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2013MNRAS.430.3213B - Mon. Not. R. Astron. Soc., 430, 3213-3234 (2013/April-3)
Galactic winds in cosmological simulations of the circumgalactic medium.
BARAI P., VIEL M., BORGANI S., TESCARI E., TORNATORE L., DOLAG K., KILLEDAR M., MONACO P., D'ODORICO V. and CRISTIANI S.
Abstract (from CDS):
We infer that outflows in the RVWb model are least effective, with results similar to the NW case, except that the CGM is enriched more. Moreover, we find that the models CW and RVWa are similar, both showing the impact of effective winds, with the following notable differences. RVWa causes a greater suppression of star formation rate at z ≤ 5, and has a higher fraction of low-density (δ < 10), warm-hot (104-106 K) gas than in CW. Outflows in CW produce a higher and earlier enrichment of some intergalactic medium phases than in RVWa. By visual inspection, we note that the RVWa model shows galactic discs more pronounced than all the other wind models. We predict that some observational diagnostics are more promising to distinguish between different outflow driving mechanisms in galaxies: ZC of the CGM gas at r ∼ (30-300)h-1 kpc comoving, and C iv fraction of the inner gas at r < (4-5)h-1 kpc comoving.
Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)
Journal keyword(s): methods: numerical - galaxies: formation - intergalactic medium - cosmology: theory
Simbad objects: 1
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