56 citations · 213 across the 11 of their papers we have counts for
5 papers · 1 filter
A Magnetic Field Connecting the Galactic Center Circumnuclear Disk with Streamers and Mini-spiral -Implications from 850 m Polarization Data
Pei-Ying Hsieh, Patrick M. Koch, Woong-Tae Kim +3
Utilizing James Clark Maxwell Telescope (JCMT) 850 m SCUPOL dust polarization data, we investigate the configuration of the magnetic () field in the circumnuclear disk (CND)…
Molecular Gas Feeding the Circumnuclear Disk of the Galactic Center
Pei-Ying Hsieh, Patrick M. Koch, Paul T. P. Ho +5
The interaction between a supermassive black hole (SMBH) and the surrounding material is of primary importance in modern astrophysics. The detection of the molecular 2-pc circumnuc…
Spiral Density Waves in M81. II. Hydrodynamic Simulations for Gas Response to Stellar Spiral Density Waves
Hsiang-Hsu Wang, Wing-Kit Lee, Ronald E. Taam +2
Gas response to the underlying stellar spirals is explored for M81 using unmagnetized hydrodynamic simulations. Constrained within the uncertainty of observations, 18 simulations a…
Spiral Density Waves in M81. I. Stellar Spiral Density Waves
Chien-Chang Feng, Lien-Hsuan Lin, Hsiang-Hsu Wang +1
Aside from the grand-design stellar spirals appearing in the disk of M81, a pair of stellar spiral arms situated well inside the bright bulge of M81 has been recently discovered by…
Equilibrium Initialization and Stability of Three-Dimensional Gas Disks
Hsiang-Hsu Wang, Ralf S. Klessen, Cornelis P. Dullemond +2
We present a new systematic way of setting up galactic gas disks based on the assumption of detailed hydrodynamic equilibrium. To do this, we need to specify the density distributi…