Poster Title: BLoIS 1.0: The Basel Library of Integrated Spectra
Abstract: BLoIS 1.0: The Basel Library of Integrated Spectra
We compiled an extensive library of integrated stellar population properties based on the BaSeL stellar libraries by Westera, the evolutionary synthesis code GISSEL by Bruzual & Charlot, and the latest chemodynamical galaxy models by Samland. It has been designed for theoretical studies (such as the age-metallicity-degeneracy) as well as for comparison to observations.
The first version contains 504 Single Stellar Populations (SSPs), each consisting of integrated spectra for 221 ages between 0 and 20 Ga. We chose 14 different IMFs, varied in slope and shape, as well as 7 different metallicities between Z = 0.0001 and 0.1 (corresponding to the Padova 1994 evolutionary tracks). All SSPs for BLoIS 1.0 were created using the latest theoretical BaSeL 3.1 stellar library.
Furthermore, 5'544 Composite Stellar Populations (CSPs) were calculated with 3 different types of SFRs and the same 7 metallicities as for the SSPs. The IMF however was not varied.
Finally, we generated 1'080 CSPs incorporating not only the SFR but also the chemical evolution as derived from chemodynamical galaxy models by Samland. Apart from the integrated spectra, the library also provides 18 integrated colours, 31 indices, and 23 other properties for each stellar population and for each of the 221 timesteps. BLoIS 1.0 contains 7'128 stellar populations and roughly 1.6 Mio. integrated spectra.
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