The anisotropy of sunward-propagating Alfvénic fluctuations with power-law spectra observed by Wind spacecraft

Honghong Wu1, Xin Wang2, Chuanyi Tu3, Linghua Wang4, Jiansen He3, Hui Tian3 and Eckart Marsch5, (1)Peking University, School of Earth and Space Sciences, Beijing, China, (2)Beihang University, School of Space Science and Environment, Beijing, China, (3)Peking University, Beijing, China, (4)Peking University, Institute of Space Physics and Applied Technology, Beijing, China, (5)University of Kiel, Kiel, Germany