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Discovery of possible molecular counterparts to the infrared Double Helix Nebula in the Galactic center
R. Enokiya, K. Torii, M. Schultheis +23
We have discovered two molecular features at radial velocities of -35 km/s and 0 km/s toward the infrared Double Helix Nebula (DHN) in the Galactic center with NANTEN2. The two fea…
Recurrent Outbursts and Jet Ejections Expected in Swift J1644+57: Limit-Cycle Activities in a Supermassive Black Hole
Tomohisa Kawashima, Ken Ohsuga, Ryuichi Usui +3
The tidal disruption event by a supermassive black hole in Swift J1644+57 can trigger limit-cycle oscillations between a supercritically accreting X-ray bright state and a subcriti…
Dynamo activities driven by magneto-rotational instability and Parker instability in galactic gaseous disk
Mami Machida, Kenji E. Nakamura, Takahiro Kudoh +3
We carried out global three-dimensional magneto-hydrodynamic simulations of dynamo activities in galactic gaseous disks without assuming equatorial symmetry. Numerical results indi…