Starspots and active regions on IN Com: UBVRI photometry and linear polarization |
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| Authors: | I Yu Alekseev O V Kozlova |
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| Institution: | 1. Crimean Astrophysical Observatory, Nauchny, Crimea, 298409, Russia
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| Abstract: | The activity of the variable star IN Com is considered using the latest multicolor UBVRI photometry and linear polarimetric observations carried out during a decade. The photometric variability of the star is fully described using the zonal spottedness model developed at the Crimean Astrophysical Observatory (CrAO). Spotted regions cover up to 22% of the total stellar surface, with the difference in temperatures between the quiet photosphere and the spot umbra being 600 K. The spots are located at middle and low latitudes (40°–55°). The intrinsic broad-band linear polarization of IN Com and its rotational modulation in the U band due to local magnetic fields at the most spotted (active) stellar longitudes were detected for the first time. |
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