Yu Liu Jr Scientific Researcher Ph.D, National Astronomical Observatories of China, 2002 Research Solar activity observations (flare, filament, surge,sunspot); Coronal magnetic field analysis (SOLARC) Main Experience 2002 -- 2003, staff of  HSOS/NAOC, Beijing; 2003 -- 2005, Post-Doc of Kyoto University; 2005 -- 2008, IfA/Maui, Hawai'i University; 2008 -- present, YNAO/NAOC, Kunming Recent Publications Observational Evidence of a Magnetic Flux Rope Eruption Associated with the X3 Flare on 2002 July 15 Liu, Yu; Jiang, Yunchun; Ji, Haishen; Zhang, Hongqi; Wang, Haimin Astrophysical Journal, 593, L137-L140 (2003) Formation of Opposite-Sign Magnetic Helicity by an Erupting Filament in a Coronal Mass Ejection Liu, Yu; Kurokawa, Hiroki Publications of the Astronomical Society of Japan, 56, 497-507 (2004) On a Surge: Properties of an Emerging Flux Region Liu, Yu; Kurokawa, Hiroki Astrophysical Journal, 610, 1136-1147 (2004) Observations of an Emerging Flux Region Surge: Implications for Coronal Mass Ejections Triggered by Emerging Flux Liu, Y.; Su, J. T.; Morimoto, T.; Kurokawa, H.; Shibata, K Astrophysical Journal, 628, 1056-1060 (2005) A Study On Surges: I. Automatic Detection Of Dynamic Halpha Dark Features From High-Cadence Full-Disk Observations Liu, Y.; Kurokawa, H.; Kitai, R.; Ueno, S.; Su, J. T. Solar Physics, 228, 149-164 (2005) Production of Filaments by Surges Liu, Yu; Kurokawa, Hiroki; Shibata, Kazunari Astrophysical Journal, 631, L93-L96 (2005)
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