Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-19T15:10:29.237Z Has data issue: false hasContentIssue false
  • English
  • Français

Eruptive Phenomena as a Source of the Observed Variations of Intrinsic Polarization in Long Period and T Tau Variables

Published online by Cambridge University Press:  12 April 2016

M. Sole  and
G. Strazzulla
M. Sole
Affiliation:
Department of Astronomy and Astrophysics, Charles University, Prague, Czechoslovakia
G. Strazzulla
Affiliation:
Department of Astronomy and Astrophysics, Charles University, Prague, Czechoslovakia

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The correlation between the rapid rise of intrinsic polarization, increasing U-B and enhanced equivalent width of Balmer, H and K emission lines is interpreted as a consequence of the activation of colour centres in circumstellar silicate dust by X/UV photons from flares. The temperature dependence of bleaching is discussed and the number of centres producing polarization changes is estimated.

Type
Session III: Observed Activity in Related Objects
Information
International Astronomical Union Colloquium , Volume 71: Activity in Red-Dwarf Stars , 1983 , pp. 515 - 518
Copyright
Copyright © Reidel 1983

References

REFERENCES

Greenberg, J.M. 1976, “Interstellar Dust”, in Cosmic Dust, ed. McDonnell, .Google Scholar
Grinin, V.P., Efimov, J.S., Krasnobabtsev, V.I., Shachovskaya, N.I., Shachovskoy, N.M., Shcherbakov, A.G., Zaitseva, G.V., Kolotolov, E.A., Shanin, G.I., Kiselev, N.N., Gyulaliev, C.G. and Salmanov, I.R. 1980, Peremennye Zvezdy 21, 247 (in russian).Google Scholar
Hulst, H.C. 1957, “Light Scattering by Small Particles”, Chapman and Hall.Google Scholar
Kats, A. and Stevels, J. 1956, Philips Res.Rep. 11, 115.Google Scholar
Redkina, N.P., Zubarev, A.V. and Chernova, G.P. 1981, Astron.Circ. USSR No. 1149 (in russian).Google Scholar
Rydgren, A.E., Schmelz, J.T. and Vrba, F.J. 1982, Astrophys.J. 256, 168.CrossRefGoogle Scholar
Shawl, S.J. 1975, Astron.J. 80, 602.CrossRefGoogle Scholar
Svatos, J. 1980, Bull.Astron.Inst.Czech. 31, 302.Google Scholar
Wing, R.F. 1979, “Mira Variables, an Informal Review”, Contr.Perkins Obs. Ser.II No. 80.Google Scholar
Worden, S.P., Schneeberger, T.J., Kuhn, J.R. and Africano, J.L. 1989 Astrophys.J. 244, 520.Google Scholar