Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-08T00:38:16.466Z Has data issue: false hasContentIssue false
  • English
  • Français

Spot Modelling of AB Dor, 1980-1991

Published online by Cambridge University Press:  25 April 2016

G.J. Anders ,
D.W. Coates  and
K. Thompson
G.J. Anders
Affiliation:
Department of Physics, Monash University, Clayton, VIC 3168
D.W. Coates
Affiliation:
Department of Physics, Monash University, Clayton, VIC 3168
K. Thompson
Affiliation:
Department of Physics, Monash University, Clayton, VIC 3168
Get access Rights & Permissions [Opens in a new window]

Abstract

Some results of spot modelling for 18 light curves of AB Dor are presented, covering the period 1980-1992. Using the technique of Budding and Zeilik (1987) to determine spot parameters, it is shown that photospheric spots on this star tend to form in one of two longitude belts separated by approximately 180 degrees. This can be compared to the similar active longitudes proposed by Zeilik et al.(1988, 1989) for the RS CVn stars SV Cam and RT And. The change in overall light level of AB Dor over the past 12 years indicates the possibility of a solar-type spot cycle although more photometric observations will be needed to confirm this.

Type
Galactic and Stellar
Information
Publications of the Astronomical Society of Australia , Volume 10 , Issue 1 , 1992 , pp. 33 - 37
Copyright
Copyright © Astronomical Society of Australia 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Al-Naimiy, H., 1978, Astrophys. and Space Sci., 53, 181.CrossRefGoogle Scholar
Banks, T., Kilmartin, P.M. and Budding, E., 1991, Astrophys. and Space Sci., 183, 309.Google Scholar
Budding, E. and Zeilik, M., 1987, Astrophys. J., 319, 827.Google Scholar
Collier, A.C., 1982, Mon. Not. R. Astr. Soc., 200, 489.Google Scholar
Dodson, H.W. and Hedeman, E.R., 1972, in Solar Activity Observations and Predictions,ed. Mclntosh, P.S. and Dryer, M.. (Boulder:NOAO).Google Scholar
Eaton, J.A. and Hall, D.S., 1979, Astrophys. J., 227, 907.Google Scholar
Innis, J.L., 1986, PhD thesis, Dept. of Physics, Monash University.Google Scholar
Innis, J.L., Thompson, K., Coates, D.W. and Lloyd Evans, T., 1988, Mon. Not. R. Astr. Soc., 235, 1411.Google Scholar
Stibbs, D.W.N., 1950, Mon. Not. R. Astr. Soc., 110, 395.Google Scholar
Vogt, S.S. and Penrod, G.D., 1983, Pub. Astr. Soc. Pac., 95, 565.Google Scholar
Zeilik, M., Cox, D.A., De Blasi, C., Rhodes, M. and Budding, E., 1989, Astrophys. J., 345, 991.Google Scholar
Zeilik, M., De Blasi, C., Rhodes, M. and Budding, E., 1988 Astrophys. J., 332, 293.Google Scholar