TY - JOUR
T1 - Seven-Period Asteroseismic Fit of KIC 8626021
AU - Bischoff-Kim, Agnès
AU - Østensen, Roy H.
AU - Hermes, J. J.
AU - Provencal, Judith L.
N1 - Publisher Copyright:
© Owned by the authors, published by EDP Sciences, 2015.
PY - 2015/9/23
Y1 - 2015/9/23
N2 - We present a new, better-constrained asteroseismic analysis of the helium-atmosphere (DB) white dwarf discovered in the field of view of the original Kepler mission. Observations obtained over the course of two years yield at least seven independent modes, two more than were found in the discovery paper for the object. With several triplets and doublets, we are able to fix the ? and m identification of several modes before performing the fitting, greatly reducing the number of assumptions we must make about mode identification. We find a very thin helium layer for this relative hot DB, which adds evidence to the hypothesis that helium diffuses outward during DB cooling.
AB - We present a new, better-constrained asteroseismic analysis of the helium-atmosphere (DB) white dwarf discovered in the field of view of the original Kepler mission. Observations obtained over the course of two years yield at least seven independent modes, two more than were found in the discovery paper for the object. With several triplets and doublets, we are able to fix the ? and m identification of several modes before performing the fitting, greatly reducing the number of assumptions we must make about mode identification. We find a very thin helium layer for this relative hot DB, which adds evidence to the hypothesis that helium diffuses outward during DB cooling.
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U2 - 10.1051/epjconf/201510106009
DO - 10.1051/epjconf/201510106009
M3 - Conference article
AN - SCOPUS:84960193577
SN - 2101-6275
VL - 101
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
M1 - 06009
T2 - CoRoT Symposium 3, Kepler KASC-7 Joint Meeting on Space Photometry Revolution
Y2 - 6 July 2014 through 11 July 2014
ER -