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Investigating magnetic activity of F stars with the Kepler mission

Bibcode
2014IAUS..302..222M
DOI
10.1017/S1743921314002130
Mathur, S.; García, R. A.; Ballot, J.; Ceillier, T.; Salabert, D.; Metcalfe, T. S.; Régulo, C.; Jiménez, A.; Bloemen, S.
Bibliographical reference

Magnetic Fields throughout Stellar Evolution, Proceedings of the International Astronomical Union, IAU Symposium, Volume 302, pp. 222-223

Advertised on:
8
2014
Number of authors
9
IAC number of authors
2
Citations
1
Refereed citations
1
Description
The dynamo process is believed to drive the magnetic activity of stars like the Sun that have an outer convection zone. Large spectroscopic surveys showed that there is a relation between the rotation periods and the cycle periods: the longer the rotation period is, the longer the magnetic activity cycle period will be. We present the analysis of F stars observed by Kepler for which individual p modes have been measure and with surface rotation periods shorter than 12 days. We defined magnetic indicators and proxies based on photometric observations to help characterise the activity levels of the stars. With the Kepler data, we investigate the existence of stars with cycles (regular or not), stars with a modulation that could be related to magnetic activity, and stars that seem to show a flat behaviour.
Related projects
Helio and Asteroseismology
Helio and Astero-Seismology and Exoplanets Search

The principal objectives of this project are: 1) to study the structure and dynamics of the solar interior, 2) to extend this study to other stars, 3) to search for extrasolar planets using photometric methods (primarily by transits of their host stars) and their characterization (using radial velocity information) and 4) the study of the planetary

Savita
Mathur
In progress
Type
Non-refereed
Stellar activity
F stars
Stellar & Interstellar Physics (FEEI)

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