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Paper: Synthetic Ultraviolet Spectroscopic Indices in Stars
Volume: 374, From Stars to Galaxies: Building the Pieces to Build Up the Universe
Page: 319
Authors: Chavez, M.; Rodriguez-Merino, L.H.; Bertone, E.; Buzzoni, A.; Bressan, A.
Abstract: We present a progress report on the calculation of ultraviolet spectroscopic indices by using the UVBLUE library of synthetic spectra. The ensemble of indices are aimed at complementing empirical databases for the study of stellar populations. The definitions for the set of indices are mainly those empirically built upon data collected with the International Ultraviolet Explorer (IUE). Because the far-ultraviolet (far-UV) and mid-ultraviolet (mid-UV) are sensitive to quite dissimilar stellar populations, they are presented separately. We provide a few examples on the effects of the leading atmospheric parameters on index values. This analysis is, to our knowledge, the first based upon high resolution synthetic spectra and we envisage important applications on the study of stellar aggregates at UV wavelengths.
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