Table 1
Initial properties of the two primary galaxy models G1 and G2 used in this study.
| G1a (G1b, G1c) | G2 | ||
|
|
|||
| c | 9 | 10 | |
| v 200 | [km s-1] | 170 | 110 |
| λ | 0.033 | 0.04 | |
| m d | 0.041 | 0.041 | |
| m b | 0.01367 | 0 | |
| f gas | 0.35 | 0.35 | |
| z 0 | 0.2 | 0.2 | |
| M DM | [h-1M⊙] | 1.02 × 1012 | 2.95 × 1011 |
| M gas,d | [h-1M⊙] | 1.64 × 1010 | 4.44 × 109 |
| M ⋆,d | [h-1M⊙] | 3.04 × 1010 | 8.25 × 109 |
| M ⋆,b | [h-1M⊙] | 1.56 × 1010 | 0 |
| M gas,h | [h-1M⊙] | 6.24(3.12,0.0625) × 1010 | 1.26 × 109 |
| r 0 | [h-1 kpc] | 2.60943 | 2.2063 |
| a b | [h-1 kpc] | 0.5219 | – |
Notes. We specify the principal structure of these models (in particular total mass and disk) with choices for the concentration parameter c, rotation velocity v200 at the virial radius r200, and spin parameter λ. The values md and mb are the disk and bulge mass fractions, respectively, with fgas specifying the initial amount of gas in the disk and z0 giving the disk height as a fraction of the disk scale length r0 (equal for both the stellar and gaseous disk). The latter is determined by the spin parameter. The value ab is the scale factor of the Hernquist profile describing the bulge. These parameters also determine other resulting properties of the corresponding model galaxy, in particular the masses of the different components, as listed in the table. The amount Mgas,h of gas in the hot corona around the galaxies is chosen freely. Here we investigate three different choices (G1a, G1b, G1c) for galaxy model G1, and only one choice for G2.
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