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arXiv · 1210.7343

Determining distances using asteroseismic methods

V. Silva Aguirre·L. Casagrande·S. Basu·T. L. Campante·W. J. Chaplin·D. Huber·A. Miglio·A. M. Serenelli·KASC WG#1
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Abstract

Asteroseismology has been extremely successful in determining the properties of stars in different evolutionary stages with a remarkable level of precision. However, to fully exploit its potential, robust methods for estimating stellar parameters are required and independent verification of the results is needed. In this talk, I present a new technique developed to obtain stellar properties by coupling asteroseismic analysis with the InfraRed Flux Method. Using two global seismic observables and multi-band photometry, the technique determines masses, radii, effective temperatures, bolometric fluxes, and thus distances for field stars in a self-consistent manner. Applying our method to a sample of solar-like oscillators in the {\it Kepler} field that have accurate {\it Hipparcos} parallaxes, we find agreement in our distance determinations to better than 5%. Comparison with measurements of spectroscopic effective temperatures and interferometric radii also validate our results, and show that our technique can be applied to stars evolved beyond the main-sequence phase.

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V. Silva Aguirre, L. Casagrande, S. Basu, T. L. Campante, W. J. Chaplin, D. Huber, A. Miglio, A. M. Serenelli, KASC WG#1. 2012-10-27. Determining distances using asteroseismic methods. https://doi.org/10.1002/asna.201211774

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