Cepheid investigations using the Kepler space telescope

R. Szabó, L. Szabados, C. C. Ngeow, R. Smolec, A. Derekas, P. Moskalik, J. Nuspl, H. Lehmann, G. Furész, J. Molenda-Zakowicz, S. T. Bryson, A. A. Henden, D. W. Kurtz, D. Stello, J. M. Nemec, J. Benkő, L. Berdnikov, H. Bruntt, N. R. Evans, N. A. GorynyaE. N. Pastukhova, R. J. Simcoe, J. E. Grindlay, E. J. Los, A. Doane, S. G. Laycock, D. J. Mink, G. Champine, A. Sliski, G. Handler, L. L. Kiss, Z. Kolláth, J. Kovács, J. Christensen-Dalsgaard, H. Kjeldsen, C. Allen, S. E. Thompson, J. Van Cleve

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report results of initial work done on selected candidate Cepheids to be observed with the Kepler space telescope. Prior to the launch, 40 candidates were selected from previous surveys and data bases. The analysis of the first 322d of Kepler photometry, and recent ground-based follow-up multicolour photometry and spectroscopy allowed us to confirm that one of these stars, V1154Cyg (KIC7548061), is indeed a 4.9-d Cepheid. Using the phase lag method, we show that this star pulsates in the fundamental mode. New radial velocity data are consistent with previous measurements, suggesting that a long-period binary component is unlikely. No evidence is seen in the ultraprecise, nearly uninterrupted Kepler photometry for non-radial or stochastically excited modes at the micromagnitude level. The other candidates are not Cepheids, but an interesting mix of possible spotted stars, eclipsing systems and flare stars.

Original languageEnglish
Pages (from-to)2709-2720
Number of pages12
JournalMonthly Notices of the Royal Astronomical Society
Volume413
Issue number4
DOIs
Publication statusPublished - Jun 2011

Fingerprint

spectroscopy
telescopes
photometry
stars
flare stars
data bases
radial velocity
time lag
method
data base
analysis

Keywords

  • Stars: individual: V1154 Cygni, KIC 7548061
  • Stars: individual: V2279 Cygni, KIC 8022670
  • Stars: oscillations
  • Stars: variables: Cepheids
  • Techniques: photometric
  • Techniques: spectroscopic

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Cepheid investigations using the Kepler space telescope. / Szabó, R.; Szabados, L.; Ngeow, C. C.; Smolec, R.; Derekas, A.; Moskalik, P.; Nuspl, J.; Lehmann, H.; Furész, G.; Molenda-Zakowicz, J.; Bryson, S. T.; Henden, A. A.; Kurtz, D. W.; Stello, D.; Nemec, J. M.; Benkő, J.; Berdnikov, L.; Bruntt, H.; Evans, N. R.; Gorynya, N. A.; Pastukhova, E. N.; Simcoe, R. J.; Grindlay, J. E.; Los, E. J.; Doane, A.; Laycock, S. G.; Mink, D. J.; Champine, G.; Sliski, A.; Handler, G.; Kiss, L. L.; Kolláth, Z.; Kovács, J.; Christensen-Dalsgaard, J.; Kjeldsen, H.; Allen, C.; Thompson, S. E.; Van Cleve, J.

In: Monthly Notices of the Royal Astronomical Society, Vol. 413, No. 4, 06.2011, p. 2709-2720.

Research output: Contribution to journalArticle

Szabó, R, Szabados, L, Ngeow, CC, Smolec, R, Derekas, A, Moskalik, P, Nuspl, J, Lehmann, H, Furész, G, Molenda-Zakowicz, J, Bryson, ST, Henden, AA, Kurtz, DW, Stello, D, Nemec, JM, Benkő, J, Berdnikov, L, Bruntt, H, Evans, NR, Gorynya, NA, Pastukhova, EN, Simcoe, RJ, Grindlay, JE, Los, EJ, Doane, A, Laycock, SG, Mink, DJ, Champine, G, Sliski, A, Handler, G, Kiss, LL, Kolláth, Z, Kovács, J, Christensen-Dalsgaard, J, Kjeldsen, H, Allen, C, Thompson, SE & Van Cleve, J 2011, 'Cepheid investigations using the Kepler space telescope', Monthly Notices of the Royal Astronomical Society, vol. 413, no. 4, pp. 2709-2720. https://doi.org/10.1111/j.1365-2966.2011.18342.x
Szabó, R. ; Szabados, L. ; Ngeow, C. C. ; Smolec, R. ; Derekas, A. ; Moskalik, P. ; Nuspl, J. ; Lehmann, H. ; Furész, G. ; Molenda-Zakowicz, J. ; Bryson, S. T. ; Henden, A. A. ; Kurtz, D. W. ; Stello, D. ; Nemec, J. M. ; Benkő, J. ; Berdnikov, L. ; Bruntt, H. ; Evans, N. R. ; Gorynya, N. A. ; Pastukhova, E. N. ; Simcoe, R. J. ; Grindlay, J. E. ; Los, E. J. ; Doane, A. ; Laycock, S. G. ; Mink, D. J. ; Champine, G. ; Sliski, A. ; Handler, G. ; Kiss, L. L. ; Kolláth, Z. ; Kovács, J. ; Christensen-Dalsgaard, J. ; Kjeldsen, H. ; Allen, C. ; Thompson, S. E. ; Van Cleve, J. / Cepheid investigations using the Kepler space telescope. In: Monthly Notices of the Royal Astronomical Society. 2011 ; Vol. 413, No. 4. pp. 2709-2720.
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AU - Szabados, L.

AU - Ngeow, C. C.

AU - Smolec, R.

AU - Derekas, A.

AU - Moskalik, P.

AU - Nuspl, J.

AU - Lehmann, H.

AU - Furész, G.

AU - Molenda-Zakowicz, J.

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AU - Henden, A. A.

AU - Kurtz, D. W.

AU - Stello, D.

AU - Nemec, J. M.

AU - Benkő, J.

AU - Berdnikov, L.

AU - Bruntt, H.

AU - Evans, N. R.

AU - Gorynya, N. A.

AU - Pastukhova, E. N.

AU - Simcoe, R. J.

AU - Grindlay, J. E.

AU - Los, E. J.

AU - Doane, A.

AU - Laycock, S. G.

AU - Mink, D. J.

AU - Champine, G.

AU - Sliski, A.

AU - Handler, G.

AU - Kiss, L. L.

AU - Kolláth, Z.

AU - Kovács, J.

AU - Christensen-Dalsgaard, J.

AU - Kjeldsen, H.

AU - Allen, C.

AU - Thompson, S. E.

AU - Van Cleve, J.

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KW - Stars: individual: V2279 Cygni, KIC 8022670

KW - Stars: oscillations

KW - Stars: variables: Cepheids

KW - Techniques: photometric

KW - Techniques: spectroscopic

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