2026-06-26T08:51:30Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/596192024-09-05T14:49:11Zcom_20.500.14352_14col_20.500.14352_15

Montes Gutiérrez, David Martín, E. L. Fernández Figueroa, María José Cornide Castro-Piñeiro, Manuel Castro Rubio, Elisa De 2023-06-20T20:07:35Z 2023-06-20T20:07:35Z 1997-06 0365-0138 10.1051/aas:1997170 https://hdl.handle.net/20.500.14352/59619 http://dx.doi.org/10.1051/aas:1997170 http://aas.aanda.org/ In this work we present spectroscopic observations centered in the spectral lines most widely used as optical indicators of chromospheric activity (Hα, Hβ, CaII H & K, and HeI D_3) 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. eng open access Library of high and mid-resolution spectra in the CaII H & K, Hα, Hβ, NaI D_1, D_2, and HeI D3 line regions of F, G, K and M field stars journal article