Skip to main content
SpringerLink
Log in

The Algol-type eclipsing binaries RW CrB and VZ Leo: new RI photometric study and search for pulsations

  • Original Article
  • Published:
Astrophysics and Space Science Aims and scope Submit manuscript

Abstract

In this study we present the new R and I light curve solutions for the eclipsing binary systems RW CrB and VZ Leo, which for VZ Leo is the first one in the literature. Our new observations have been analyzed using the Wilson-Devinney code from which new geometric and photometric elements are derived. The geometry of both stars is that of a semi-detached binary system where the secondary component fills its Roche lobe while the primary component is well inside. In the case of RW CrB, asymmetry in the light curve was explained by a spot model. The orbital period changes of both systems were studied and the results indicated a period decrease which can be explained by angular momentum loss. We also investigated the possibility of pulsations of the primary components since these systems are mentioned as candidates of δ Sct type pulsation. However, a time-series analysis of the residual curves in the filter I does not indicate any evidence of periodic light variation for both systems. Finally, we compared the results obtained for both binary stars to those of similar systems.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Arentoft, T., De Ridder, J., Grundahl, F., Glowienka, L., Waelkens, C., Dupret, M.-A., Grigahcène, A., Lefever, K., Jensen, H.R., Reyniers, M., Frandsen, S., Kjeldsen, H.: Astron. Astrophys. 465, 965 (2007)

    Article  ADS  Google Scholar 

  • Binnendijk, L.: Publ. Astron. Soc. Pac. 94, 926 (1972)

    Google Scholar 

  • Brancewicz, H.K., Dworak, T.Z.: Acta Astron. 30, 501 (1980)

    ADS  Google Scholar 

  • Breger, M.: Balt. Astron. 9, 149 (2000)

    ADS  Google Scholar 

  • Breger, M., Stich, J., Garrido, R., Martin, B., Jiang, S.Y., Li, Z.P., Hube, D.P., Ostermann, W., Paparo, M., Scheck, M.: Astron. Astrophys. 271, 482 (1993)

    ADS  Google Scholar 

  • Carr, R.B.: Goodsell Obs. Publ. 16 (1971)

  • Derekas, A., Kiss, L.L., Szabo, G.M., Varadi, M.: Inf. Bull. Var. Stars 5479 (2003)

  • Hoffmeister, C.: Astron. Nachr. 201, 879 (1915)

    Google Scholar 

  • Kim, S.-L., Lee, J.W., Kwon, S.-G., Youn, J.-H., Mkrtichian, D.E., Kim, C.: Astron. Astrophys. 405, 231 (2003)

    Article  ADS  Google Scholar 

  • Kwee, K.K., van Woerden, H.: Bull. Astron. Inst. Neth. 12, 327 (1956)

    ADS  Google Scholar 

  • Lehmann, H., Mkrtichian, D.E.: Astron. Astrophys. 480, 247 (2008)

    Article  ADS  Google Scholar 

  • Lenz, P., Breger, M.: Commun. Asteroseismol. 146, 53 (2005)

    Article  ADS  Google Scholar 

  • McLaughlin, D.B.: Astron. J. 39, 85 (1929)

    Article  ADS  Google Scholar 

  • Milone, E.F., Wesselink, A.J.: Inf. Bull. Var. Stars 611 (1972)

  • Mkrtichian, D.E., Kusakin, A.V., Gamarova, A.Yu., Nazarenko, V.: Astron. Soc. Pac. Conf. Ser. 259, 96 (2002)

    ADS  Google Scholar 

  • Mkrtichian, D.E., Kusakin, A.V., Rodríguez, E., Gamarova, A.Yu., Kim, C., Kim, S.-L., Lee, J.W., Youn, J.-H., Kang, Y.W., Olson, E.C., Grankin, K.: Astron. Astrophys. 419, 1015 (2004)

    Article  ADS  Google Scholar 

  • Mkrtichian, D.E., Kim, S.-L., Rodríguez, E., Olson, E.C., Nazarenko, V., Gamarova, A.Yu., Kusakin, A.V., Lehmann, H., Lee, J.W., Kang, Y.W.: Astron. Soc. Pac. Conf. Ser. 370, 194 (2007)

    ADS  Google Scholar 

  • Moon, T.T., Dworetsky, M.M.: Mon. Not. R. Astron. Soc. 217, 305 (1985)

    ADS  Google Scholar 

  • Niarchos, P.G., Manimanis, V.N.: Astrophys. Space Sci. Libr. 298, 151 (2002)

    ADS  Google Scholar 

  • Pierce, N.I.: Astron. J. 48, 121 (1939)

    Article  ADS  Google Scholar 

  • Popper, D.M.: Ann. Rev. Astron. Astrophys. 18, 115 (1980)

    Article  ADS  Google Scholar 

  • Prša, A., Zwitter, T.: Astrophys. J. 628, 426 (2005)

    Article  ADS  Google Scholar 

  • Qian, S.: Astron. J. 119, 901 (2000)

    Article  ADS  Google Scholar 

  • Qian, S.: Astron. J. 121, 1614 (2001)

    Article  ADS  Google Scholar 

  • Rodríguez, E., García, J.M., Costa, V., et al.: Commun. Asteroseismol. 150, 63 (2007)

    Article  ADS  Google Scholar 

  • Rucinski, S.M.: Acta Astron. 24, 119 (1974)

    ADS  Google Scholar 

  • Sandig, H.U.: Astron. Nachr. 275, 37 (1947)

    Article  ADS  Google Scholar 

  • Sanford, R.F.: Astrophys. J. 79, 89 (1934)

    Article  ADS  Google Scholar 

  • Soydugan, E., Soydugan, F., Demircan, O., İbanoglu, C.: Astron. J. 370, 2013 (2006)

    ADS  Google Scholar 

  • Todoran, I.: Inf. Bull. Var. Stars 636 (1972)

  • van Hamme, W.: Astron. J. 106, 2096 (1993)

    Article  ADS  Google Scholar 

  • Wilson, R.E.: Astrophys. J. 234, 1054 (1979)

    Article  ADS  Google Scholar 

  • Wilson, R.E.: Astrophys. J. 356, 613 (1990)

    Article  ADS  Google Scholar 

  • Wilson, R.E., Devinney, E.J.: Astrophys. J. 166, 605 (1972)

    Article  ADS  Google Scholar 

  • Wilson, R.E., Van Hamme, W.: Computing Binary Star Observables (2003)

Download references

Author information

Authors and Affiliations

  1. Department of Physics, Onsekiz Mart University of Çanakkale, Çanakkale, Turkey

    B. Ulaş

  2. Department of Astrophysics, Astronomy and Mechanics, National and Kapodistrian University of Athens, Athens, Greece

    P. G. Niarchos & A. Liakos

  3. Royal Observatory of Belgium, Ringlaan 3, 1180, Brussels, Belgium

    P. Lampens

Authors
  1. B. Ulaş
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. G. Niarchos
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. P. Lampens
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. Liakos
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to B. Ulaş.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ulaş, B., Niarchos, P.G., Lampens, P. et al. The Algol-type eclipsing binaries RW CrB and VZ Leo: new RI photometric study and search for pulsations. Astrophys Space Sci 319, 55–62 (2009). https://doi.org/10.1007/s10509-008-9945-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10509-008-9945-x

Keywords

Search

Navigation