Title: An asteroseismic membership study of the red giants in three open clusters observed by kepler: ngc 6791, ngc 6819, and ngc 6811
Authors: Stello, Dennis ×
Meibom, Soren
Gilliland, Ronald L
Grundahl, Frank
Hekker, Saskia
Mosser, Benoit
Kallinger, Thomas
Mathur, Savita
Garcia, Rafael A
Huber, Daniel
Basu, Sarbani
Bedding, Timothy R
Brogaard, Karsten
Chaplin, William J
Elsworth, Yvonne P
Molenda-Zakowicz, Joanna
Szabo, Robert
Still, Martin
Jenkins, Jon M
Christensen-Dalsgaard, Jorgen
Kjeldsen, Hans
Serenelli, Aldo M
Wohler, Bill #
Issue Date: Sep-2011
Publisher: University of Chicago Press for the American Astronomical Society
Series Title: Astrophysical Journal vol:739 issue:1 pages:-
Article number: 13
Abstract: Studying star clusters offers significant advances in stellar astrophysics due to the combined power of having many stars with essentially the same distance, age, and initial composition. This makes clusters excellent test benches for verification of stellar evolution theory. To fully exploit this potential, it is vital that the star sample is uncontaminated by stars that are not members of the cluster. Techniques for determining cluster membership therefore play a key role in the investigation of clusters. We present results on three clusters in the Kepler field of view based on a newly established technique that uses asteroseismology to identify fore-or background stars in the field, which demonstrates advantages over classical methods such as kinematic and photometry measurements. Four previously identified seismic non-members in NGC6819 are confirmed in this study, and three additional non-members are found-two in NGC6819 and one in NGC6791. We further highlight which stars are, or might be, affected by blending, which needs to be taken into account when analyzing these Kepler data.
ISSN: 0004-637X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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