183 citations · 4.2k across the 75 of their papers we have counts for
5 papers · 2 filters
Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves
Yutaka Fujita, Takeru Ken Suzuki, Keiichi Wada
Using an analytical model and numerical simulations, we show that acoustic waves generated by turbulent motion in intracluster medium effectively heat the central region of a so-ca…
Fueling Gas to the Central Region of Galaxies
Keiichi Wada
Supplying gas to the galactic central regions is one of key ingredients for AGN activity. I will review various fueling mechanisms for a R ~ 1 kpc region, determined mainly by nume…
Instabilities of Spiral Shocks I: Onset of Wiggle Instability and its Mechanism
Keiichi Wada, Jin Koda
We found that loosely wound spiral shocks in an isothermal gas disk caused by a non-axisymmetric potential are hydrodynamically unstable, if the shocks are strong enough. High reso…
Feedback From the First Supernovae in Protogalaxies:The Fate of the Generated Metals
K. Wada, A. Venkatesan
We investigate the chemo-dynamical effects of multiple supernova explosions in the central region of primordial galaxies using three-dimensional hydrodynamical simulations of the i…
Molecular Hydrogen in Damped Ly-alpha Systems: Spatial Distribution
H. Hirashita, A. Ferrara, K. Wada +1
To interpret H_2 quasar absorption line observations in Damped Ly-alpha clouds (DLAs), we model the H_2 spatial distribution within a DLA. Based on numerical simulations of disk st…