On the importance of magnetotail untwisting

Jone Peter Reistad1, Nikolai Ostgaard2, Paul Tenfjord1, Karl Laundal3, Kristian Snekvik1, Stein Haaland4, Stephen E Milan5, Kjellmar Oksavik1, Harald U Frey6 and Adrian Grocott7, (1)University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, (2)University of Bergen, Department of Physics and Technology, Bergen, Norway, (3)University of Bergen, Department of Physics and Technology, Birkeland Centre for Space Science, Bergen, Norway, (4)University of Bergen, Bergen, Norway, (5)University of Leicester, Leicester, United Kingdom, (6)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (7)Lancaster University, Physics Department, Lancaster, United Kingdom