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arXiv · 1610.03947

Vertical flows and structures excited by magnetic activity in the Galactic center region

Kensuke Kakiuchi·Takeru K. Suzuki·Yasuo Fukui·Kazufumi Torii·Mami Machida·Ryoji Matsumoto
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Abstract

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.

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Kensuke Kakiuchi, Takeru K. Suzuki, Yasuo Fukui, Kazufumi Torii, Mami Machida, Ryoji Matsumoto. 2016-10-13. Vertical flows and structures excited by magnetic activity in the Galactic center region. https://doi.org/10.1017/s174392131601190x

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