Hostname: page-component-5d59c44645-dknvm Total loading time: 0 Render date: 2024-03-02T23:19:30.048Z Has data issue: false hasContentIssue false

Chromospheres, activity and magnetic fields

Published online by Cambridge University Press:  25 May 2016

Yu. N. Gnedin*
Affiliation:
The Central Astronomical Observatory at Pulkovo, 196140, St. Petersburg, Russia

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.

This brief review presents the current state of observations of stellar activity effects including the fluxes of chromospheric emission lines: CaII H+K, MgII h+k, SiII 1812 Å multiplet, CIV, as well as radio and X-ray fluxes versus B-V colours and luminosity classes, rotation periods, Rossby number and especially versus the mean magnetic flux density 〈fB〉. Results of stellar magnetic field measurements are presented.

Type
Stellar Atmospheres
Copyright
Copyright © Kluwer 1997 

References

Ayres, T.R. et al. 1993, ApJS Google Scholar
Basri, G.S. 1987, ApJ, 316, 377 CrossRefGoogle Scholar
Bouvier, J. 1990, AJ, 99, 946 Google Scholar
Giampapa, M.S. 1987, in Cool Stars, Stellar Systems and the Sun, eds. Linsky, J.L. & Stencel, R.E. (Berlin: Springer -Verlag), p.236 CrossRefGoogle Scholar
Gnedin, Yu.N., Red'kina, N.P. 1984, Sov. Astron. Lett., 10, 255 Google Scholar
Gnedin, Yu.N., Silant'ev, N.A. 1984, Ap&SS, 102, 375 Google Scholar
Haish, B., Bowyer, S. & Malina, R., 1994, 8th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, ed. by Caillault, , ASP Conf. Ser., p.3.Google Scholar
Johns-Krull, Ch.M. & Valenti, J.A. 1996, ApJ, 450, L95 Google Scholar
Kemp, J.C., Henson, G.D., Krauss, D.J., Dunaway, M.K. 1985, Bull. Am. Astron. Soc., 19, 752 Google Scholar
Kim, Y-C & Demarque, P. 1996, ApJ, 457, 340 Google Scholar
Linsky, J.L. & Saar, S.H. 1987, in Cool Stars, Stellar Systems and the Sun, eds. Linsky, J.L. and Stencel, R.E. (Berlin: Springer - Verlag), p.44 Google Scholar
Maheswarand, M. & Cassinelli, J.P. 1988, ApJ, 335, 931 CrossRefGoogle Scholar
Marcy, G.M. 1984, ApJ, 276, 286 Google Scholar
Michaud, G. & Proffitt, C.R. 1993, in Proc. IAU Colloq. 137, Inside the Stars, eds. Baglin, A. and Weiss, W. W. (San Francisco: ASP), 246 Google Scholar
Nadeau, R., Bastien, P. 1986, ApJ, 305, L5 Google Scholar
Saar, S.H. 1987, in Cool Stars, Stellar Systems and the Sun, eds. Linsky, J.L. and Stencel, R.E. (Berlin: Springer - Verlag), p. 10 Google Scholar
Saar, S.H. 1988, ApJ, 276, 286 Google Scholar
Schrijver, C.J., Cote, J., Zwaan, C., Saar, S.H. 1988, ApJ., 337, 964 Google Scholar
Seaquist, E.R. 1995, Rep. Progr. Phys., 3.Google Scholar
Skumanich, A., Smythe, G., Frazier, E.W. 1975, ApJ., 200, 747 Google Scholar
Underhill, A.B. 1984, ApJ, 276, 583 Google Scholar
Vilhu, O. & Moss, D. 1986, AJ, 92, 1178 CrossRefGoogle Scholar
Vilhu, O. & Walter, F.M. 1987, ApJ, 321, 958 Google Scholar
White, R.L. 1985, ApJ, 289, 698 Google Scholar