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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Cepheid investigations using the Kepler space telescope
Monthly Notices of the Royal Astronomical Society, Volume 413, No. 4, Year 2011
Notification
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Description
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. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.
Authors & Co-Authors
Szabó, Róbert
Hungary, Budapest
Konkoly Observatory
Szabados, László
Hungary, Budapest
Konkoly Observatory
Ngeow, Chow Choong
Taiwan, Taoyuan
National Central University
Smolec, Radoslaw
Austria, Vienna
Universität Wien
Derekas, Alíz
Hungary, Budapest
Konkoly Observatory
Hungary, Budapest
Eötvös Loránd Tudományegyetem
Moskalik, Pawel A.
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Nuspl, János
Hungary, Budapest
Konkoly Observatory
Lehmann, Holger
Germany, Camburg
Thüringer Landessternwarte Tautenburg
Fúrész, Gábor
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Molenda-Żakowicz, Joanna
Poland, Wroclaw
University of Wroclaw
Bryson, Stephen T.
United States, Moffett Field
Nasa Ames Research Center
Henden, Arne A.
United States, Cambridge
American Association of Variable Star Observers
Kurtz, Donald W.
United Kingdom, Preston
University of Central Lancashire
Stello, Dennis
Australia, Sydney
The University of Sydney
Nemec, James M.
Canada, Victoria
Camosun College
Benkö, József M.
Hungary, Budapest
Konkoly Observatory
Berdnikov, Leonid N.
Russian Federation, Moscow
Lomonosov Moscow State University
Russian Federation, Moscow
Isaac Newton Institute of Chile
Bruntt, Hans
France, Meudon
Lesia - Laboratoire D'etudes Spatiales et D'instrumentation en Astrophysique
Evans, Nancy Remage
United States, Cambridge
Smithsonian Astrophysical Observatory
Gorynya, Natalia A.
Russian Federation, Moscow
Russian Academy of Sciences
Pastukhova, Elena N.
Russian Federation, Moscow
Russian Academy of Sciences
Grindlay, Jonathan E.
United States, Cambridge
Harvard College Observatory
Laycock, Silas G.T.
United States, Cambridge
Harvard College Observatory
Handler, Gerald
Austria, Vienna
Universität Wien
Kiss, László L.
Hungary, Budapest
Konkoly Observatory
Kolláth, Z.
Hungary, Budapest
Konkoly Observatory
Christensen-Dalsgaard, Joergen
Denmark, Aarhus
Aarhus Universitet
Kjeldsen, Henrik
Denmark, Aarhus
Aarhus Universitet
Allen, Christopher
United States, Falls Church
Northrop Grumman Corporation
Thompson, Susan E.
United States, Mountain View
Seti Institute
van Cleve, Jeffrey E.
United States, Mountain View
Seti Institute
Statistics
Citations: 20
Authors: 31
Affiliations: 22
Identifiers
Doi:
10.1111/j.1365-2966.2011.18342.x
ISSN:
00358711
Study Design
Cross Sectional Study
Cohort Study