelter, Thomas

Publisher

University of Chicago Press

Abstract

Infrared radial velocities have been used to compute first orbits of the M giants in three southern S-type symbiotic systems. Of the three, Hen 2-173 has the longest orbital period, 911 days, and also has a noncircular orbit with an eccentricity of 0.21.