Fig. 4.
From: The origin of dust in galaxies revisited: the mechanism determining dust content
Star-formation history (time evolution of star formation rate) normalized by the average rate. The histogram is the observed history at the solar neighborhood reported by Rocha-Pinto et al. (2000a). The filled circles with error-bars are the average of the histogram over a 4-Gyr interval and corrected by the average rate only for an age less than 12 Gyr which is the present age of the Milky Way assumed in this paper. The vertical error-bars are the standard error of the mean. The four lines correspond to the time evolutions with four different sets of time-scales of star formation and infall (Ï„SF/Gyr, Ï„in/Gyr) as indicated in the panel.