Advertisement

MV Lyr: Transition from Low to High Brightness State

  • Elena Pavlenko
  • Kirill Antoniuk
  • Sergei Yu. Shugarov
  • Nataly A. Katysheva
  • Lenie Muzhdabaeva
  • Vyacheslav Mikhajlov

Abstract

We present results of multicolour photometry of the nova-like binary MV Lyr in the years 2002–2003, corresponding to the transition of the star from its low (V = 17.8) to high (V = 12.3) brightness state. The transition lasted at most 200 days. During the first ∼50 days MV Lyr brightened at the rate 0.06 mag/day, and during the next ∼150 days at the rate 0.01 mag/day. The brightening was accompanied by a blue shift from 0.45 to 0.05 in VR, interpreted as an increase of the accretion disk contribution to the total light. During the transition MV Lyr displayed well-known ‘quasi-orbital’ light variations and fast quasi-periodic oscillations with a typical time scale of tens of minutes.

Keywords

stars binaries MV Lyr 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Andronov, I.L. and Antonyuk, K.: 2004, in astrophysics of Cataclysmic Variables and Related Objects, Hameury, H.M. and Lasota, J.P. (eds.), in press.Google Scholar
  2. Andronov, I.L., Borodina, I.G., Chinarova L.L. et al.: 1992, Soobsch. Spets. Astroph. Obs. 69, 125.Google Scholar
  3. Borisov, G.V.: 1992, A&A 261, 154.Google Scholar
  4. Hoard, D.W., Linnell, A.P., Szkody, P. et al.: 2004, ApJ 604, 346.CrossRefGoogle Scholar
  5. Katysheva, N.A., et al.: 2000, Kinemat. Phys. Celes. Bodies 3, 393.Google Scholar
  6. Korhonen, T. and Piirola V.: 1984, ESO Messenger no.38, p. 20.Google Scholar
  7. Piirola, V.: 1988, in Polarized Radiation of Circumstellar Origin, Coyne, G.V., Magalhaes, A.M., Moffat, A.F.J., Schulte-Ladbeck, R.E., Tapia, S., Wickramasinghe, D.T. (eds.), Vatican Observatory, p. 261.Google Scholar
  8. Pavlenko, E.P.: 1996, Odessa Astronom. Publ. 9, 38.Google Scholar
  9. Pavlenko, E.P. and Shugarov S.Yu.: 1999, A&A 343, 909.Google Scholar
  10. Schneider, D.P., Young, P. and Shestman, S.A.: 1981, ApJ 245, 644.CrossRefGoogle Scholar
  11. Skillman, D.R., Patterson, J. and Thorstensen, J.R.: 1995, PASP 107, 545.CrossRefGoogle Scholar

Copyright information

© Springer 2005

Authors and Affiliations

  • Elena Pavlenko
    • 1
  • Kirill Antoniuk
    • 1
  • Sergei Yu. Shugarov
    • 2
  • Nataly A. Katysheva
    • 2
  • Lenie Muzhdabaeva
    • 3
  • Vyacheslav Mikhajlov
    • 4
  1. 1.Crimean Astrophysical Observatory, NauchnyCrimeaUkraine
  2. 2.Sternberg State Astronomical InstituteMoscowRussia
  3. 3.Tavrichesky National UniversityCrimeaUkraine
  4. 4.Sinmferopol Society of Amator AstronomersUkraine

Personalised recommendations