http://arxiv.org/abs/1610.03947
The vertical flow structure in the galactic center region remains poorly understood. We analyzed the MHD simulation data by Suzuki et al. (2015) for better understanding. As a result, we found the fast downflows with a speed of ~100 km/s near the foot-points of magnetic loops. These downflows are flowing along a magnetic field line and accelerated by the gravity. The direction of the fast flows is changed by the magnetic loop geometry, as it moves. As a result, not only vertical motions but also azimuthal and radial motions are excited. This feature could be relevant to the observed high velocity dispersion in the position-velocity diagram.
K. Kakiuchi, T. Suzuki, Y. Fukui, et. al.
Fri, 14 Oct 16
3/45
Comments: 3 pages, 2 figures, modified proceeding based on a poster session at IAU 322 (The Multi-Messenger Astrophysics of the Galactic Centre)
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