Corpus ID: 119268590

Accretion-regulated star formation in late-type galaxies

  title={Accretion-regulated star formation in late-type galaxies},
  author={Jan Pflamm-Altenburg and Gerhard Hensler},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
We develop a four-phase galaxy evolution model in order to study the effect of accretion of extra-galactic gas on the star formation rate (SFR) of a galaxy. Pure self-regulated star formation of isolated galaxies is replaced by an accretion-regulated star formation mode. The SFR settles into an equlibrium determined entirely by the gas accretion rate on a Gyr time scale. 

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