Advertisement

Possible Periodic Components in the Flickering of CH Cyg and MWC 560

  • M. Mikolajewski
  • T. Tomov
  • A. Dapergolas
  • Y. Bellas-Velidis
Part of the Astrophysics and Space Science Library book series (ASSL, volume 208)

Abstract

CH Cyg and MWC 560 are very peculiar symbiotic binaries consisting of an M giant and a white dwarf companion. The systems have many features in common. In particular, both show occasional eruptions with sub-Eddington luminosity, followed by the appearance of high-velocity jets. Recently, Mikolajewski, Mikolajewska & Tomov (1995) have proposed a model of activity for these systems with a rapidly rotating magnetic white dwarf accreting from the M giant’s wind. Two states of activity are possible: propeller and accretor. Although, both stars spend most time in the propeller state, occasional propeller-accretor (and vice versa) transitions may give rise to bipolar outflows and rapid jet formations. Mikolajewski et al. (1995) also proposed to distinguish a new subclass of interacting binaries — propeller stars — with CH Cyg and MWC 560 being the prototypes.

Keywords

White Dwarf Periodic Component Compact Star Magnetic Rotator Coherent Oscillation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Hoard, D.W., 1993, PASP, 105, 1232ADSCrossRefGoogle Scholar
  2. Michalitsianos, A.G., Perez, M., Shore, N., 1993, Ap. J., 259, 244Google Scholar
  3. Mikolajewski, M., Mikolajewska, J., Tomov, T., et al., 1990, Acta Astron., 40, 129ADSGoogle Scholar
  4. Mikolajewski, M., Mikolajewska, J., Tomov, T., 1995, in “Compact Stars in Binaries”, Proc. IAU Symp. 165, J. van Paradijs et al. (eds.), in pressGoogle Scholar
  5. Tomov, T., Kolev, D., Ivanov, M., et al., 1996, A&A, in pressGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • M. Mikolajewski
    • 1
  • T. Tomov
    • 2
  • A. Dapergolas
    • 3
  • Y. Bellas-Velidis
    • 3
  1. 1.Nicolaus Copernicus UniversityTorunPoland
  2. 2.National Astronomical Observatory RozhenBulgaria
  3. 3.National Observatory of AthensGreece

Personalised recommendations