Sep 21 – 23, 2015
Royal Observatory of Belgium
Europe/Brussels timezone

Can we use stellar photometric data to better understand solar variability?

Sep 21, 2015, 2:30 PM
Meridian Room (Royal Observatory of Belgium)

Meridian Room

Royal Observatory of Belgium

Avenue Circulaire - 3 - Ringlaan 1180 Brussels
2-Solar modelling


Dr Alexander Shapiro (Max-Planck-Institut für Sonnensystemforschung)


Despite significant progress our understanding of solar brightness variation is still incomplete. In particular, the magnitude and even the phase (in the visible part of the spectrum) of the solar brightness variation over the course of the activity cycle remain highly controversial. Also the magnitude of solar irradiance changes on centennial and longer time scale is uncertain. An alternative way to improve and deepen our understanding of solar variability on all time scales is to test and validate the available solar models against photometric records of Sun-like stars. The solar-stellar comparative studies are starting to attract attention and has already been employed in the literature to constrain solar brightness variability. The interest in solar-stellar comparison has been recently rekindled by the launch of the Kepler and Corot space missions and anticipation of the TESS and PLATO missions. We give an overview of recent progress in the area and discuss how solar and stellar research may benefit from the mutual synergies.

Primary author

Dr Alexander Shapiro (Max-Planck-Institut für Sonnensystemforschung)


Dr Natalie Krivova (Max-Planck-Institut für Sonnensystemforschung) Prof. Sami K. Solanki (Max-Planck-Institut für Sonnensystemforschung)

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