Table 4
Characteristics of the nine dynamic model atmospheres used for the spectral synthesis listed in a 2×2 table for two different sets of stellar parameters (given in the leftmost column) and two different C/O ratios (given in the top row).
| C/O = 0.48 | C/O = 0.25 | ||||||||
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| L⋆ = 4000 L⊙ | Model: | L4C048AP | L4C048CPM | Model: | L4C025AP | L4C025CPM1 | L4C025CPM2 | ||
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| M⋆ = 0.6 M⊙ | Δup | [km s-1] | 2 | 4 | Δup | [km s-1] | 2 | 4 | 4 |
| T⋆ = 3500 K | f L | 4 | 3 | f L | 4 | 3 | 3 | ||
| [Fe/H] = − 0.7 dex | Δmbol | [mag] | 0.86 | 1.35 | Δmbol | [mag] | 0.86 | 1.35 | 1.35 |
| log g = –0.26 | κ 0 | [cm2 g-1] | 0 | 3 | κ 0 | [cm2 g-1] | 0 | 3 | 3 |
| f abs | – | 1 | f abs | – | 1 | 0 | |||
| P = 200 d | ⟨ Ṁ ⟩ | [M⊙yr-1] | – | 2.0 × 10-7 | ⟨ Ṁ ⟩ | [M⊙yr-1] | – | 1.5 × 10-7 | 5.0 × 10-7 |
| ⟨ u ⟩ | [km s-1] | – | 13.0 | ⟨ u ⟩ | [km s-1] | – | 13.8 | 14.5 | |
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| L⋆ = 3000 L⊙ | Model: | L3C048AP | L3C048BP | Model: | L3C025AP | L3C025BP | |||
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| M⋆ = 0.6 M⊙ | Δup | [km s-1] | 2 | 3 | Δup | [km s-1] | 2 | 3 | |
| T⋆ = 3550 K | f L | 4 | 4 | f L | 4 | 4 | |||
| [Fe/H] = − 0.7 dex | Δmbol | [mag] | 0.59 | 0.91 | Δmbol | [mag] | 0.59 | 0.91 | |
| log g = –0.11 | κ 0 | [cm2 g-1] | 0 | 3 | κ 0 | [cm2 g-1] | 0 | 3 | |
| f abs | – | 0 | f abs | – | 0 | ||||
| P = 120 d | ⟨ Ṁ ⟩ | [M⊙yr-1] | – | – | ⟨ Ṁ ⟩ | [M⊙yr-1] | – | – | |
| ⟨ u ⟩ | [km s-1] | – | – | ⟨ u ⟩ | [km s-1] | – | – | ||
Notes. The following parameters are coded in the names of the models (e.g. L4C048AP): luminosity (L4), C/O ratio (0.48), the combination of the piston-velocity amplitude Δup and the luminosity-amplitude parameter fL (A), as well as a simplified mass-loss information (P = only pulsating, PM = pulsating and mass-losing). Notation adopted from previous works (Lebzelter et al. 2010; Nowotny et al. 2010, 2013). First column: parameters of the hydrostatic initial model (luminosity L⋆, mass M⋆, effective temperature T⋆, metallicity [Fe/H]) together with the pulsation period P of the piston at the inner boundary. Δup, fL: velocity amplitude and luminosity-amplitude parameter of the inner boundary condition (piston) used to simulate the pulsating stellar interiors; Δmbol: resulting bolometric amplitude; κ0: total dust opacity; fabs: fraction assumed to be true absorption (see Sect. 3.1); ⟨ Ṁ ⟩: mean mass-loss rate; ⟨ u ⟩: mean outflow velocity at the outer boundary.
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