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Structure of magnetic fields in NOAA active regions 0486 and 0501 and in the associated interplanetary ejecta

Yurchyshyn, Vasyl; Abramenko, Valentyna; Hu, Qiang

Spectacular burst of solar activity in October-November 2003, when large solar spots and intense solar flares dominated the solar surface for many consecutive days, caused intense geomagnetic storms. In this paper we analyze solar and interplanetary magnetic fields associated with the storms in October-November 2003. We used space- and ground-base…