WHERE ARE THE BARYONS? II. FEEDBACK EFFECTS

@article{Cen2006WHEREAT,
  title={WHERE ARE THE BARYONS? II. FEEDBACK EFFECTS},
  author={Renyue Cen and Jeremiah P. Ostriker},
  journal={The Astrophysical Journal},
  year={2006},
  volume={650},
  pages={560-572}
}
Numerical simulations of the intergalactic medium have shown that at the present epoch, a significant fraction (40%-50%) of the baryonic component should be found in the (T ~ 106 K) warm-hot intergalactic medium (WHIM)—with several recent observational lines of evidence indicating the validity of the prediction. We here recompute the evolution of the WHIM with the following major improvements: (1) galactic superwind feedback processes from galaxy and star formation are explicitly included; (2… Expand
Where Are the Baryons? III. Nonequilibrium Effects and Observables
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Observations of the missing baryons in the warm–hot intergalactic medium
TLDR
Observations of two absorbers of highly ionized oxygen in the X-ray spectrum of a quasar account for the missing baryons in the Universe, and their number agrees well with numerical simulation predictions for the long-sought warm–hot intergalactic medium. Expand
The intergalactic medium over the last 10 billion years – I. Lyα absorption and physical conditions
The intergalactic medium (IGM) is the dominant reservoir of baryons at all cosmic epochs. In this paper, we investigate the evolution of the IGM from z = 2 → 0i n (48h −1 Mpc) 3 , 110million particleExpand
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A significant fraction (40%-50%) of baryons at the present epoch are predicted to be shock-heated to the warm-hot intergalactic medium (WHIM) by our previous numerical simulations. Here we recomputeExpand
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