Abstract
An empirical relationship is discovered for RS CVn type close binary systems between their absolute luminosity, L(MgII), of the ultraviolet magnesium doublet 2800 MgII, and the intercomponent distancea of the system. It has the following form: L(MgII) ∼a n(Figure 1). It is shown that for the overwhelming majority of binary systemsn = 1 (Figure 4). This correlation presents itself as a direct confirmation of the intercomponent origin of the observed emission, particularly, in the magnesium doublet in close binary systems. The basic relationship of intercomponent emission is derived in the form: L(MgII) = 1.0 × 1032 a ergs s−1. At the same time, accidental statistical divergences from this correlation are possible on both sides: asn > 1 as welln < 1 (Figure 4). The correlationn = 1 determines also the character, - i.e. cylindric for a stream - of the transfer of gaseous matter from one component of the system to the other, and in the general gas dynamics of the intercomponent medium.
The existence of a new category of stellar atmosphere, - which we callroundchrom, is predicted, representing the common chromosphere of a superclose binary system, surrounding or blending both components of the system (Figure 3). The boundaries between the three most important divisions of magnesium doublet emission - chromosphere of single stars, roundchrom of superclose binary systems and intercomponent space - are established for RS CVn type systems. Finally, a number of new problems, both observational and theoretical, are brought forward.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Allen, C.W.: 1973, Astrophys. Quantities, 3th Ed. Athlone Press.
Ayres, T. and Linsky, J.L.: 1980,Ap. J. 241, 279.
Basri, G. and Laurent, R.: 1985,Ap. J. 298, 761.
Bohm-Vitense, E.: 1982,Ap. J. 258, 628.
Budding, E., Kadoure, T.H., and Gimenez, A.: 1982,Ap. Space Sci. 88, 453.
Gurzadyan, G.A. and Perez, M.: 1991,Ap. Space Sci. 180, 1.
Hall, J.C., Huenemoerder, D.P., and Ramsey, L.W.: 1990,Ap. J. 358, 610.
Hartman, L., Dupree, A.K., and Raymond, J.C.: 1982,Ap. J. 252, 214.
Hartman, L., Baliunas, S., Duncan, D., and Noyes, R.: 1984,Ap. J. 279, 778.
Huenemoerder, D.P., Buzasi, D.L., and Ramsey, L.W.: 1989,A. J. 98, 1398.
Huenemoerder, D.P., Ramsey, L.W., and Buzasi, D.L.: 1990,Ap. J. 350, 763.
Linsky, J.L., Bornmann, P.L., Carpenter, K.G., Wing, R.F., Giampapa, M.S., Werden, S.P., and Keith Hege, A.: 1982,Ap. J. 260, 670.
Nandy, K., Thompson, G.I., Jamar, C., Monfils, A., and Wilson, R.: 1975,Astr. Ap. 44, 195.
Neff, J.E., Walter, F.M., Rodono, M., and Linsky, J.L.: 1989,Astr. Ap. 215, 79.
Newmark, J.S., Buzasi, D.L., Huenemoerder, D.P., and Ramsey, L.W.: 1990,A. J. 100, 560.
Oranje, B.J.: 1986,Astr. Ap. 154, 185.
Paczynski, B.: 1971,Ann. Rev. Astr. Ap. 9, 183.
Rucinski, S.M., Vilhu, O., and Whelan, J.A.J.: 1985,Astr. Ap. 143, 153.
Schrijver, G.J. and Zwaan, C.: 1991,Astr. Ap. 251, 183.
Simon, T. and Linsky, J.L.: 1980,Ap. J. 241, 759.
Simon, T., Linsky, J.L., and Stencel, R.E.: 1982,Ap. J. 257, 225.
Stencel, R.E., Mullan, D.J., Linsky, J.L., Basri, G.S., and Werden, S.P.: 1980,Ap. J. Suppl. 44, 383.
Strassmeier, K.G., Hall, D.S., Zeilik, M., Nelson, E., Eker, Z., and Fekel, F.C.: 1988,Astr. Ap. Suppl. 72, 291.
Vilhu, O.: 1984,Astr. Ap. L133, 117.
Vilhu, O. and Walter, F.M.: 1987,Ap. J. 321, 958.
Walter, F.M., Linsky, J.L., Simon, T., Golub, L., and Vaiana, G.S.: 1984,Ap. J. 281, 815.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gurzadyan, G.A., Cholakyan, V.G. On the intercomponent emission in close binary systems. Astrophys Space Sci 229, 185–202 (1995). https://doi.org/10.1007/BF00626866
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00626866