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. M. Benko; L. Berdnikov; H. Bruntt; N. R. Evans; N. A. Gorynya; E. 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

doi:10.1111/j.1365-2966.2011.18342.x

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. M. Benko, 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

Graduate Institute of Astronomy

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17 Scopus citations

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 language	English
Pages (from-to)	2709-2720
Number of pages	12
Journal	Monthly Notices of the Royal Astronomical Society
Volume	413
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2966.2011.18342.x
State	Published - Jun 2011

Keywords

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

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10.1111/j.1365-2966.2011.18342.x

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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., Benko, J. M., Berdnikov, L., Bruntt, H., Evans, N. R., ... Van Cleve, J. (2011). Cepheid investigations using the Kepler space telescope. Monthly Notices of the Royal Astronomical Society, 413(4), 2709-2720. https://doi.org/10.1111/j.1365-2966.2011.18342.x

@article{1239cf43a4664c90860a742e79d7ac0f,

title = "Cepheid investigations using the Kepler space telescope",

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.",

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

author = "R. Szab{\'o} and L. Szabados and Ngeow, {C. C.} and R. Smolec and A. Derekas and P. Moskalik and J. Nuspl and H. Lehmann and G. Fur{\'e}sz and J. Molenda-Zakowicz and Bryson, {S. T.} and Henden, {A. A.} and Kurtz, {D. W.} and D. Stello and Nemec, {J. M.} and Benko, {J. M.} and L. Berdnikov and H. Bruntt and Evans, {N. R.} and Gorynya, {N. A.} and Pastukhova, {E. N.} and Simcoe, {R. J.} and Grindlay, {J. E.} and Los, {E. J.} and A. Doane and Laycock, {S. G.} and Mink, {D. J.} and G. Champine and A. Sliski and G. Handler and Kiss, {L. L.} and Z. Koll{\'a}th and J. Kov{\'a}cs and J. Christensen-Dalsgaard and H. Kjeldsen and C. Allen and Thompson, {S. E.} and {Van Cleve}, J.",

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volume = "413",

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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, Benko, JM, 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

TY - JOUR

T1 - Cepheid investigations using the Kepler space telescope

AU - Szabó, R.

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.

AU - Bryson, S. T.

AU - Henden, A. A.

AU - Kurtz, D. W.

AU - Stello, D.

AU - Nemec, J. M.

AU - Benko, J. M.

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.

PY - 2011/6

Y1 - 2011/6

N2 - 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.

AB - 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.

KW - Stars: individual: V1154 Cygni, KIC 7548061

KW - Stars: individual: V2279 Cygni, KIC 8022670

KW - Stars: oscillations

KW - Stars: variables: Cepheids

KW - Techniques: photometric

KW - Techniques: spectroscopic

UR - http://www.scopus.com/inward/record.url?scp=79956202888&partnerID=8YFLogxK

U2 - 10.1111/j.1365-2966.2011.18342.x

DO - 10.1111/j.1365-2966.2011.18342.x

M3 - 期刊論文

AN - SCOPUS:79956202888

SN - 0035-8711

VL - 413

SP - 2709

EP - 2720

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Cepheid investigations using the Kepler space telescope

Abstract

Keywords

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