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Rotational Velocities of S-Type Symbiotic Stars

Published online by Cambridge University Press:  26 May 2016

Francis C. Fekel ,
Kenneth H. Hinkle  and
Richard R. Joyce
Francis C. Fekel
Affiliation:
Tennessee State University, Center of Excellence in Information Systems, Nashville, Tennessee 37203, USA
Kenneth H. Hinkle
Affiliation:
National Optical Astronomy Observatory, Tucson, Arizona 85726, USA
Richard R. Joyce
Affiliation:
National Optical Astronomy Observatory, Tucson, Arizona 85726, USA

Abstract

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We obtained high-resolution spectroscopic observations at 2.226 μm of 13 S-type symbiotic binaries using the Phoenix infrared spectrograph on Kitt Peak telescopes. from an empirical calibration we determined v sin i values for the giant components. Combined with information from a program to determine orbits, the rotational velocities have been used to estimate the sizes of these stars and the fraction of their Roche lobes that they fill.

Type
Session 1 Observations of Rotating Stars
Information
Symposium - International Astronomical Union , Volume 215: Stellar Rotation , 2004 , pp. 168 - 169
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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