Monitoring Period Variations of Variable Stars using Precise Photometric Surveys

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00521629" target="_blank" >RIV/67985815:_____/19:00521629 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1017/S174392131800234X" target="_blank" >http://dx.doi.org/10.1017/S174392131800234X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/S174392131800234X" target="_blank" >10.1017/S174392131800234X</a>

Result language
angličtina
Original language name
Monitoring Period Variations of Variable Stars using Precise Photometric Surveys
Original language description
This artical described a universal method for de-trending and re-scalingprecise photometric data (Kepler, MOST, CoRoT, OGLE, ...) appropriate for period-changediagnostics of periodic variables. We demonstrated the potential of the method by analysing theperiod variability of one of the newly-identifiedKeplermagnetic chemically-peculiar (mCP)stars. We showed that, surprisingly, our target star displays near-sinusoidal changes in itsobserved light-variations, with a period of 2.85(6) years, which is apparently the result of thepresence of a nearby stellar companion. The expected long-term changes of the rotational period,as have been observed in several mCP stars, have not been identified among the sample ofKeplermCP stars.
Czech name
—
Czech description
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Project
<a href="/en/project/GC17-01752J" target="_blank" >GC17-01752J: Tautenburg-Ondřejov radial velocity follow-up of transiting planetary systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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