Surface imaging of eclipsing binary stars. 1: Techniques

Details Surface imaging of eclipsing binary stars. 1: Techniques Surface imaging of eclipsing binary stars. 1: Techniques

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...278..523v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 278, no. 2, p. 523-541

Astronomy and Astrophysics

Astrophysics

31

Eclipsing Binary Stars, Error Analysis, Imaging Techniques, Mapping, Mercator Projection, Temperature Distribution, Doppler Effect, Eccentricity, Orbital Velocity, Spectral Resolution

Scientific paper

Surface (Doppler) imaging techniques for mapping the temperature distribution of a single star are generalized to the case of an eclipsing spectroscopic binary. In this paper we study three main questions, crucial for further application of the techniques. We found that the method described in this paper can be successfully used for imaging eclipsing binary systems. The resulting map is more sensitive to the errors in the parameters of the system than is the case of a single star. Characteristic distortions of the map can be used as indicators for fine tuning of some of the parameters. We also found that a good phase coverage of the observations is most important for reducing the artificial equatorial symmetry, typical for the line profile inversion when used for high inclination binary systems.

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