Abstract
For the last few decades the investigation of stellar magnetic activity has been conducted through spectroscopic and spectropolarimetric surveys. This led not only to the detection of magnetic cycles in other stars but also to variable and magnetic activity. For the Sun, the magnetic activity is described as the interaction between convection, rotation, and magnetic field. To study magnetic activity of solar-like stars we need to have the knowledge of the surface rotation period, the properties of magnetic activity, and the structure of the stars. We present the results obtained from the studies of Kepler solarlike targets in terms of rotation periods, magnetic activity proxies and magnetic activity cycles detected. We can then combine this information with asteroseismic studies to have a broader picture of stellar magnetic activity.
Highlights
The Kepler mission has observed more than around 200,000 stars
A new catalog of the Kepler star properties was released for 197,096 targets observed providing for instance surface gravity, effective temperature, radius, and distance and extinction ([1]). This catalog was based on isochrone fitting using inputs from asteroseismology, spectroscopy, photometry along with a Bayesian method. While all these properties are provided on the exoplanet archive, they have been used by the latest planet transit search pipeline to characterize all the planets and planet candidates discovered by the mission, in particular the ones in the habitability zone of the host star
Stellar magnetic activity is not taken into account in the habitability zone
Summary
A new catalog of the Kepler star properties was released for 197,096 targets observed providing for instance surface gravity, effective temperature, radius, and distance and extinction ([1]). This catalog was based on isochrone fitting using inputs from asteroseismology, spectroscopy, photometry along with a Bayesian method. While all these properties are provided on the exoplanet archive, they have been used by the latest planet transit search pipeline to characterize all the planets and planet candidates discovered by the mission, in particular the ones in the habitability zone of the host star.
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