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Long-Term Coudé Radial-Velocity Studies With a 1.2-m Telescope

Published online by Cambridge University Press:  12 April 2016

C.D. Scarfe
C.D. Scarfe*
Affiliation:
Department of Physics and Astronomy, University of Victoria, Victoria, B.C., V8W 3P6, Canada

Abstract

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I have used the 1.2-m telescope and coudé spectrograph of the Dominion Astrophysical Observatory for more than 30 years in a program of radial-velocity observations of binary stars. The program was begun with photographic plates as detectors, but for 20 years the primary detector has been the radial-velocity scanner, which cross-correlates stellar spectra with an artificial mask.

Since some of the binaries under observation have periods of several years, the instrument’s stability is an important consideration. I have therefore been obliged to observe standard stars and asteroids to check its performance. These observations are of relevance to efforts to improve the IAU standard star system.

I will describe the telescope, spectrograph and scanner, and will briefly discuss some of the results obtained for a selection of binary and multiple stars.

Type
VII. Science With Small Telescopes
Information
International Astronomical Union Colloquium , Volume 183: Small-Telescope Astronomy on Global Scales , 2001 , pp. 283 - 288
Copyright
Copyright © Astronomical Society of the Pacific 2001

References

Andersen, J.A. 1991, A&ARev 3, 91 Google Scholar
Fekel, F.C. 1981, ApJ, 248, 670 CrossRefGoogle Scholar
Fekel, F.C., & Scarfe, C.D. 1986, AJ, 92, 1162 CrossRefGoogle Scholar
Fekel, F.C., Scarfe, C.D., Barlow, D.J., Duquennoy, A., McAlister, H.A., Hartkopf, W.I., Mason, B.D., & Tokovinin, A.A., 1997, AJ 113, 1095 CrossRefGoogle Scholar
Fletcher, J.M., Harris, H.C., McClure, R.D., & Scarfe, C.D. 1982, PASP 562, 1017 CrossRefGoogle Scholar
Hearnshaw, J.B. 1977, Observatory 97, 5 Google Scholar
Griffin, R.F. 1967, ApJ 148, 465 CrossRefGoogle Scholar
Griffin, R.F. 1977, Observatory 97, 9 Google Scholar
Griffin, R.F. 1991, Observatory 111, 67 Google Scholar
McClure, R.D., Fletcher, J.M., Grundmann, W.A., & Richardson, E.H. 1985, in Stellar Radial Velocities (Proc. IAU Colloquium 88), ed. Philip, A.G.D. & Latham, D.W., L. Davis Pres, Schenectady, 49 Google Scholar
Popper, D.M. 1980, ARA&A 18, 115 Google Scholar
Richardson, E.H. 1968, JRASC 62, 313 Google Scholar
Scarfe, C.D. 1985, in Calibration of Fundamental Stellar Quantities (Proc. IAU Symposium 111), ed. Hayes, D.S., Pasinetti, L.E. & Philip, A.G.D., Dordrecht: Reidel, 583 CrossRefGoogle Scholar
Scarfe, C.D. 2000, Standard Star Newsletter 29, 10 Google Scholar
Scarfe, C.D., Barlow, D.J., & Fekel, F.C. 2000, AJ 119, 2415 CrossRefGoogle Scholar
Scarfe, C.D., Barlow, D.J., Fekel, F.C., Rees, R.F., McAlister, H.A., Hartkopf, W.I., Lyons, R.W., & Bolton, C.T. 1994, AJ 107, 1529 CrossRefGoogle Scholar
Scarfe, C.D., Batten, A.H., & Fletcher, J.M. 1990, Pub. DAO 18, 21 Google Scholar
Skuljan, J., Hearnshaw, J.B., & Cottrell, P.L. 1999, in Precise Stellar Radial Velocities (Proc. IAU Colloquium 170), ed. Hearnshaw, J.B. & Scarfe, C.D., ASP Conf. Ser. 185, 98 Google Scholar
Stilborn, J.R., Fletcher, J.M., & Hartwick, F.D.A. 1972, JRASC 66, 49 Google Scholar
Van Hamme, W. et al. 1994, AJ, 107, 1521 CrossRefGoogle Scholar
Wasson, R. et al. 1994, AJ, 107, 1514 CrossRefGoogle Scholar