A fitting LEGACY – modelling Kepler's best stars

The LEGACY sample represents the best solar-like stars observed in the Kepler mission[5, 8]. The 66 stars in the sample are all on the main sequence or only slightly more evolved. They each have more than one year's observation data in short cadence, allowing for precise extraction of individua...

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Main Authors: Aarslev Magnus J., Christensen-Dalsgaard Jørgen, Lund Mikkel N., Aguirre Victor Silva, Gough Douglas
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201716003010
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author Aarslev Magnus J.
Christensen-Dalsgaard Jørgen
Lund Mikkel N.
Aguirre Victor Silva
Gough Douglas
author_facet Aarslev Magnus J.
Christensen-Dalsgaard Jørgen
Lund Mikkel N.
Aguirre Victor Silva
Gough Douglas
author_sort Aarslev Magnus J.
collection DOAJ
description The LEGACY sample represents the best solar-like stars observed in the Kepler mission[5, 8]. The 66 stars in the sample are all on the main sequence or only slightly more evolved. They each have more than one year's observation data in short cadence, allowing for precise extraction of individual frequencies. Here we present model fits using a modified ASTFIT procedure employing two different near-surface-effect corrections, one by Christensen-Dalsgaard[4] and a newer correction proposed by Ball & Gizon[1]. We then compare the results obtained using the different corrections. We find that using the latter correction yields lower masses and significantly lower χ2 values for a large part of the sample.
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spelling doaj.art-5bc18e48b5c3485fa1b14c032e985a6e2022-12-21T18:30:15ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011600301010.1051/epjconf/201716003010epjconf_azores2017_03010A fitting LEGACY – modelling Kepler's best starsAarslev Magnus J.Christensen-Dalsgaard JørgenLund Mikkel N.Aguirre Victor SilvaGough DouglasThe LEGACY sample represents the best solar-like stars observed in the Kepler mission[5, 8]. The 66 stars in the sample are all on the main sequence or only slightly more evolved. They each have more than one year's observation data in short cadence, allowing for precise extraction of individual frequencies. Here we present model fits using a modified ASTFIT procedure employing two different near-surface-effect corrections, one by Christensen-Dalsgaard[4] and a newer correction proposed by Ball & Gizon[1]. We then compare the results obtained using the different corrections. We find that using the latter correction yields lower masses and significantly lower χ2 values for a large part of the sample.https://doi.org/10.1051/epjconf/201716003010
spellingShingle Aarslev Magnus J.
Christensen-Dalsgaard Jørgen
Lund Mikkel N.
Aguirre Victor Silva
Gough Douglas
A fitting LEGACY – modelling Kepler's best stars
EPJ Web of Conferences
title A fitting LEGACY – modelling Kepler's best stars
title_full A fitting LEGACY – modelling Kepler's best stars
title_fullStr A fitting LEGACY – modelling Kepler's best stars
title_full_unstemmed A fitting LEGACY – modelling Kepler's best stars
title_short A fitting LEGACY – modelling Kepler's best stars
title_sort fitting legacy modelling kepler s best stars
url https://doi.org/10.1051/epjconf/201716003010
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