Open Access
Table 2
Initial galaxy parameters for the merger simulations.
| Description | Sa | Sb | |
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|
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| M vir | Virial mass (M⊙) | 1.70 × 1011 | 1.70 × 1011 |
| f gas | Disk mass fraction | 0.095 | 0.107 |
| f bulge | Bulge mass fraction | 0.063 | 0.027 |
| f gas | Gas mass fraction | 0.008 | 0.033 |
| B/T | Bulge-to-total-mass ratio | 0.4 | 0.2 |
| λ | Disk spin parameter | 0.05 | 0.05 |
| R d | Disk scale length (kpc) | 2.58 | 3.29 |
| b | Bulge scale length (kpc) | 0.52 | 0.66 |
| z 0 | Disk scale height (kpc) | 0.52 | 0.66 |
| N total | Total number of particles | 775 009 | 857 875 |
| N halo | Number of halo particles | 353 142 | 353 142 |
| N disk | Number of disk particles | 322 050 | 361 600 |
| N bulge | Number of bulge particles | 71 567 | 30 133 |
| N gas | Number of gas particles | 28 250 | 113 000 |
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