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- W1593965736 abstract "We have found an effective fueling process to a central region of galaxies with weak bar-like distortion by two dimensional hydrodynamical simulations. Gravitational instability of an elongated gas ring at the inner Lindblad resonance (ILR), which has been reported as an effective fueling mechanism, are not needed for this fueling process. A massive gaseous disk in a central region of galaxies sensitively responds to the weakly distorted potential, and a large amount of gas can be fed into within $1/20$ of a core radius of the potential in several $10^7$ yr. The ILRs, the dissipative nature of the gas, and self-gravity of the gas are essential for triggering this effective fueling. The accumulation process has not been ever known: the gas accumulates to form a dense `linear' structure inclined at about 45 degree with respect to the bar potential in a {it leading sense}. We also found that a counter rotating gaseous core can be formed as a result of the fueling. The sense of the rotation of the core depends on a fraction of the gas mass to the background mass. Physical mechanism of the fueling process can be understood using a linear theory of gaseous orbits in a weak barred potential." @default.
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- W1593965736 date "1995-11-15" @default.
- W1593965736 modified "2023-09-25" @default.
- W1593965736 title "Bar-driven fuelling to a galactic central region in a massive gas disc" @default.
- W1593965736 doi "https://doi.org/10.1093/mnras/277.2.433" @default.
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