Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-24T16:41:26.517Z Has data issue: false hasContentIssue false
  • English
  • Français

Preliminary Results of a Five-Year Survey of Radio Emission from RS CVn and Similar Binaries

Published online by Cambridge University Press:  12 April 2016

P.A. Feldman
P.A. Feldman*
Affiliation:
Herzberg Institute of Astrophysics, National Research Council of Canada, Ottawa, Canada

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

This is a summary of the systematic program of A3cm radio observations of RS CVn and similar binaries which has been carried out since 1977 at the Algonquin Radio Observatory. The observations were made at X-band frequencies (10-11 GHz) with the 46m telescope using the same observing procedures described in Feldman et al. (1978). The detection limit is generally 25 mJy, although it is possible to do somewhat better than this if the star is located well off the galactic plane and if it maintains an elevated flux level (i.e. ≳ 15 mJy) for several hours. The observing list has grown roughly four-fold since the start of the program in 1977. It now encompasses 65 of the 69 “bona fide” RS CVn binaries compiled by Hall (1982); the rest are suspected RS CVn binaries, BY Dra variables, Algol-type binaries, and W UMa binaries. To date, a total of some 85 observing days, representing more than 1000 hours of telescope time, has been devoted to this program.

Type
Session III: Observed Activity in Related Objects
Information
International Astronomical Union Colloquium , Volume 71: Activity in Red-Dwarf Stars , 1983 , pp. 429 - 437
Copyright
Copyright © Reidel 1983

References

Cohen, N.L., Feldman, P.A., Crane, P.C., and Geldzahler, B.J., 1983, in preparationGoogle Scholar
Feldman, P.A., 1981, I.A.U. Circ. No. 3591 Google Scholar
Feldman, P.A., 1983, in preparationGoogle Scholar
Feldman, P.A., and Fraquelli, D.A., 1983, in preparationGoogle Scholar
Feldman, P.A., Taylor, A.R., Gregory, P.C., Seaquist, E.R., Balonek, T.J., and Cohen, N.L., 1978, Astron, J. 83, 1471 Google Scholar
Hall, D.S., 1982, private communication and Space Science Reviews (in preparation) Google Scholar
Hjellming, R.M., and Gibson, D.M., 1980, in Proceedings of IAU Symp. 86, “Radio Physics of the Sun”, eds. Kundu, M.R. and Gergely, T.E. (D. Reidel Publ. Co., Dordrecht: Holland, 1980), p. 209 Google Scholar
Linsky, J.L., 1981, I.A.U. Circ. No. 3591 Google Scholar
Owen, F.N., and Gibson, D.M., 1978, Astron. J. 83, 1488 Google Scholar
Simon, T., Linsky, J.L., and Schiffer, F.H., 1980, Astrophys. J. 239, 911 Google Scholar