Table 1.
Parameters used in dust and type Ia SNe distribution simulations in a typical LT or S0-type galaxy.
| Parameter | Value | Scaling relation |
|---|---|---|
| Total stellar mass [LT,S0] | log10(M★/M⊙) = [10, 10.5] | N/A |
| Optical radius [LT,S0] | R25 = [8.5, 11.5] kpc | log10(R25/kpc) = 0.26log10(M★/M⊙)−1.67 a |
| SN Ia disc parameters | ||
| Radial scale [LT,S0] | RIa ≡ R★ = [2.1, 2.9] kpc | R★ = 0.25R25 b |
| Vertical scale [LT,S0] | hIa = [0.47, 0.63] kpc | hIa = 0.055R25 c |
| Radial truncation | R25 | N/A |
| Vertical truncation | 6hIa | N/A |
| SN Ia bulge parameters | ||
| Bulge-to-total SN rate [LT,LT,S0] | Nb/Nt ≡ Mb, ★/M★ = [0, 0.3, 0.5] | N/A |
| Effective radius [LT,S0] | Re, Ia ≡ Re, ★ = [0.43, 0.57] kpc | Re/R★ = 0.2 d, e |
| Sérsic index | n = 2 | N/A |
| Truncation radius | 8Re, Ia | N/A |
| Dust disc parameters | ||
| Total dust mass [LT,S0] | log10(Md/M⊙) = [6.9, 6.1] | log10(Md/M★) = [ − 3.1, −4.4] f, g |
| Radial scale [LT,S0] | Rd = [3.0, 4.0] kpc | Rd/R★ = 1.4 h |
| Vertical scale [LT,S0] | hd = [0.26, 0.35] kpc | h★/hd = 1.8 h |
| Radial truncation | 2R25 i | N/A |
| Vertical truncation | 6hd | N/A |
Notes. The dust distribution is given by an exponential disc and the SN distribution is a sum of an exponential disc and a spherical bulge with the density profile given by the Sérsic model. The model includes three cases of the bulge-to-total SN rate ratios: 0, 0.3, and 0.5, where the latter corresponds to the S0-type galaxy. Subscripts {d, ★, b, Ia} denote respectively dust, stars, bulge and type Ia SNe. Finally, R and h are the radial and vertical disc scales, while Re is the effective radius of the Sérsic density profile. aPilyugin et al. (2021), bCasasola et al. (2017), cHakobyan et al. (2017), dLaurikainen et al. (2010), eGraham & Worley (2008), fCortese et al. (2012), gSmith et al. (2012), hXilouris et al. (1999), iSmith et al. (2016).
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