Title: Non-Blazhko RR Lyrae Stars Observed with the KEPLER Space Telescope
Authors: Nemec, J.M.
Smolec, R.
Benkö, J.
Moskalik, P.
Kolenberg, Katrien
Szabó, R.
Kurtz, D.W.
Bryson, S.
Guggenberger, E.
Chadid, M.
Jeon, Y.-B.
Kunder, A.
Layden, A.C.
Kinemuchi, K.
Kiss, L.L.
Poretti, E.
Christensen-Dalsgaard, J.
Kjeldsen, H.
Caldwell, D.
Ripepi, V.
Derekas, A.
Nuspl, J.
Mulally, F.
Thompson, S.E.
Borucki, W.J.
Issue Date: Aug-2011
Publisher: The Observatories of the Carnegie Institution of Washington
Host Document: RR Lyrae Stars, Metal-Poor Stars, and the Galaxy; Carnegie Observatories %Astrophysics Series vol:5 pages:84
Conference: R Lyrae Stars, Metal-Poor Stars, and the Galaxy location:Pasadena CA, USA
Article number:
Abstract: This paper summarizes the main results of our recent study of the non-Blazhko RR Lyrae stars observed with the Kepler space telescope. These stars offer the opportunity for studying the stability of the pulsations of RR Lyrae stars and for providing a reference against which the Blazhko RR Lyrae stars can be compared. Of particular interest is the stationarity of the low-dispersion (sigma < 1mmag) light curves constructed from ˜18000 long-cadence (30-min) and (for FN Lyr and AW Dra) the ˜150000 short-cadence (1-min) photometric data points.
Fourier-based [Fe/H] values and other physical characteristics are also derived. When the observed periods are compared with periods computed with the Warsaw non-linear convective pulsation code better agreement is achieved assuming pulsational L and M values rather than the (higher) evolutionary L and M values.
Publication status: published
KU Leuven publication type: IC-p
Appears in Collections:Institute of Astronomy

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