SIMBAD references

2019ApJ...882..148G - Astrophys. J., 882, 148-148 (2019/September-2)

A recipe for finding stellar radii, temperatures, surface gravities, metallicities, and masses using spectral lines.


Abstract (from CDS):

A recipe based on physical principles employs the observed equivalent widths of 10 spectral lines to model the photosphere of a target star. Coupled with the visual magnitude and an absolute flux calibration, the recipe yields the angular radius, effective temperature, surface gravity, and metallicity. With the addition of a parallax, a linear radius and a mass estimate are added to the results. The method is applied to a sample of 26 G and K stars that span luminosity classes V to IIIa. The recipe-determined angular radii agree with the interferometer radii and have comparable errors. But unlike interferometers, the recipe is not limited to sizes >=1 mas. The veracity of the other recipe-derived parameters is supported by numerous comparisons with previously published values.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: observational - stars: abundances - stars: atmospheres - stars: fundamental parameters - stars: late-type - techniques: spectroscopic

Simbad objects: 27

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