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Exploiting the Open Clusters in the Kepler and CoRoT Fields

  • Karsten Brogaard
  • Eric Sandquist
  • Jens Jessen-Hansen
  • Frank Grundahl
  • Søren Frandsen
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP, volume 39)

Abstract

The open clusters in the Kepler and CoRoT fields potentially provide tight constraints for tests of stellar models and observational methods because they allow a combination of complementary methods. We are in the process of identifying and measuring parameters for detached eclipsing binaries (dEBs) in the open clusters in the Kepler and CoRoT fields. We make use of measurements of dEBs in the clusters to test the accuracy of asteroseismic scaling relations for mass. We are able to provide strong indications that the asteroseismic scaling relations overestimate the stellar mass, but we are not yet able to distinguish between different proposed corrections from the literature. We argue how our ongoing measurements of more dEBs in more clusters, complemented by dEBs in the field, should be able to break the degeneracy. We also briefly describe how we can identify cluster stars that have evolved through non-standard evolution by making use of ensemble asteroseismology.

Notes

Acknowledgements

K. Brogaard acknowledges funding from the Villum Foundation.

Funding for the Stellar Astrophysics Centre is provided by The Danish National Research Foundation (Grant agreement no.: DNRF106). The research is supported by the ASTERISK project (ASTERoseismic Investigations with SONG and Kepler) funded by the European Research Council (Grant agreement no.: 267864).

References

  1. Basu, S., Grundahl, F., Stello, D., et al. 2011, ApJ, 729, L10ADSCrossRefGoogle Scholar
  2. Bragaglia, A., Carretta, E., Gratton, R. G., et al. 2001, AJ, 121, 327ADSCrossRefGoogle Scholar
  3. Brogaard, K., VandenBerg, D. A., Bruntt, H., et al. 2012, A&A, 543, A106ADSCrossRefGoogle Scholar
  4. Casagrande & VandenBerg 2014, MNRAS, 444, 392Google Scholar
  5. Corsaro, E., Stello, D., Huber, D., et al. 2012, ApJ, 757, 190ADSCrossRefGoogle Scholar
  6. Flower, P. J. 1996, ApJ, 469, 355ADSCrossRefGoogle Scholar
  7. Frandsen, S., Lehmann, H., Hekker, S., et al. 2013, A&A, 556, A138ADSCrossRefGoogle Scholar
  8. Hole, K. T., Geller, A. M., Mathieu, R. D., et al. 2009, AJ, 138, 159ADSCrossRefGoogle Scholar
  9. Jeffries, Jr., M. W., Sandquist, E. L., Mathieu, R. D., et al. 2013, AJ, 146, 58ADSCrossRefGoogle Scholar
  10. Miglio, A., Brogaard, K., Stello, D., et al. 2012, MNRAS, 419, 2077ADSCrossRefGoogle Scholar
  11. Miglio, A., Chiappini, C., Morel, T., et al. 2013, in European Physical Journal Web of Conferences, Vol. 43, European Physical Journal Web of Conferences, 3004Google Scholar
  12. Molenda-Żakowicz et al. 2014, MNRAS, accepted (arXiv:1409.5132)Google Scholar
  13. Mosser, B., Michel, E., Belkacem, K., et al. 2013, A&A, 550, A126ADSCrossRefGoogle Scholar
  14. Ramírez, I. & Meléndez, J. 2005, ApJ, 626, 465ADSCrossRefGoogle Scholar
  15. Sandquist, E. L., Mathieu, R. D., Brogaard, K., et al. 2013, ApJ, 762, 58ADSCrossRefGoogle Scholar
  16. Stello, D., Huber, D., Bedding, T. R., et al. 2013, ApJ, 765, L41ADSCrossRefGoogle Scholar
  17. Stello, D., Meibom, S., Gilliland, R. L., et al. 2011, ApJ, 739, 13ADSCrossRefGoogle Scholar
  18. White, T. R., Bedding, T. R., Stello, D., et al. 2011, ApJ, 743, 161ADSCrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Karsten Brogaard
    • 1
  • Eric Sandquist
    • 2
  • Jens Jessen-Hansen
    • 1
  • Frank Grundahl
    • 1
  • Søren Frandsen
    • 1
  1. 1.Department of Physics and Astronomy, Stellar Astrophysics CentreAarhus UniversityAarhus CDenmark
  2. 2.Department of AstronomySan Diego State UniversitySan DiegoUSA

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