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Starspot imaging using VRI photometry

  • A. Collier Cameron (a1)

Abstract

Recent progress on maximum-entropy imaging of stellar surface brightness distributions using VRI photometry and Doppler-broadened absorption line profiles is reported. VRI photometry generally provides tighter constraints on starspot configurations than does Doppler imaging (which requires the use of large telescopes). Observers carrying out long-term photometric monitoring programmes on spotted stars are urged to work in the VRI system, as well as the UBV.

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Copyright

References

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Barnes, TG, Evans, DS and Moffett, TJ 1978 Mon Not R astr Soc 183 285
Cameron, AC and Horne, KD 1986} in Fourth Cambridge Workshop on Cool Stars, Stellar Systems and the Sun Springer-Verlag in press
Cameron, AC et al 1986
Skilling, J and Bryan, RK 1984 Mon Not R astr Soc 211 111
Vogt, SS 1981 Astrophys J 250 327
Vogt, SS and Penrod, GD 1983 Pub astr Soc Pacific 95 565

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