The Mg II emission in a sample of regular-period RS CVn systems
Loading...
Official URL
Full text at PDC
Publication date
1986
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
EDP Sciencies
Citation
Andersen, J.; Clausen, J.V., Nordstrom, B.: 1981, Astron. Astrophys. 101, 7
Ayres, T.R.; Marstad, N.C., Linsky, J.L.: 1981, Astrophys. J. 247, 545
Bakos, G.A.: 1984, Astron. J. 89, 1740
Baliunas, S.L., Dupree, A.K.: 1982, Astrophys. J. 252, 668
Basri, G.; Laurent, R., Walter, F.M.: 1985, Astrophys. J. 298, 761
Bennett, N.W.; Evans, D.S., Laing, J.D.: 1962, R. Obs. Ann. No. 61
Blanco, C.; Bruca, L.; Catalano, S., Marilli, E.: 1982, Astron. Astrophys. 115, 280
Blanco, C.; Catalano, S.; Marilli, E., Rodono, M.: 1974, Astron. Astrophys. 33, 257
Bowsgaard, A.M., Simon, T.: 1984, Astrophys. J. 277, 241 Bopp, B.W.: 1981, Astron J. 86, 771
Byrne, P.B.; Butler, C.J.; Andrews, A.D.; Linsky, J.L.; Simon, T.; Marstad, N.; Rodono, M.; Blanco, C.; Catalano, S. and Marilli, E.: 1982, in Third European IUE Conference ESA SP-176, p. 125
Collier, A.C.; Haynes, R.R.; Slee, O.B.; Wright, A.E., Hillier, D.J.: 1982, Monthly Notices Roy. Astron. Soc. 200, 869
Conti, R.: 1967, Astrophys. J. 149, 629
Crytcher, R.M.: 1982, Astrophys. J. 254, 88
Dorren, J.D., Guinan, E.F.: 1980, Astron. J. 85, 1082
Eaton, J.A.; Hall, D.S.; Henry, G.W.; Vaucher, C.A.; Louth, H., Skillman, D.R.: 1981, Astrophys. Space Sci. 80, 405
Eaton, J.A.; Scaltriti, F.; Cerruti Sola, M.; Sarma, M.B.K.; Ansekar, B.D.; Catalano, S., Rodono, M.: 1982, Astrophys. Space Sci. 82, 289
Eggen, O.G.: 1978, Inf. Bull. Var. Stars, No. 1426
Fernández Figueroa, M.J.; Castro, de E., Giménez, A.: 1985, Astron. Astrophys . Suppl. Ser. 60, 5
Fekel, F.C.; Moffet, T.J., Henry, G.W.: 1986, Astrophys. J. Suppl. Ser. 60
Gatewood, G., Sofia, S.: 1976, Publ. Astron. Soc. Pacific 521, 50
Gilliland, R.L.: 1985, Astrophys. J. 299, 286
Hall, D.S.: 1976, in "Multiple Periodic Variable Stars", IAU Colloquium 29, p. 287
Hall, D.S.; Montle, R.E., Atkins, H.L.: 1975, Acta Astron. 25, 125
Hall, D.S., Kreiner, J.M.: 1980, Acta Astron. 30, 387
Hall, D.S.: 1981, in "Solar Phenomena in Stars and Stellar Systems", Bonnet R.M. and Dupree, A.K. (eds.), p. 431
Hartmann, L.; Baliunas, S.L.; Duncan, K.D., Noyes, R.W.: 1984, Astrophys. J. 279, 778
Hellwege, K.H.: 1982, Landolt-Borstein, Numerical Data and Functional Relationship in Science and Technology. New Series. Group VI, Vol. 2, Subvol. b, Shaifers, K. and Voigt, H.H. (eds)
Huenemoerder, K.P., Ramsey, L.W.: 1984, Astron. J. 89, 549
Jakate, S.; Bados, G.A.; Fernie, J.D., Heard, F.J.: 1976, Astron. J. 81, 250
Kuratac, M., Ibanoglu, C.: 1981, in "Photometric and Spectroscopic Binary Systems", Carling, F.B. and Kopal, Z. (eds), p. 389
Lacy, C.H.: 1979, Astrophys. J. 228, 817
Linsky, J.L.: 1984, in "Cool Stars, Stellar Systems and the Sun", Baliunas, S.L. and Hartmann, L. (eds), p. 244
Ludington, E.W.: 1978, Bull. Amer. Astron. Soc. 10, 418
Mangeney, A., Praderie, F.: 1984, Astron. Astrophys. 130, 143
Marstad, N.; Linsky, J.L.; Simon, T.; Rodono, M.; Blanco, C.; Catalano, S.; Marilli, E.; Andrews, A.D.; Butler, C.J., Byrne, P.B.: 1982, in "Advances in UV Astronomy: Four years of IUE Research", NASA CP-2238, p. 554
Nelson, E., Zeilik, M.: 1984, Inf. Bull. Var. Stars, No. 2458
Noyes, R.W.; Hartmann, L.; Baliunas, S.L.; Duncan, K.D., Vaughan, A.H.: 1984, Astrophys. J. 279, 763
Popper, D.M.: 1961, Astrophys. J. 133, 148
Rucinski, S.M.: 1985, Monthly Notices Roy. Astron. Soc. 215, 615
Shore, S.N., Adelman, S.J.: 1984, Astrophys. J. Suppl. Ser. 54, 151
Simon, T.; Linsky, J.L., Schiffer, F.H.: 1980, Astrophys. J. 239, 911
Simon, T.; Linsky, J.L., Schiffer, F.H.: 1981, in "The Universe at UV wavelengths", NASA CP-2171, p. 435
Stacy, J.G.; Stencel, R.E., Weiler, E.J.: 1980, Astron. J. 85, 858
Tumer, O.; Ibanoglu, C.; Tunea, Z., Evren, S.: 1984, Astrophys. Space Sci. 104, 225
Vaiana, G.S.; Cassinelli, J.P.; Fabbiano, G.; Giacconi, R.; Golub, L.; Gorenstein, P.; Haish, B.M.; Harnden, F.R.; Johnson , H.M.; Linsky, J.L.; Maxson, C.W.; Mevw, R.; Rosner, R.; Seward, F.; Topka, K., Zwaan, C.: 1981, Astrophys. J. 253, 745
Vivekanada, R.P., Sarma, V.B.K.: 1981, in Photometric and Spectroscopic binary systems, Carling, E.B. and Kopal, Z. (eds), p. 361
Vladilo, G.; Beckman, J.E.; Crivellari, L.; Franco, M.L., Molaro, P.: 1985, Astron. Astrophys. 144, 81
Walter, F.M.: 1981, Astrophys. J. 245, 677
Walter, F.M.: 1982, Astrophys. J. 253, 745
Walter, F.M., Bowyer, C.S.: 1981, Astrophys. J. 245, 671
Walter, F.M.; Cash, W.; Charles, P.A., Bowyer, C.S.: 1980, Astrophys. J. 236, 212
Abstract
We have studied a sample of ten RS CVn systems by means of IUE high resolution long wavelength spectra. A general trend toward decreasing chromospheric activity (R_hk) for slower rotating stars has been found. Considering the R_hk values and their relation with structural parameters (T_eff, logg, log P_rot) we suggest that there are two possible different activity levels. The less active systems have Rhk chromospheric activity levels similar to the single cool stars showing the same general trend. A relation between R_hk and the inverse Rossby number has been obtained, in which the RS CVn stars fill the gap found by Rucinski between W UMa and the main-sequence stars.
Description
© European Southern Observatory. The authors are very grateful to Dr. F.M. Walter for many valuable comments and suggestions.