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A fitting LEGACY – modelling Kepler's best stars

Aarslev, Magnus J ; Christensen-Dalsgaard, Jørgen ; Lund, Mikkel N ; Victor Silva Aguirre ; Gough, Douglas

EPJ Web of Conferences, 2017, Vol.160, p.03010 [Revista revisada por pares]

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Título:
A fitting LEGACY – modelling Kepler's best stars
Autor: Aarslev, Magnus J ; Christensen-Dalsgaard, Jørgen ; Lund, Mikkel N ; Victor Silva Aguirre ; Gough, Douglas
Materias: Stars
Es parte de: EPJ Web of Conferences, 2017, Vol.160, p.03010
Descripción: 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.
Editor: Les Ulis: EDP Sciences
Idioma: Inglés

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