Infrared Spectroscopy of Symbiotic Stars. Vi. Combined Orbits for Two S-Type Systems: V455 Scorpii and SS 73-90
We have combined new infrared radial velocities and previously obtained spectropolarimetric observations to compute orbits of the M6 giants in two southern S-type symbiotic systems. The spectropolarimetric data enable the orbital inclinations of the systems to be determined, placing greater constraints on the properties of the components. V455 Sco has a circular orbit with a period of 1398 6 days and an inclination of 94° 1°. The orbit of SS 73-90 has a period of 898 5 days, a modest...[Show more]
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