Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-25T16:18:58.812Z Has data issue: false hasContentIssue false
  • English
  • Français

A Reprise of the Properties of the Exotic Eclipsing Binary RT Lacertae

Published online by Cambridge University Press:  12 April 2016

E.F. Milone
E.F. Milone*
Affiliation:
RAO, The University of Calgary, Physics & Astronomy Department, 2500 University Drive, NW, Calgary, AB, T2N IN4, Canada

Abstract

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 5.07-d eclipsing system RT Lacertae is at the interface of Algol systems and RS CVn-type systems. Three strong lines of evidence support its Algolid nature: gas streaming; the close proximity of the larger star to its Roche lobe; and evidence of circumstellar material. Supporting the stellar activity model are moderately successful, if non-unique, modeling of light curve anomalies and ‘migration waves’ with star spot models, and a general expectation based on similarities to RS CVn-like systems. Recent work by Lanza et al. (2002) provides support for the latter class of models, but other light curve analyses and non-optical passband studies are examined below and directions for the resolutions of the problems and paradoxes presented by the RT Lac system are provided. An observational campaign to acquire simultaneous spectroscopic, photometric, and polarimetric data is suggested.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 187: Exotic Stars as Challenges to Evolution , 2002 , pp. 65 - 71
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Applegate, J.H. 1992, ApJ, 385, 621 CrossRefGoogle Scholar
Barrado, D., Fernandez-Figueroa, M.J., Montesinos, B., & De Castro, E. 1994, A&A, 290, 137 Google Scholar
Eaton, J.A., & Hall, D.S. 1979, ApJ, 227, 907 CrossRefGoogle Scholar
Gunn, A.G., Mitrou, C.k., & Doyle, J.G. 1998, MNRAS, 296, 150 Google Scholar
Hall, D.S. 1968, IBVS, 259 Google Scholar
Hall, D.S. 1976, in IAU Coll. 29, Multiple Periodic Variable Stars, Part I, ed. Fitch, W.S. (Dordrecht: Reidel), 287 CrossRefGoogle Scholar
Hall, D.S. & Haslag, K.P. 1976, in IAU Coll. 29, Multiple Periodic Variable Stars, Part II, ed. Fitch, W.S. (Budapest: Academic Press), 331 Google Scholar
Himpel, K. 1936, AN, 261, 254 Google Scholar
Huenemoerder, D.P. 1985, AJ, 90, 499 CrossRefGoogle Scholar
Huenemoerder, D.P. 1988, PASP, 100, 600 CrossRefGoogle Scholar
Huenemoerder, D.P., & Barden, , AJ, 91, 583 CrossRefGoogle Scholar
Ibanoglu, S., Evren, S., Tas, G., Devlen, A., & Cakirh, O. 2001, A&A, 371, 626 Google Scholar
Johnson, H.L. 1966, ARA&A, 4, 193 Google Scholar
Joy, A.H. 1931, ApJ, 74, 101 CrossRefGoogle Scholar
Kallrath, J., & Milone, E.F. 1999, Eclipsing Binary Stars: Modeling and Analysis (New York: Springer-Verlag)CrossRefGoogle Scholar
Krat, W., & Nekrasova, S. 1936, Acta Astron. Ser. C, 2, 129 Google Scholar
Lanza, A.F., Catalano, S., Rodonò, M., Ibanoglu, C., Evren, S., Tas, G., Çakirli, Ö., & Devlen, A. 2002, A&A, 386, 583 Google Scholar
Lanza, A.F., Rodono, M., & Rosner, R. 1998, MNRAS, 296, 893 CrossRefGoogle Scholar
Luizet, M. 1910, Bull. Astronomique, 27, 302 Google Scholar
Luizet, M. 1915, Bull. Astronomique, 32, 68 Google Scholar
Milone, E.F. 1968, AJ, 73, 708 CrossRefGoogle Scholar
Milone, E.F. 1976, ApJS, 31, 93 CrossRefGoogle Scholar
Milone, E.F. 1977, AJ, 82, 998 CrossRefGoogle Scholar
Nijland, A.A. 1917, AN, 204, 65 Google Scholar
Nijland, A.A. 1920, AN, 211, 361 Google Scholar
Owen, F.N., & Gibson, D.M. 1978, AJ, 83, 1488 CrossRefGoogle Scholar
Popper, D.M. 1991, AJ, 101, 220 CrossRefGoogle Scholar
Popper, D.M. 1992, in IAU Symp. 151, Evolutionary Processes in Interacting Binary Stars, ed. Kondo, Y., Sistero, R.F., & Polidan, R.S. (Dordrecht: Kluwer), 395 CrossRefGoogle Scholar
Popper, D.M. 1996, ApJS, 106, 133 CrossRefGoogle Scholar
Torres, G., Neuhäuser, R., & Wichmann, R. 1998, AJ, 115, 2028 CrossRefGoogle Scholar
Tout, C.A., & Hall, D.S. 1991, MNRAS, 253, 9 CrossRefGoogle Scholar
Wachmann, A.A. 1935, AN, 255, 341 Google Scholar
Walter, F.M., & Bowyer, S. 1981, ApJS, 53, 815 Google Scholar