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The Spectroscopic-Speckle Triple System HR 6469

Published online by Cambridge University Press:  12 April 2016

C. Scarfe ,
D. Barlow ,
H. McAlister ,
W. Hartkopf ,
F. Fekel ,
R. Rees ,
R. Lyons  and
C. Bolton
C. Scarfe
Affiliation:
Dept. Physics &, Astronomy, Univ. of Victoria, Victoria, BC V8W 3P6
D. Barlow
Affiliation:
Dept. Physics &, Astronomy, Univ. of Victoria, Victoria, BC V8W 3P6
H. McAlister
Affiliation:
CHARA, Georgia State University, Atlanta, GA 30303
W. Hartkopf
Affiliation:
CHARA, Georgia State University, Atlanta, GA 30303
F. Fekel
Affiliation:
NASA Marshall Space Flight Center, Huntsville, AL 35812
R. Rees
Affiliation:
Yerkes Observatory, Box 258, Williams Bay, WI 53191-0258
R. Lyons
Affiliation:
CASS, University of California at San Diego, La Jolla, CA 92093-0111
C. Bolton
Affiliation:
David Dunlap Obs., Univ. of Toronto, Richmond Hill, ON L4C 4Y6

Extract

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HR 6469 consists of an evolved G5 star and a close pair of fainter stars, probably both on the main sequence. The period of the close pair is just over two days, and shallow eclipses have been detected (Boyd et al. 1985), although no analysis of the light curve has been published. The wide system has a period of about 5.5 years, and has been resolved by speckle interferometry (McAlister et al. 1983). The G5 star and the primary of the close pair are detectable in the spectrum, with the latter showing modest rotational broadening. Spectral types and rotational velocities for the evolved star and the brighter component of the close pair have been published by Strassmeier & Fekel (1990).

Type
High Resolution At Visual Wavelengths
Information
International Astronomical Union Colloquium , Volume 135: Complementary Approaches to Double and Multiple Star Research , 1992 , pp. 567 - 569
Copyright
Copyright © Astronomical Society of the Pacific 1992

References

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McAlister, H.A. & Hartkopf, W.I. 1988. Second Catalog of Interferometrie Observations of Binary Stars, CHARA, Georgia State University, Atlanta Google Scholar
McAlister, H.A., Hartkopf, W.I., & Franz, O.G. 1990, AJ, 99, 965 CrossRefGoogle Scholar
McAlister, H.A., Hendry, E.M., Hartkopf, W.I., Campbell, B.G., & Fekel, F.C. 1983, ApJS, 51, 309 CrossRefGoogle Scholar
Strassmeier, K.G. & Fekel, F.C. 1990, A&A, 230, 389 Google Scholar