| |
 |
| Paper: |
Effect of Galactic
Wind on the Chemical Evolution of Galaxies |
| Volume: |
446, Galaxy Evolution: Infrared to Millimeter Wavelength Perspective |
| Page: |
165 |
| Authors: |
Tan, F.-F.; Chen, J.-Z.; Luo, Z.-J. |
| Abstract: |
Based on the galaxy formation and mass outflow models suggested by
Mo et al. (1998) and Shu et al. (2005), the correlation between the
galactic wind velocities and the escaping velocities of potential
wells of galactic dark matter halos is discussed. It is found there
is a critical value of the rotation velocities of galaxies (∼
100 – 150 km s–1), below which the mass outflows really
escape from their host gravitational potentials, otherwise the mass
outflows fall back to the galaxies to form galactic fountains.
Taking this into account and assuming that small galaxies lead to
strong mass loss due to galactic winds, we can reproduce the
observed mass-metallicity relation for disk galaxies fairly well. |
|
|
|
|
|
