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Embryonic cluster galaxy immersed in giant cloud of cold gas
Embryonic cluster galaxy immersed giant cloud of cold gas
2016/12/13
Astronomers studying a cluster of still-forming protogalaxies seen as they were more than 10 billion years ago have found that a giant galaxy in the center of the cluster is forming from a surprisingl...
An HI column density threshold for cold gas formation in the Galaxy
column density threshold cold gas formation Galaxy
2011/9/28
We report the discovery of a threshold in the HI column density of Galactic gas clouds below which the formation of the cold phase of HI is inhibited. This threshold is at $N_{HI} = 2 \times 10^{20}$ ...
The Cold Gas Content of Bulgeless Dwarf Galaxies
galaxies: dwarf– galaxies: evolution – galaxies: formation – methods:N-body simulations
2011/10/9
We present an analysis of the neutral hydrogen (HI) properties of a fully cosmological hydrodynamical dwarf galaxy, run with varying simulation parameters. As reported by Governato et al. (2010), the ...
The spatial distribution of cold gas in hierarchical galaxy formation models
galaxy clustering
2010/3/9
The distribution of cold gas in dark matter haloes is driven by key processes in galaxy formation: gas cooling, galaxy mergers, star formation and reheating of gas by supernovae. We compare the predic...