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Determining distances using asteroseismic methods

Title
Determining distances using asteroseismic methods
Type
Article in International Scientific Journal
Year
2013
Authors
Silva Aguirre, V
(Author)
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Casagrande, L
(Author)
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Basu, S
(Author)
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Campante, TL
(Author)
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Chaplin, WJ
(Author)
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Huber, D
(Author)
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Miglio, A
(Author)
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Serenelli, AM
(Author)
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KASC WG,
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Journal
Vol. 334
Pages: 22-25
ISSN: 0004-6337
Publisher: Wiley-Blackwell
Other information
Authenticus ID: P-006-EE9
Abstract (EN): 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. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 4
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