Binary Stellar Population Synthesis Model

Details Binary Stellar Population Synthesis Model Binary Stellar Population Synthesis Model

2010-06-18

arxiv.org/abs/1006.3593v2

IAUS241 published 2007

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

2 pages 2 figures

Scientific paper

10.1017/S1743921307007909

Using Yunnan evolutionary population synthesis (EPS) models, we present integrated colours, integrated spectral energy distributions (ISEDs) and 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) with interactions. By comparing the results for populations with and without interactions we show that the inclusion of binary interactions makes the appearance of the population substantially bluer. This effect raises the derived age and metallicity of the population. To be used in the studies of modern spectroscopic galaxy surveys at intermediate/high spectral resolution, we also present intermediate- (3A) and high-resolution (~0.3A) ISEDs and Lick/IDS absorption-line indices for BSPs. To directly compare with observations the Lick/IDS absorption indices are also presented by measuring them directly from the ISEDs.

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