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1965 light curves of BV Dra and BW Dra

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Abstract

DifferentialB-band photometry of BV Dra and BW Dra, obtained in 1965, is presented. Times of primary and secondary minima are derived and combined with published times for a period study. Period variations are found in both binaries and magnetic cycles are proposed as an explanation. The cycle length is 19 years in BV Dra and 8 years in BWDra

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References

  • Applegate, J. H., Patterson, J. 1987,Astrophys. J.,322, L99.

    Article  ADS  Google Scholar 

  • Batten, A. H., Fletcher, J. M., MacCarthy, D. G. 1989,Publ. Dominion Astrophys. Obs.,17, 76

    Google Scholar 

  • Batten, A. H., Hardie, R. H. 1965,Astr. J.,70, 666.

    Article  ADS  Google Scholar 

  • Batten, A. H., Lu, W. 1986,Publ Astr. Soc. Pacific,98, 92.

    Article  ADS  Google Scholar 

  • Bolton, C. T. 1989, inIAU Coll. 107: Algols, Kluwer, Dordrecht,311.

    Google Scholar 

  • Breger, M. 1988,Publ. astr. Soc. Pacific,100, 751.

    Article  ADS  Google Scholar 

  • Dapergolas, A., Kontizas, E., Kontizas, M. 1989a,IBVS No. 3377.

  • Dapergolas, A., Kontizas, E., and Kontizas, M. 1989b, IBVSNo. 3382.

  • Gorda, S. Yu. 1986,IBVS No. 2906.

  • Hall, D. S. 1989,IAU Coll. No. 107,Algols, Kluwer, Dordrecht, 287.

    Google Scholar 

  • Hall, D.S. 1990, inActive Close Binaries, Eds C. Ibanoglu & I. Yavuz, Kluwer, Dordrecht, in press.

    Google Scholar 

  • Hall, D. S., Kreiner, J. M. 1980,Acta Astr.,30, 387.

    ADS  Google Scholar 

  • Kaluzny, J. and Rucinski, S. M. 1986,Astr. J.,92, 666.

    Article  ADS  Google Scholar 

  • Kreiner, J. M. 1977,IAU Coll. No.42, 373.

    ADS  Google Scholar 

  • Matese, J. J., Whitmire, D. P. 1983,Astr. Astrophys.,117, L7.

    ADS  Google Scholar 

  • Rovithis, P., Rovithis-Livaniou, H. 1982, IBVS No. 2137.

  • Rovithis, P., Rovithis-Livaniou, H.1987,Astr. Astrophys. Suppl,70, 63.

    ADS  Google Scholar 

  • Rucinski, S. M. 1985, inInteracting Binaries, Eds P. P. Eggleton & J. E. Pringle, D. Reidel, Dordrecht, p. 13.

  • Wood, D. B. 1971,Bull. Am astr. Soc,2, 357.

    Google Scholar 

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Authors and Affiliations

  1. Dyer Observatory, Vanderbilt University, 37235, Nashville, Tennessee, USA

    Robert H. Hardie

  2. Center of Excellence in Information Systems, Tennessee StateUniversity, 37201, Nashville, Tennessee, USA

    Douglas S. Hall

Authors
  1. Robert H. Hardie
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  2. Douglas S. Hall
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On leave from Dyer Observatory, Vanderbilt University, Nashville, Tennessee.

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Hardie, R.H., Hall, D.S. 1965 light curves of BV Dra and BW Dra. Journal of Astrophysics and Astronomy 11, 265–270 (1990). https://doi.org/10.1007/BF02709275

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  • DOI: https://doi.org/10.1007/BF02709275

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