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The relation between RS CVn and Algol

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Abstract

Late-type secondaries in Algol binaries are rapidly rotating convective stars and thus should be chromospherically active (CA). They are examined with respect to observational manifestations which characterize already known CA stars: Ca II H and K emission cores, photometric variability attributable to starspots, soft x-ray emission, non-thermal radio emission, ultraviolet and infrared excess, and alternating period changes. The conclusion is that they can be regarded as another class of CA stars. In most respects they are literally indistinguishable from other CA stars. Ca II H and K emission cores are observed in the lobe-filling component of six semi-detached binaries: U Cep, RT Lac, RV Lib, AR Mon, S Vel, HR 5110. Alternating period changes are shown to occur only in Algols containing a late-type (convective) star. It is proposed, therefore, that the Matese-Whitmire mechanism explains these changes. Specifically, the interval from one increase (or decrease) to the next can be equated with the star's magnetic cycle. Cycle lengths for 31 stars, derived in this way, range between 7 years and 109 years, with a median of 50 years.

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References

  • Appenzeller, I., Dearborn, D.S.P. 1984, Ap.J. 278, 689.

    Google Scholar 

  • Arnold, C.N., Hall, D.S., Montle, R.E., Stuhlinger, T.W. 1979, Acta Astr. 29, 243.

    Google Scholar 

  • Baldwin, B.W. 1973, P.A.S.P. 85, 714.

    Google Scholar 

  • Baliunas, S.L., Vaughan, A.H. 1985, Ann. Rev. Astr. Astrophys. 23, 379.

    Google Scholar 

  • Bond, H.E. 1972, P.A.S.P. 84, 839.

    Google Scholar 

  • Bopp, B.W. 1983, I.A.U. Colloq. No. 71, 363.

  • Bopp, B.W., Fekel, F.C. 1977, A.J. 82, 490.

    Google Scholar 

  • Burke, E.W. et al. [10 authors] 1980, A.J. 85, 744.

    Google Scholar 

  • De Campli, W.M., Baliunas, S.L. 1979, Ap.J. 230, 815.

    Google Scholar 

  • Eaton, J.A., Hall, D.S. 1979, Ap.J. 227, 907.

    Google Scholar 

  • Eaton, J.A. 1986, Acta Astr. 36, 79.

    Google Scholar 

  • Eker, Z. 1985, Wisconsin Astrophysics No. 228.

  • Fekel, F.C., Moffett, T.J., Henry, G.W. 1986, Ap.J. Suppl. 60, 551.

    Google Scholar 

  • Fekel, F.C., Moffett, T.J., Henry, G.W., Simon, T. 1986, Cool Stars, Stellar Systems, and the Sun, edited by M. Zeilik & D.M. Gibson (Berlin: Springer-Verlag), 71.

  • Feldman, P.A., Kwok, S. 1979, J.R.A.S. Canada 73, 271.

    Google Scholar 

  • Gibson, D.M. 1980, I.A.U. Symp. No. 88, 31.

  • Giuricin, G., Mardirossian, F., Mezzetti, M. 1983, Ap.J. Suppl. 52, 35.

    Google Scholar 

  • Hall, D.S. 1969, B.A.A.S. 1, 345.

    Google Scholar 

  • Hall, D.S. 1974, Acta Astr. 24, 215.

    Google Scholar 

  • Hall, D.S. 1975a, Acta Astr. 25, 1.

    Google Scholar 

  • Hall, D.S. 1975b, Acta Astr. 25, 95.

    Google Scholar 

  • Hall, D.S. 1976, I.A.U. Colloq. No. 29, 287.

  • Hall, D.S. 1983, Advances in Photoelectric Photometry 1, 18.

    Google Scholar 

  • Hall, D.S. 1987, Pub. Astr. Inst. Czech. 70, 77.

    Google Scholar 

  • Hall, D.S., Kreiner, J.M. 1980, Acta Astr. 30, 387.

    Google Scholar 

  • Hill, G., Aikman, G.C.L., Cowley, A.P., Bolton, C.T., Thomas, J.C. 1976, Ap.J. 208, 152.

    Google Scholar 

  • Klimek, Z., Kreiner, J.M. 1973, Acta Astr. 23, 331.

    Google Scholar 

  • Klimek, Z., Kreiner, J.M. 1975, Acta Astr. 25, 29.

    Google Scholar 

  • Knipe, G.F.G. 1974, M.N. 167, 369.

    Google Scholar 

  • Koch, R.H., Plavec, M., Wood, F.B. 1970, Publ. Univ. Pennsylvania, Astr. Ser. 10.

  • Matese, J.J., Whitmire, D.P. 1983, Astr. Astrophys. 117, L7.

    Google Scholar 

  • Morgan, J.G., Eggleton, P.P. 1979, M.N. 187, 661.

    Google Scholar 

  • Morris, D.H., Mutel, R.L. 1988, A.J. 95, 204.

    Google Scholar 

  • Mutel, R.L., Morris, D.H. 1987, A.J. 93, 1220.

    Google Scholar 

  • Olson, E.C. 1981, Ap.J. 250, 704.

    Google Scholar 

  • Olson, E.C. 1985a, Interacting Binaries, edited by P.P. Eggleton and J.F. Pringle (Dordrecht: Reidel), 127.

  • Olson, E.C. 1985b, I.A.P.P.P. Comm. No. 19, 6.

  • Olson, E.C. 1987, A.J. 94, 1043.

    Google Scholar 

  • Olson, E.C., Crawford, R.C., Hall, D.S., Louth, H., Markworth, N.L., Piirola, V. 1981, P.A.S.P. 93, 464.

    Google Scholar 

  • Pallavicini, R., Golub, L., Rosner, R., Vaiana, G.S., Ayres, T., Linsky, J.L. 1981, Ap.J. 248, 279.

    Google Scholar 

  • Plavec, M., Ulrich, R.K., Polidan, R.S. 1973, P.A.S.P. 85, 769.

    Google Scholar 

  • Poe, C.H., Eaton, J.A. 1985, Ap.J. 289, 644.

    Google Scholar 

  • Popper, D.M. 1976, Ap.J. 208, 142.

    Google Scholar 

  • Popper, D.M., DuMont, P.S. 1977, A.J. 82, 216.

    Google Scholar 

  • Popper, D.M., Ulrich, R.K. 1977, Ap.J. 212, L131.

    Google Scholar 

  • Rhombs, C.G., Fix, J.D. 1976, Ap.J. 209, 821.

    Google Scholar 

  • Rucinski, S.M. 1976, P.A.S.P. 88, 244.

    Google Scholar 

  • Sahade, J. 1952, Ap.J. 116, 35.

    Google Scholar 

  • Söderhjelm, S. 1980, Astr. Astrophys. 89, 100.

    Google Scholar 

  • Strassmeier, K.G., Hall, D.S., Zeilik, M., Nelson, E., Eker, Z., Fekel, F.C. 1988, Astr. Astrophys. Suppl. 72, 291.

    Google Scholar 

  • VanBuren, D., Young, A. 1985, Ap.J. 295, L39.

    Google Scholar 

  • White, N.E., Marshall, F.E. 1983, Ap.J. 268, L117.

    Google Scholar 

  • White, N.E. et al. [7 authors] 1986, Ap.J. 301, 262.

    Google Scholar 

  • Wood, F.B., Oliver, J.P., Florkowski, D.R., Koch, R.H. 1980, Publ. Univ. Pennsylvania, Astr. Ser. 12.

  • Zeilik, M., Hall, D.S., Feldman, P.A., Walter, F. 1979, S. & T. 57, 132.

    Google Scholar 

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Authors and Affiliations

  1. Dyer Observatory Vanderbilt University, 37235, Nashville, Tennessee, USA

    Douglas S. Hall

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  1. Douglas S. Hall
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Hall, D.S. The relation between RS CVn and Algol. Space Sci Rev 50, 219–233 (1989). https://doi.org/10.1007/BF00215932

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  • DOI: https://doi.org/10.1007/BF00215932

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