Observing correlations between dark matter accretion and galaxy growth – I. Recent star formation activity in isolated Milky Way-mass galaxies

  title={Observing correlations between dark matter accretion and galaxy growth – I. Recent star formation activity in isolated Milky Way-mass galaxies},
  author={Christine O’Donnell and Peter Behroozi and Surhud More},
  journal={arXiv: Astrophysics of Galaxies},
The correlation between fresh gas accretion onto haloes and galaxy star formation is critical to understanding galaxy formation. Different theoretical models have predicted different correlation strengths between halo accretion rates and galaxy star formation rates, ranging from strong positive correlations to little or no correlation. Here, we present a technique to observationally measure this correlation strength for isolated Milky Way-mass galaxies with $z < 0.123$. This technique is based… 
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