Published July 22, 2021 | Version v1
Poster Open

Modeling starspots on low mass star GJ 1243 observed by TESS

  • 1. Astronomical Institute, University of Wrocław, Kopernika 11, 51-622 Wrocław, Poland

Description

Quasi-periodic modulations of the stellar light curve may result from dark spots crossing the visible stellar disc. Since the release of the first TESS sector the possibility of examining such quasi-periodic modulations by assumed dark spots has increased. Thanks to this observations we tried to detect starspot coverage of low mass stars with visible variability of their luminosity. Using the light curves from TESS satellite and the new, BASSMAN package to fit spot models of different complexities, will constructed starspots distribution on individual stars. These models will then be tested to reveal a connection between the starspots and the stellar flares, in order to provide insight into the overall stellar magnetic field. Here we present results of modeling of starspots on GJ 1243 with our new tool and compare the results with the previous reconstructions of the spatial distribution.

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