Abstract
ST Carinae is an eclipsing binary with a period of 0 d. 90165 which is believed to consist of an A0V primary and a secondary of type F5-8IV. About 900 observations inUBV, made by Somerville in 1963 but unreduced at that time, are presented. The Wood model is used to obtain orbital elements, and four different solutions of the light curves are presented. These are also computed with the solutions obtained by previous investigators of this system. The solutions indicate a reasonably consistent geometry, but there is still substantial uncertainty with regard to the mass-ratio and dynamical status of ST Car. The possibility exists that ST Car is in the initial and rapid stage of mass exchange in which the primary component fills its Roche lobe and is losing mass to its companion. The two components of ST Car appear to be of normal dimensions, but additional work is needed to clarify the exact status of this system.
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References
Al-Naimiy, H. A.: 1978,Astrophys. Space Sci. 53, 181.
Chambliss, C. R.: 1983,Astrophys. Space Sci. 89, 15.
Chambliss, C. R.: 1984,Astrophys. Space Sci. 105, 205.
Claria, J. J. and Lapasset, E.: 1981,Inf. Bull. Var. Stars, No. 2049.
Gaposchkin, S.: 1953,Ann. Astron. Obs. Harvard Coll. 113, 68.
Giuricin, G., Mardirossian, F., and Mazzetti, M.: 1983,Monthly Notices Roy. Astron. Soc. 206, 307.
Hertzsprung, E.: 1925,Bull. Astron. Inst. Neth. 2, 209.
Johnson, H. L.: 1963, in K. Aa. Strand (ed.),Basic Astronomical Data, Univ. of Chicago Press, Chicago, p. 204.
Kallrath, J. and Linnell, A. P.: 1987,Astrophys. J. 313, 346.
Kitamura, M. and Nakamura, Y.: 1986,Ann. Tokyo Astron. Obs. 21, Nos. 2 and 3.
Koch, R. H., Plavec, M., and Wood, F. B.: 1970,Univ. of Pennsylvania Astron. Ser. 11.
Lapasset, E. and Claria, J. J.: 1982,Publ. Astron. Soc. Pacific 94, 524.
Leavitt, H. S.: 1908,Ann. Astron. Obs. Harvard Coll. 60, 109.
Paczynski, B.: 1970, in K. Gyldenkerne and R. M. West (eds.),Mass Loss and Evolution in Close Binaries, Copenhagen, p. 139.
Pickering, E. C.: 1906, Harvard Circ. No. 122.
Plavec, M. and Kratochvíl, P.: 1964,Bull. Astron. Inst. Czech. 15, 165.
Popper, D. M.: 1980,Ann. Rev. Astron. Astrophys. 18, 115.
Russell, H. N. and Merrill, J. E.: 1952,Contrib. Princeton Univ. Obs., No. 26.
Savedoff, M. P.: 1951,Astron. J. 56, 1.
Shapley, H.: 1915,Contrib. Princeton Univ. Obs., No. 3.
Wilson, R. E. and Devinney, E. J.: 1971,Astrophys. J. 166, 605.
Wood, F. B.: 1959,Astron. J. 64, 56.
Wood, D. B.: 1972, NASA Publ. X-110-72-473.
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Chambliss, C.R., Detterline, P.K. A new photometric analysis of the eclipsing binary system ST Carinae. Astrophys Space Sci 140, 237–253 (1988). https://doi.org/10.1007/BF00638983
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DOI: https://doi.org/10.1007/BF00638983