Cyclic Variations in the Periods of RR Lyrae Stars

Date Issued
2018
Author(s)
•
Le Borgne, Jean-François
•
Klotz, Alain
•
•
Correa, Mercedes
Abstract
We report here on two types of cyclic variations that can be observed in the periods of RR Lyrae stars, i.e., the Blazhko and the light-time effects. The former has been investigated by studying the amplitude variations recorded in RR Lyr itself, firstly by Kepler and then by the network of the ``Very Tiny Telescopes'' (VTTs), the latter on the basis of the new spectroscopic observations of the most promising candidate, KIC 2831097. The start of the search for binary candidates in the RR Lyrae stars observed with the TAROT telescopes is also announced.
Coverage
The RR Lyrae 2017 Conference. Revival of the Classical Pulsators: from Galactic Structure to Stellar Interior Diagnostics
All editors
Smolec, R.; Kinemuchi, K.; Anderson, R.I.
Series
Volume
6
Start page
151
Conferenece
The RR Lyrae 2017 Conference. Revival of the Classical Pulsators: from Galactic Structure to Stellar Interior Diagnostics
Conferenece place
Niepołomice, Poland
Conferenece date
17-21 September, 2017
Uri
Url
Issn Identifier
2545-1022
Ads BibCode
2018pas6.conf..151P
Rights
open.access
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