Astronomy & Astrophysics

Table 1: Factors $\Delta t_{\rm Ly\alpha }/ {\Delta t _{\rm P}}$ for different $z_{\rm in}$ and $z_{\rm out}$ and $\Delta t_{\rm Ly\alpha }= 2 \times 10^8$ yr (for $H_0 = 70 ~ \mbox{km~s$^{-1}$\space Mpc$^{-1}$ }$ ).
Table 2: Schechter function parameter for the different Hubble types according to Marzke et al. (1994).
Table 3: Effective bulge mass-to-light ratio $\Upsilon ^{\rm eff}_{T}$ for the different Hubble types.
Table 4: Parameters of the model and their value range explored in this paper. The values of the "basic model " are chosen in such a way that the model is in agreement with recent observations (see Sect. 7.2 )