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Three-phase Interstellar medium in Galaxies Resolving Evolution with Star formation and Supernova feedback (TIGRESS): Algorithms, Fiducial model, and Convergence
Chang-Goo Kim, Eve C. Ostriker
We introduce TIGRESS, a novel framework for multi-physics numerical simulations of the star-forming interstellar medium (ISM) implemented in the Athena MHD code. The algorithms of…
Superbubbles in the Multiphase ISM and the Loading of Galactic Winds
Chang-Goo Kim, Eve C. Ostriker, Roberta Raileanu
We use numerical simulations to analyze the evolution and properties of superbubbles (SBs), driven by multiple supernovae (SNe), that propagate into the two-phase (warm/cold), clou…
A Simple and Accurate Network for Hydrogen and Carbon Chemistry in the ISM
Munan Gong, Eve C. Ostriker, Mark G. Wolfire
Chemistry plays an important role in the interstellar medium (ISM), regulating heating and cooling of the gas, and determining abundances of molecular species that trace gas proper…
Chemistry and radiative shielding in star forming galactic disks
Chalence Safranek-Shrader, Mark R. Krumholz, Chang-Goo Kim +5
To understand the conditions under which dense, molecular gas is able to form within a galaxy, we post-process a series of three-dimensional galactic-disk-scale simulations with ra…
Disruption of Molecular Clouds by Expansion of Dusty H II Regions
Jeong-Gyu Kim, Woong-Tae Kim, Eve C. Ostriker
Dynamical expansion of H II regions around star clusters plays a key role in dispersing the surrounding dense gas and therefore in limiting the efficiency of star formation in mole…
Galaxy Outflows Without Supernovae
Sharanya Sur, Evan Scannapieco, Eve C. Ostriker
High surface density, rapidly star-forming galaxies are observed to have line-of-sight velocity dispersions, which are much higher than expected…