科研之友
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摘要
Aims. We present a new library of high-resolution synthetic spectra based on the stellar atmosphere code PHOENIX that can be used for a wide range of applications of spectral analysis and stellar parameter synthesis. @@@ Methods. The spherical mode of PHOENIX was used to create model atmospheres and to derive detailed synthetic stellar spectra from them. We present a new self-consistent way of describing micro-turbulence for our model atmospheres. @@@ Results. The synthetic spectra cover the wavelength range from 500 angstrom to 5.5 mu m with resolutions of R = 500 000 in the optical and near IR, R = 100 000 in the IR and Delta lambda = 0.1 angstrom in the UV. The parameter space covers 2300 K <= T-eff <= 12 000K, 0.0 <= log g <= +6.0, -4.0 <= [Fe/H] <= +1.0, and -0.2 <= [alpha/Fe] <= +1.2. The library is a work in progress and we expect to extend it up to T-eff = 25 000K.
- 出版日期2013-5
