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Analysis of γ Doradus and δ Scuti stars observed by Kepler

Published online by Cambridge University Press:  18 February 2014

Paul A. Bradley ,
Joyce A. Guzik ,
Lillian F. Miles ,
Jason Jackiewicz ,
Katrien Uytterhoeven  and
Karen Kinemuchi
Paul A. Bradley
Affiliation:
Los Alamos National Laboratory XCP-6, MS F699, Los Alamos, NM 87545, USA email: pbradley@lanl.gov, lfmiles@lanl.gov
Joyce A. Guzik
Affiliation:
Los Alamos National Laboratory XTD-NTA, MS T086, Los Alamos, NM 87545, USA email: joy@lanl.gov
Lillian F. Miles
Affiliation:
Los Alamos National Laboratory XCP-6, MS F699, Los Alamos, NM 87545, USA email: pbradley@lanl.gov, lfmiles@lanl.gov
Jason Jackiewicz
Affiliation:
Dept. of Astronomy, New Mexico State UniversityP.O. Box 30001, MSC 4500, Las Cruces, NM 88003, USA email: jasonj@nmsu.edu
Katrien Uytterhoeven
Affiliation:
Instituto de Astrofisica de Canarias (IAC)E-38200, La Laguna, Tenerife, Spain email: katrien@iac.es
Karen Kinemuchi
Affiliation:
Apache Point Observatory, P.O. Box 59, 2001 Apache Point Road, Sunspot, NM 88349, USA email: kinemuchi@apo.nmsu.edu
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Abstract

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The Kepler spacecraft observed over 2000 faint stars that were part of our Guest Observer proposals. The stars were selected from the Kepler Input Catalog (KIC) to be in or near the γ Doradus or δ Scuti instability strips (8300 K > Teff > 6200 K and 3.6 < log g < 4.7). The Kepler magnitude was <16 and the contamination factor was < 10−2. The goal was to extend the search for “hybrid” δ Sct-γ Dor pulsators to fainter magnitudes. By inspecting the light curves and Fourier transforms, we find 42 δ Sct candidate stars, 299 γ Dor candidates, and 36 “hybrid” candidate stars showing both types of variations.

Keywords

techniques: photometricstars: variables: δ Scutistars: variables: γ Doradus
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S301: Precision Asteroseismology , August 2013 , pp. 387 - 388
Copyright
Copyright © International Astronomical Union 2014 

References

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Uytterhoeven, K., Moya, A., Grigahcène, A., et al. 2011, A&A, 534, A125Google Scholar