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The Cosmic Ray Staircase: the Outcome of the Cosmic Ray Acoustic Instability
Tsun Hin Navin Tsung, S. Peng Oh, Yan-Fei Jiang
Recently, cosmic rays (CRs) have emerged as a leading candidate for driving galactic winds. Small-scale processes can dramatically affect global wind properties. We run two-moment…
Thermal Instabilities and Shattering in the High-Redshift WHIM: Convergence Criteria and Implications for Low-Metallicity Strong HI Absorbers
Nir Mandelker, Frank C. van den Bosch, Volker Springel +5
Using a novel suite of cosmological simulations zooming in on a Mpc-scale intergalactic sheet or "pancake" at z~3-5, we conduct an in-depth study of the thermal properties and HI c…
Survival and mass growth of cold gas in a turbulent, multiphase medium
Max Gronke, S. Peng Oh, Suoqing Ji +1
Astrophysical gases are commonly multiphase and highly turbulent. In this work, we investigate the survival and growth of cold gas in such a turbulent, multi-phase medium using thr…
A Model for Line Absorption and Emission from Turbulent Mixing Layers
Brent Tan, S. Peng Oh
Turbulent mixing layers (TMLs) are ubiquitous in multiphase gas. They can potentially explain observations of high ions such as O VI, which have significant observed column densiti…