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A&A Supplement series, Vol. 123, June II 1997, 473-485

Received June 17; accepted September 25, 1996

Library of high and mid-resolution spectra in the Ca II H & K, tex2html_wrap_inline2234, tex2html_wrap_inline2236, Na I tex2html_wrap_inline2238, tex2html_wrap_inline2240, and He I tex2html_wrap_inline2242 line regions of F, G, K and M field starsgiftex2html_wrap_inline2244

D. Montes tex2html_wrap2262 - E.L. Martín tex2html_wrap2264 - M.J. Fernández-Figueroa tex2html_wrap2266 - M. Cornide tex2html_wrap2268 - E. De Castro tex2html_wrap2270

Send offprint request: D. Montes (

tex2html_wrap2272  Departamento de Astrofísica, Facultad de Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
tex2html_wrap2274  Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain


In this work we present spectroscopic observations centered in the spectral lines most widely used as optical indicators of chromospheric activity (tex2html_wrap_inline2246, tex2html_wrap_inline2248, Ca II H & K, and He I tex2html_wrap_inline2250) in a sample of F, G, K and M chromospherically inactive stars. The spectra have been obtained with the aim of providing a library of high and mid-resolution spectra to be used in the application of the spectral subtraction technique to obtain the active-chromosphere contribution to these lines in chromospherically active single and binary stars. This library can also be used for spectral classification purposes. A digital version with all the spectra is available via ftp and the World Wide Web (WWW) in both ASCII and FITS formats.

keywords: atlas -- stars: activity -- stars: late-type -- stars: fundamental parameters -- stars: general

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