THE BARYON CONTENT OF COSMIC STRUCTURES

@inproceedings{McGaugh2010THEBC,
  title={THE BARYON CONTENT OF COSMIC STRUCTURES},
  author={Stacy S. McGaugh and James M. Schombert and W.J.G. de Blok and Matthew J. Zagursky},
  year={2010}
}
We make an inventory of the baryonic and gravitating mass in structures ranging from the smallest galaxies to rich clusters of galaxies. We find that the fraction of baryons converted to stars reaches a maximum between M 500 = 1012 and 1013 M ☉, suggesting that star formation is most efficient in bright galaxies in groups. The fraction of baryons detected in all forms deviates monotonically from the cosmic baryon fraction as a function of mass. On the largest scales of clusters, most of the… CONTINUE READING

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