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Some properties of the He-w star HD 35502

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This is a preliminary study of the star HD 35502. Its magnetic field has been measured in different phases of its period. Preliminary values of the magnetic field parameters have been obtained based on a central quadrupole model. The effective magnetic field Be varies over 0-5000 G, the average surface magnetic field ranges over 6300-6700 G, the field at the poles is Bp=7000 G, and the angle between the quadrupole axis and the axis of rotation is β = 80º. As a first approximation, the surface helium is concentrated around the (negative) pole and for τ > 1 its abundance is reduced by approximately 2-4 dex, which confirms the hypothesis of helium diffusion under the action of gravitation and wind in a stable atmosphere. The chemical elements Si and Cr are concentrated in four spots on the magnetic equator between the magnetic poles, or in a ring coincident with the magnetic equator; precisely which is not clear at present.

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References

  1. Yu. V. Glagolevskij, A. V. Shavrina, J. Silvester, et al., Astrofiz. Byull. 64, 170 (2009).

    Google Scholar 

  2. P. S. Osmer and D. M. Peterson, Astrophys. J. 187, 117 (1973).

    Article  ADS  Google Scholar 

  3. S. Vauclair, Astron. Astrophys. 45, 233 (1975).

    ADS  Google Scholar 

  4. S. Vauclair, J. Hardorp, and D. M. Pederson, Astrophys. J. 227, 526 (1979).

    Article  ADS  Google Scholar 

  5. G. Alecian and S. Vauclair, Astron. Astrophys. 101, 16 (1981).

    ADS  Google Scholar 

  6. C. Megessier, Astron. Astrophys. 138, 267 (1984).

    ADS  Google Scholar 

  7. V. D. Bychkov, L. V. Bychkova, and J. Madej, Astron. Astrophys. 430, 1143 (2005).

    Article  ADS  Google Scholar 

  8. D. Bohlender, CFHT Inform. Bulletin, No. 27, 21 (1992).

  9. G. Catanzaro and F. Leone, Astron. Nachr. 324, 445 (2003).

    Article  ADS  Google Scholar 

  10. E. Horch, W. F. Altena, T. M. Girard et al., Astron. J. 121, 1597 (2001).

    Article  ADS  Google Scholar 

  11. Yu. V. Glagolevskij, Bull. SAO 33, 33 (2002).

    Google Scholar 

  12. J. D. Landstreet, S. Bagnulo, V. Andretta et al., Astron. Astrophys. 470, 685 (2007).

    Article  ADS  Google Scholar 

  13. R. K. Gulati, M. L. Malagnini, and C. Morossi, Astron. Astrophys. Suppl. Ser. 80, 73 (1989).

    ADS  Google Scholar 

  14. L. E. Pasinetti Fracassini, L. Pastori, S. Covino, and A. Pozzi, Astron. Astrophys. 367, 521 (2001).

    Article  ADS  Google Scholar 

  15. R. L. Kurucz, Data Bank - CD-ROM NN 1-22 (1993-1994).

  16. V. Tsymbal, in: S. J. Adelman, F. Kupka, and W. W. Weiss, ed., Model Atmospheres and Spectrum Synthesis, ASP Conference Series 108, 198 (1996).

  17. S. J. Khan, J. Quant. Spectrosc. Radiat. Transfer. 88, 71 (2004).

    Article  ADS  Google Scholar 

  18. G.A.Countonov, in Magnetic stars, ed. Yu.V.Glagolevskij , D.O.Kudryavtsev, I.I.Romanyuk, Nizhnij Arkhyz (2004), p.286.

  19. E.Gerth and Yu.V.Glagolevskij, in Physics of Magnetic stars, ed. D.O.Kudryavtsev and I.I.Romanyuk, Nizhnij Arkhyz (2007), p.148.

  20. Yu. V. Glagolevskij and E. Gerth, Astrofiz. Byull. 51, 84 (2001).

    Google Scholar 

  21. D.Monin and F.Leblanc, in Physics of Magnetic stars, ed. D.O.Kudryavtsev and I.I.Romanyuk, Nizhnij Arkhyz (2007), p.360.

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Authors and Affiliations

  1. Special Astrophysical Observatory, Russian Academy of Sciences, Stavropol, Russia

    Yu. V. Glagolevskij & G. A. Chountonov

  2. Main Astronomical Observatory, National Academy of Sciences of Ukraine, Kiev, Ukraine

    A. V. Shavrina & Ya. V. Pavlenko

Authors
  1. Yu. V. Glagolevskij
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  2. G. A. Chountonov
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  3. A. V. Shavrina
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  4. Ya. V. Pavlenko
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Correspondence to Yu. V. Glagolevskij.

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Translated from Astrofizika, Vol. 53, No. 1, pp. 157-172 (February 2010).

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Glagolevskij, Y.V., Chountonov, G.A., Shavrina, A.V. et al. Some properties of the He-w star HD 35502. Astrophysics 53, 133–146 (2010). https://doi.org/10.1007/s10511-010-9106-0

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  • DOI: https://doi.org/10.1007/s10511-010-9106-0

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