Library of Lick/IDS indices for binaries

Using evolutionary population synthesis, we present 13 refined absorption-line indices defined by the Lick Observatory Image Dissector Scanner (Lick/IDS) system for an extensive set of instantaneous-burst binary stellar populations (BSPs) at high resolution (~0.3{AA}), and 38 indices at intermediate resolution (3{AA}). The ages of the populations are at an interval of 1Gyr in the range 115 Gyr, and the metallicities are in the range 0.004-0.03.

These indices are obtained by two methods: (i) using the empirical fitting functions (FFs method); (ii) measured directly from the synthetic spectra (DC method). Together with our previous paper, a data base of Lick/IDS spectral absorption-line indices for BSPs at high and intermediate resolutions is provided. This set of indices includes 21 indices of Worthey et al. (1994, Cat. <J/ApJS/94/687>), four Balmer indices defined by Worthey & Ottaviani (1997, Cat. <J/ApJS/111/377>), and 13 indices with the new passband definitions of Trager et al. (1998, Cat. <J/ApJS/116/1>, hereafter T98.