Stellar acoustic radii and ages from seismic inversion techniques

Stellar acoustic radii and ages from seismic inversion techniques

Determining stellar characteristics such as the radius, mass or age is crucial and asteroseismology is currently the most promising tool to provide these results accurately. We extend the SOLA inversion technique to new global characteristics in addition to the mean density [2] and apply our methodo...

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Main Authors: Buldgen G., Reese D. R., Dupret M. A., Samadi R.
Format: Article
Language:English
Published: EDP Sciences 2015-01-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/201510106015
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spelling doaj-0ed5b0026a00490d993344f77b6aebe62021-08-02T09:18:38ZengEDP SciencesEPJ Web of Conferences2100-014X2015-01-011010601510.1051/epjconf/201510106015epjconf_sphr2014_06015Stellar acoustic radii and ages from seismic inversion techniquesBuldgen G.Reese D. R.Dupret M. A.Samadi R.Determining stellar characteristics such as the radius, mass or age is crucial and asteroseismology is currently the most promising tool to provide these results accurately. We extend the SOLA inversion technique to new global characteristics in addition to the mean density [2] and apply our methodology to the acoustic radius and an age indicator based on the sound speed derivative. The results from SOLA inversions are compared with estimates based on the small and large frequency separations for several test cases. We show that SOLA inversions yield more accurate results than other techniques which are more sensitive to surface effects.http://dx.doi.org/10.1051/epjconf/201510106015
collection DOAJ
language English
format Article
sources DOAJ
author Buldgen G.
Reese D. R.
Dupret M. A.
Samadi R.
spellingShingle Buldgen G.
Reese D. R.
Dupret M. A.
Samadi R.
Stellar acoustic radii and ages from seismic inversion techniques
EPJ Web of Conferences
author_facet Buldgen G.
Reese D. R.
Dupret M. A.
Samadi R.
author_sort Buldgen G.
title Stellar acoustic radii and ages from seismic inversion techniques
title_short Stellar acoustic radii and ages from seismic inversion techniques
title_full Stellar acoustic radii and ages from seismic inversion techniques
title_fullStr Stellar acoustic radii and ages from seismic inversion techniques
title_full_unstemmed Stellar acoustic radii and ages from seismic inversion techniques
title_sort stellar acoustic radii and ages from seismic inversion techniques
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2015-01-01
description Determining stellar characteristics such as the radius, mass or age is crucial and asteroseismology is currently the most promising tool to provide these results accurately. We extend the SOLA inversion technique to new global characteristics in addition to the mean density [2] and apply our methodology to the acoustic radius and an age indicator based on the sound speed derivative. The results from SOLA inversions are compared with estimates based on the small and large frequency separations for several test cases. We show that SOLA inversions yield more accurate results than other techniques which are more sensitive to surface effects.
url http://dx.doi.org/10.1051/epjconf/201510106015
work_keys_str_mv AT buldgeng stellaracousticradiiandagesfromseismicinversiontechniques
AT reesedr stellaracousticradiiandagesfromseismicinversiontechniques
AT dupretma stellaracousticradiiandagesfromseismicinversiontechniques
AT samadir stellaracousticradiiandagesfromseismicinversiontechniques
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