Environmental Dependence of the Kennicutt-Schmidt Relation in Galaxies

  title={Environmental Dependence of the Kennicutt-Schmidt Relation in Galaxies},
  author={Nickolay Y. Gnedin and Andrey V. Kravtsov},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
We present a detailed description of a phenomenological H2 formation model and local star formation prescription based on the density of molecular (rather than total) gas. Such approach allows us to avoid the arbitrary density and temperature thresholds typically used in star formation recipes. We present results of the model based on realistic cosmological simulations of high-z galaxy formation for a grid of numerical models with varied dust-to-gas ratios and interstellar far UV (FUV) fluxes… Expand
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