Spectroscopic Variability in Late-Type Dwarfs Using High S/n Spectra

Bibcode
1988IAUS..132..287F
Foing, B. H.; Beckman, J. E.; Vladilo, G.
Referencia bibliográfica

The Impact of Very High S/N Spectroscopy on Stellar Physics: Proceedings of the 132nd Symposium of the International Astronomical Union held in Paris, France, June 29-July 3, 1987. Edited by G. Cayrel de Strobel and Monique Spite. International Astronomical Union. Symposium no. 132, Kluwer Academic Publishers, Dordrecht., p.287

Fecha de publicación:
0
1988
Número de autores
3
Número de autores del IAC
0
Número de citas
1
Número de citas referidas
1
Descripción
Monitoring of active late-type dwarfs, spectroscopically with high resolution (λ/Δλ ≡ 105) and high S:N (>300) round their activity cycles, principally in the Ca II H resonance line, offers techniques to explore, (1) plage filling factors, (2) 3-dimensional chromospheric velocity fields, (3) maps of surface activity via "Doppler Imaging". In this paper the authors deal with the use of spectral signatures to derive plage cover.
Tipo
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