Skip to main content
SpringerLink
Log in

Microvariability of line profiles in the spectra of OB stars: III. The supergiant ρ LEO

  • Published:
Astronomy Reports Aims and scope Submit manuscript

Abstract

We observed the bright supergiant ρ Leo (B1 lab) in January–February 2004 using the 6-m telescope of the Special Astrophysical Observatory (Russia) and the 1.8-m telescope of the Bohyunsan Optical Astronomy Observatory (South Korea). 47 spectra with high time resolution (4–10 min), signal-to-noise ratios 300–1000, and spectral resolutions 45 000–60 000 were obtained. We detected variability in the HeI, SiII, SiIII, and NII line profiles, which may be due to rotational modulation of the profiles and photospheric pulsations of ρ Leo. The possible influence of the stellar magnetic field on the line-profile variations is discussed.

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

  1. L. Kaper, H. F. Henrichs, A. W. Fullerton, H. Ando, et al., Astron. Astrophys. 327, 281 (1997).

    ADS  Google Scholar 

  2. L. Kaper, H. F. Henrichs, J. S. Nichols, J. H. Telting, et al., Astron. Astrophys. 344, 231 (1999).

    ADS  Google Scholar 

  3. A. Kaufer, O. Stahl, B. Wolf, et al., Astron. Astrophys. 305, 887 (1996).

    ADS  Google Scholar 

  4. S. Lépine, A. F. J. Moffat, Astrophys. J. 514, 909 (1999).

    Article  ADS  Google Scholar 

  5. J. A. de Jong, H. F. Henrichs, S. Schrijvers, et al., Astron. Astrophys. 345, 172 (1999).

    ADS  Google Scholar 

  6. J. A. de Jong, H. F. Henrichs, L. Kaper, et al., Astron. Astrophys. 368, 601 (2001).

    Article  ADS  Google Scholar 

  7. S. M. Kahn, M. A. Leutenegger, J. Cottam, et al., Astron. Astrophys. 365, 365 (2001).

    Article  Google Scholar 

  8. N. A. Miller, J. P. Cassinelli, J. J. MacFarlane, D. H. Cohen, Astroph. J. 499, L195 (2002).

    Google Scholar 

  9. A. F. Kholtygin, D. N. Monin, A. E. Surkov, and S. N. Fabrika, Pis’ma Astron. Zh. 29, 208 (2003) [Astron. Lett. 29, 175 (2003)].

    Google Scholar 

  10. J.-F. Donati, G. A. Wade, J. Babel, et al., Mon. Not. R. Astron. Soc. 326, 1265 (2001).

    Article  ADS  Google Scholar 

  11. J.-F. Donati, J. Babel, T. J. Harries, et al., Mon. Not. R. Astron. Soc. 333, 55 (2002).

    Article  ADS  Google Scholar 

  12. J.-F. Donati, I. D. Howarth, J.-C. Bouret, et al., Mon. Not. R. Astron. Soc. 365, L6 (2006).

    Article  ADS  Google Scholar 

  13. C. Neiner, A. M. Hubert, A. M. Floquet, et al., Astron. Astrophys. 388, 899 (2002).

    Article  ADS  Google Scholar 

  14. A. F. Kholtygin, J. Brown, S. Fabrika, and A. Surkov, in Magnetic Stars, Ed. by Yu. V. Glagolevskij, D. O. Kydryavtsev, and I. I. Romanyuk (SAO RAN, 2004), p. 250.

  15. A. F. Kholtygin, G. Galazutdinov, T. E. Burlakov, et al., Astron. Zh. 83, 252 (2006) [Astron. Rep. 50, 220 (2006)].

    Google Scholar 

  16. A. F. Kholtygin, T. E. Burlakova, S. N. Fabrika, et al., Astron. Rep. 50, 887 (2006).

    Article  ADS  Google Scholar 

  17. T. Morel, S. V. Marchenko, A. K. Pati, et al., Mon. Not. R. Astron. Soc. 351, 552 (2004).

    Article  ADS  Google Scholar 

  18. D. R. Gies and D. L. Lambert, Astrophys. J. 387, 673 (1992).

    Article  ADS  Google Scholar 

  19. P. A. Crowther, D. J. Lennon, and N. R. Walborn, Astron. Astrophys. 446, 279 (2006).

    Article  ADS  Google Scholar 

  20. A. A. Pamyatnykh, Acta Astron. 49, 189 (1999).

    Google Scholar 

  21. V. E. Panchuk, N. E. Piskunov, V. G. Klochkova, et al., Preprint No. 169, SAO RAN (Special Astrophysical Observatory, Russian Academy of Sciences, Nizhniĭ Arkhyz, 2002).

  22. V. E. Panchuk, V. G. Klochkova, and I. D. Naidenov, Preprint No. 179, SAO RAN (Special Astrophysical Observatory, Russian Academy of Sciences, Nizhniĭ Arkhyz, 2003).

  23. I. D. Howarth, K. W. Siebert, G. A. J. Hussain, and R. K. Prinja, Mon. Not. R. Astron. Soc. 284, 265 (1997).

    ADS  Google Scholar 

  24. SIMBAD Astronomical Database (Strasbourg Astronomical Data Center), http://simbad.u-srrasbg.fr/Simbad/.

  25. P. Ballester, Astron. Astrophys. 286, 1011 (1994).

    ADS  Google Scholar 

  26. V. S. Shergin, A. Yu. Kniazev, and V. A. Lipovetsky, Astron. Nachr. 317, 95 (1996).

    Article  ADS  Google Scholar 

  27. Bohyunsan Echelle Spectrograph (Bohyunsan Optical Astronomy Observatory, Korea), http://www.boao.re.kr/BOES/BOESppt3.files/frame.htm.

  28. G. A. Galazutdinov, Preprint No. 92, SAO RAN (Special Astrophysical Observatory, Russian Academy of Sciences, Nizhniĭ Arkhyz, 1992).

  29. M. Asplund, N. Grevesse, and A. J. Sauval, in Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis, Ed. by F. Bash and T. Barnes (San Francisco: Astron. Soc. Pac.), Astron. Soc. Pac. Conf. Ser. 336, p. astro/ph/0410214.

  30. Th. Rivinius, D. Baade, and S. Stefl, Astron. Astrophys. 411, 229 (2003).

    Article  ADS  Google Scholar 

  31. D. H. Roberts, J. Lehar, and J. W. Dreher, Astron. J. 93, 968 (1987).

    Article  ADS  Google Scholar 

  32. V. V. Vityazev, Analysis of Irregular Dynamic Series (St. Pterburg. Gos. Univ., St. Petersburg, 2001) [in Russian].

    Google Scholar 

  33. A. F. Kholtygin and A. B. Shneiwais, Astrofizika 48, 87 (2005) [Astrophys. 48, 68 (2005)].

    Google Scholar 

  34. J. H. Telting and C. Schrijvers, Astron. Astrophys., Suppl. Ser. 317, 723 (1997).

    ADS  Google Scholar 

  35. V. D. Bychkov, L. V. Bychkova, and J. Madej, Astron. Astrophys. 407, 631B (2003).

    Article  ADS  Google Scholar 

  36. S. P. Owocki and S. R. Cranmer, in Radial and Nonradial Pulsations as Probes of Stellar Physics, Ed. by C. Aerts, T. R. Bedding, and J. Christensen-Dalsgaard, Astron. Soc. Pac. Conf. Ser. 259, 512 (1988).

Download references

Author information

Authors and Affiliations

  1. Sobolev Astronomical Institute, St. Petersburg State University, Bibliotechnaya pl. 2, Petrodvorets, 198904, Russia

    A. F. Kholtygin

  2. Special Astrophysical Observatory, Russian Academy of Sciences, Nizhniĭ Arkhyz, Karachaĭ-Cherkessian Republic, 357147, Russia

    S. N. Fabrika, T. E. Burlakova, G. G. Valyavin, G. A. Chuntonov, D. O. Kudryavtsev, M. V. Yushkin & G. A. Galazutdinov

  3. Bohyunsan Optical Astronomy Observatory, Jaceon P.O.B., Young-chun, Kyung-pook, 770-820, South Korea

    T. E. Burlakova, G. G. Valyavin & D. Kang

  4. Korea Astronomy and Space Science Institute, Daejeon, Korea

    G. A. Galazutdinov

Authors
  1. A. F. Kholtygin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. N. Fabrika
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. T. E. Burlakova
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. G. G. Valyavin
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. G. A. Chuntonov
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. D. O. Kudryavtsev
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. D. Kang
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. M. V. Yushkin
    View author publications

    You can also search for this author in PubMed Google Scholar

  9. G. A. Galazutdinov
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Original Russian Text © A.F. Kholtygin, S.N. Fabrika, T.E. Burlakova, G.G. Valyavin, G.A. Chuntonov, D.O. Kudryavtsev, D. Kang, M.V. Yushkin, G.A. Galazutdinov, 2007, published in Astronomicheskiĭ Zhurnal, 2007, Vol. 84, No. 11, pp. 1016–1028.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kholtygin, A.F., Fabrika, S.N., Burlakova, T.E. et al. Microvariability of line profiles in the spectra of OB stars: III. The supergiant ρ LEO. Astron. Rep. 51, 920–931 (2007). https://doi.org/10.1134/S1063772907110054

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1063772907110054

PACS numbers

Search

Navigation