Chemical and Photometric Evolution Models for Disk, Irregular, and Low Mass Galaxies

Figure 17

Evolution of the radial distributions of oxygen abundance for a MWG-like galaxy (number 5 from Table 1). (a) With a star formation efficiency in the halo, 𝜖_𝜅=0.003. (b) Without star formation in the halo 𝜖_𝜅=0.

(a)

(b)