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Pressure Relations and Vertical Equilibrium in the Turbulent, Multiphase ISM
H. Koyama, E. C. Ostriker
We use numerical simulations of turbulent, multiphase, self-gravitating gas orbiting in model disk galaxies to study the relationships among pressure, the vertical gas distribution…
Gas Properties and Implications for Galactic Star Formation in Numerical Models of the Turbulent, Multiphase ISM
H. Koyama, E. C. Ostriker
Using numerical simulations of galactic disks resolving scales from ~1 to several hundred pc, we investigate dynamical properties of the multiphase ISM with turbulence driven by st…
Detection of Dense Molecular Gas in Inter-Arm Spurs in M51
S. A. Corder, K. Sheth, N. Z. Scoville +3
Spiral arm spurs are prominent features that have been observed in extinction and 8m emission in nearby galaxies. In order to understand their molecular gas properties, we used…
Cloud and Star Formation in Disk Galaxy Models with Feedback
Rahul Shetty, Eve C. Ostriker
We include feedback in global hydrodynamic simulations in order to study the star formation properties, and gas structure and dynamics, in models of galactic disks. We extend previ…
Galactic Spiral Shocks with Thermal Instability
Chang-Goo Kim, Woong-Tae Kim, Eve C. Ostriker
Using one-dimensional hydrodynamic simulations including interstellar heating, cooling, and thermal conduction, we investigate nonlinear evolution of gas flow across galactic spira…
Magnetically Aligned Velocity Anisotropy in the Taurus Molecular Cloud
Mark Heyer, Hao Gong, Eve Ostriker +1
Velocity anisotropy induced by MHD turbulence is investigated using computational simulations and molecular line observations of the Taurus molecular cloud. A new analysis method i…