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Surface Imaging of El Eri

Published online by Cambridge University Press:  12 April 2016

T. Hackman ,
N.E. Piskunov ,
M. Poutanen ,
K.G. Strassmeier  and
I. Tuominen
T. Hackman
Affiliation:
Observatory and Astrophysics Laboratory, University of Helsinki, Finland
N.E. Piskunov
Affiliation:
Astronomical Council of the USSR Academy of Sciences, Moscow, USSR
M. Poutanen
Affiliation:
Finnish Geodetic Institute, Helsinki, Finland
K.G. Strassmeier
Affiliation:
Institute for Astronomy, University of Vienna, Austria
I. Tuominen
Affiliation:
Observatory and Astrophysics Laboratory, University of Helsinki, Finland

Abstract

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We present maps of the temperature distribution on the spotted RS CVn-type binary EI Eri (HD 26337), obtained by means of the surface imaging technique described in the Colloquium (Piskunov, 1991). Images were calculated for two separate lines for two epochs of observation. For one epoch we also calculated an image using a blend of several lines. The reliability of the maps is confirmed by comparing the simultaneous photometric observations with the light curves calculated from the temperature maps.

Type
Part IV Stellar activity
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 321 - 325
Copyright
Copyright © Springer-Verlag 1991

References

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