Starspots and active regions on IN Com. UBVRI photometry and linear polarimetry

  • I.Yu. Alekseev Crimean Astrophysical Observatory of Taras Shevchenko National University of Kiev, Nauchnyi, Ukraine
  • O.V. Kozlova Crimean Astrophysical Observatory of Taras Shevchenko National University of Kiev, Nauchnyi, Ukraine

Abstract

We present the analysis of activity of variable star IN Com on the base of multicolor UBVRI photometric and linear polarimetric observations obtained during 10 years. The photometric variability of the star can be described by crimean zonal spottedness model. Starspots regions occupy up to 22 % of the total surface. The temperature difference between the unspotted photosphere, and starspots is about 600 K. Starspots are localized at low and middle (40–55o ) latitudes. We detected confidently the intrinsic broad-band linear polarization of the stellar light in the U band and its rotational modulation due to local solar-type magnetic fields at the active (most spottedness) longitudes.

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Published
2013-07-01
How to Cite
Alekseev I., Kozlova O., 2013. Izvestiya Krymskoi Astrofizicheskoi Observatorii, vol. 109, no. 3, pp. 114-122. Available at: https://jn.craocrimea.ru/index.php/izvcrao/article/view/409 (Accessed: 2December2020)
Section
Сonference proceedings