|Title: ||Non-Blazhko RR Lyrae Stars Observed with the KEPLER Space Telescope|
|Authors: ||Nemec, J.M.|
|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: ||http://arxiv.org/html/1109.1324|
|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|