Determining distances using asteroseismic methods

V. Silva Aguirre, W.J. Chaplin, L. Casagrande, S. Basu, T.L. Campante, A. Miglio, D. Huber, A.M. Serenelli

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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 Kepler field that have accurate 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.
Original languageEnglish
Pages (from-to)22-25
Number of pages4
JournalAstronomische Nachrichten
Volume334
Issue number1-2
DOIs
Publication statusPublished - 1 Feb 2013

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