Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-03-24
Astrophys.J.642:L5-L8,2006
Astronomy and Astrophysics
Astrophysics
To be published in ApJL, in press. 4 pages, 4 figures; added references to work by Ferrara to sections 1 and 3.2
Scientific paper
10.1086/504469
We perform cosmological simulations of galaxies forming at z=3 using the hydrodynamics grid code, Enzo. By selecting the largest galaxies in the volume to correspond to Lyman-break galaxies, we construct observational spectra of the HI flux distribution around these objects, as well as column densities of CIV and OVI throughout a refined region. We successfully reproduce the most recent observations of the mean HI flux in the close vicinity of Lyman-break galaxies but see no evidence for the proximity effect in earlier observations. While our galaxies do return metals to the IGM, their quantity and volume appears to be somewhat less than observed. We conclude that either we do not adequately resolve galactic winds, or that at least some of the intergalactic metal enrichment is by early epoch objects whose mass is smaller than our minimum resolved halo mass.
Bryan Greg L.
Tasker Elizabeth J.
No associations
LandOfFree
The Environmental Impact of Lyman-break Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Environmental Impact of Lyman-break Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Environmental Impact of Lyman-break Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-434202