| Issue |
A&A
Volume 390, Number 1, July IV 2002
|
|
|---|---|---|
| Page(s) | 133 - 137 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20020654 | |
| Published online | 05 July 2002 | |
Blazhko stars: Always distorted?
Konkoly Observatory of the Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, Hungary e-mail: jurcsik,szeidl@konkoly.hu
Corresponding author: J. M. Benkő, benko@konkoly.hu
Received:
25
February
2002
Accepted:
4
April
2002
A reexamination of the amplitude ratios of the photometric and radial velocity changes of Blazhko RRab stars in their different Blazhko phases shows that a normal amplitude ratio occurs near the phase of maximum amplitude. Checking the Fourier parameters of maximum amplitude light curves with different methods proved, however, that none of these light curves can be regarded as a normal RR Lyrae type light curve.
Key words: stars: variables: RR Lyr / stars: oscillations / techniques: photometric / techniques: radial velocities
© ESO, 2002
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