Hostname: page-component-7479d7b7d-wxhwt Total loading time: 0 Render date: 2024-07-09T07:29:28.898Z Has data issue: false hasContentIssue false

Theory Of Multiperiodic RR Lyrae Stars

Published online by Cambridge University Press:  12 April 2016

R. F. Stellingwerf*
Affiliation:
Department of Astronomy, Columbia University, New York, N. Y.

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.

The subject “Multiperiodic RR Lyrae Stars” encompasses two entirely different types of phenomena: 1) long-term modulation of amplitude known as the Blazhko-effect and 2) simultaneous excitation of several radial modes. In the first category the observational material is now quite extensive, but very little theoretical analysis has been undertaken. In the second case the results of pulsation theory are applicable, but only one such object has been found. Much progress in our understanding of RR Lyrae stars has been made in recent years, however, and many results do have a bearing on the present problem. Several excellent reviews of current pulsation theory are available (see Iben 1971c, or Cox 1974a,b). I will therefore restrict my comments to those results bearing directly on choice of mode for RR Lyrae stars.

Type
Invited Papers
Copyright
Copyright © Reidel 1976

References

Albada, T. S. van 1969, Bull. Am. astr. Soc., 1, 366.Google Scholar
Albada, T. S. van and Baker, N. H. 1971a, Astrophys. J., 169, 311.CrossRefGoogle Scholar
Albada, T. S. van and Baker, N. H. 1971b, Bull. Am. astr. Soc, 3, 241.Google Scholar
Albada, T. S. van and Baker, N. H. 1973, Astrophys. J., 185, 477.CrossRefGoogle Scholar
Baker, N. H. 1965, Kleine Veröff. Remeis-Sternw., No. 40, p122.Google Scholar
Baker, N. H. and Sengbusch, K. von 1969, Mitt. astr. Gesellschaft, 32, 228.Google Scholar
Balázs, J. 1959, Kleine Verȍff. Remeis-Sternw., No. 27, p26.Google Scholar
Castor, J. I. 1970, Bull. Am. astr. Soc, 2, 302.Google Scholar
Castor, J. I. 1971, Astrophys. J., 166, 109.CrossRefGoogle Scholar
Christy, R. F. 1962, Astrophys. J., 136, 887.CrossRefGoogle Scholar
Christy, R. F. 1964, Rev. mod. Phys., 36, 555.CrossRefGoogle Scholar
Christy, R. F. 1966, Astrophys. J., 144, 108.CrossRefGoogle Scholar
Cogan, B. C. 1970, Astrophys. J., 162, 139.CrossRefGoogle Scholar
Cox, J. P. 1974a, Reports on Progress in Physics, 37, 563.Google Scholar
Cox, J. P. 1974b, Introductory Report, Liege Astrophysical Colloquium 19.Google Scholar
Cox, J. P., Castor, J. I. and King, D. S. 1972, Astrophys. J., 172, 423.CrossRefGoogle Scholar
Cox, J. P., King, D. S. and Stellingwerf, R. F. 1972, Astrophys. J., 171, 93.CrossRefGoogle Scholar
Detre, L. and Szeidl, B. 1973, in Variable Stars in Globular Clusters and Related Systems, Ed. Fernie, J. D., D. Reidel, Dordrecht, p31.CrossRefGoogle Scholar
Fitch, W. S. 1967, Astrophys. J., 148, 481.CrossRefGoogle Scholar
Fitch, W. S. 1968, in Non-Periodic Phenomena in Variable Stars, Academic Press, Budapest, p287.Google Scholar
Fitch, W. S. 1970, Astrophys. J., 161, 669.CrossRefGoogle Scholar
Fitch, W. S. and Szeidl, B. 1975, preprint.Google Scholar
Iben, I. Jr. 1971a, Astrophys. J., 166, 131.CrossRefGoogle Scholar
Iben, I. Jr. 1971b, Astrophys. J., 168, 225.CrossRefGoogle Scholar
Iben, I. Jr. 1971c, Pub. astr. Soc. Pacific, 83, 697.CrossRefGoogle Scholar
Iben, I. Jr. and Huchra, J. 1970, Astrophys. J., 162, L43.CrossRefGoogle Scholar
Iben, I. Jr. and Huchra, J. 1971, Astr. and Astrophys., 14, 293.Google Scholar
Kluyver, M. 1936, Bull. astr. Inst. Nederland, 7, 313.Google Scholar
Ledoux, P. 1951, Astrophys. J., 114, 373.CrossRefGoogle Scholar
Ledoux, P. 1963, in Star Evolution, Ed. Gratton, L., Academic Press, New York, p394.Google Scholar
Lucy, L. B. 1975, private communication.Google Scholar
Preston, G. W. 1964, A. Rev. Astr. Astrophys., 2, 46.CrossRefGoogle Scholar
Schwarzschild, M. 1940, Harvard Circ., No. 437.Google Scholar
Sengbusch, K. von 1973, Mitt. astr. Gesellschaft, No. 32, p228.Google Scholar
Spangenberg, W. H. 1974, Ph.D. Dissertation, Univ. of Colorado.Google Scholar
Stellingwerf, R. F. 1974, Astrophys. J., 192, 139.CrossRefGoogle Scholar
Stellingwerf, R. F. 1975a, Astrophys. J., 195, 441.CrossRefGoogle Scholar
Stellingwerf, R. F. 1975b, Astrophys. J., in press.Google Scholar
Stellingwerf, R. F. 1975c, in preparation.Google Scholar
Tuggle, R. S. and Iben, I. Jr. 1972, Astrophys. J., 178, 455.CrossRefGoogle Scholar
Tuggle, R. S. and Iben, I. Jr. 1973, Astrophys. J., 186, 593.CrossRefGoogle Scholar