Libraries of stellar spectra are fundamental tools for the study of stellar populations and both empirical and synthetic libraries have been used for this purpose .
In this paper , a new library of high resolution synthetic spectra is presented , ranging from the near-ultraviolet ( 300nm ) to the near-infrared ( 1.8 { \mu } m ) .
The library spans all the stellar types that are relevant to the integrated light of old and intermediate-age stellar populations in the involved spectral region ( spectral types F through M and all luminosity classes ) .
The grid was computed for metallicities ranging from [ Fe/H ] = –2.5 to +0.5 , including both solar and \alpha -enhanced ( [ \alpha /Fe ] = 0.4 ) chemical compositions .
The synthetic spectra are a good match to observations of stars throughout the stellar parameter space encompassed by the library and over the whole spectral region covered by the computations .