SIMBAD references

1996A&AS..118..595V - Astron. Astrophys., Suppl. Ser., 118, 595-603 (1996/September-0)

Spectroscopy made easy: A new tool for fitting observations with synthetic spectra.


Abstract (from CDS):

We describe a new software package that may be used to determine stellar and atomic parameters by matching observed spectra with synthetic spectra generated from parameterized atmospheres. A nonlinear least squares algorithm is used to solve for any subset of allowed parameters, which include atomic data (log gf and van der Waals damping constants), model atmosphere specifications (T_ eff_, logg), elemental abundances, and radial, turbulent, and rotational velocities. LTE synthesis software handles discontiguous spectral intervals and complex atomic blends. As a demonstration, we fit 26 FeI lines in the NSO Solar Atlas (Kurucz et al. 1984), determining various solar and atomic parameters.

Abstract Copyright:

Journal keyword(s): radiative transfer - methods: numerical - techniques: spectroscopic - stars: fundamental parameters - sun: fundamental parameters - atomic data

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