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Investigation of a W UMa-type contact binary GZ And in a physical triple system
Zheng, Jie; Jiang, Lin-Qiao
GZ And is a variable star within the visually observed multiple-star system ADS 1693. Recent observations have yielded new light curves for GZ And, obtained using the Xinglong 85-cm telescope and the Transiting Exoplanet Survey Satellite (TESS) satellite. These light curves, along with radial velocity curves, were analyzed simultaneously to ascert…
Unsteady Dungey cycle from the point of view of Stokes' theorem
Semenov, Vladimir S.; Kubyshkin, Igor V.; Tsyganenko, Nikolai A. +3 more
The Dungey cycle is considered from the formation of a magnetic barrier and necessary for dayside reconnection conditions till the electric field generation around the Birkeland current loop and magnetic flux circulation balance. Data-based modeling of the magnetosheath magnetic field makes it possible to quantitatively assess the main factors tha…