Automated classification of variable stars in the asteroseismology program of the kepler space mission

J. Blomme, J. Debosscher, J. De Ridder, C. Aerts, R. L. Gilliland, J. Christensen-Dalsgaard, H. Kjeldsen, T. M. Brown, W. J. Borucki, D. Koch, J. M. Jenkins, D. W. Kurtz, D. Stello, I. R. Stevens, M. D. Suran, A. Derekas

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


We present the first results of the application of supervised classification methods to the Kepler Q1 long-cadence light curves of a subsample of 2288 stars measured in the asteroseismology program of the mission. The methods, originally developed in the framework of the CoRoT and Gaia space missions, are capable of identifying the most common types of stellar variability in a reliable way. Many new variables have been discovered, among which a large fraction are eclipsing/ellipsoidal binaries unknown prior to launch. A comparison is made between our classification from the Kepler data and the pre-launch class based on data from the ground, showing that the latter needs significant improvement. The noise properties of the Kepler data are compared to those of the exoplanet program of the CoRoT satellite. We find that Kepler improves on CoRoT by a factor of 2-2.3 in point-to-point scatter.

Original languageEnglish (US)
Pages (from-to)L204-L207
JournalAstrophysical Journal Letters
Issue number2 PART 2
StatePublished - 2010

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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