Table 4
Initial conditions and gas expulsion parameters for the computed model clusters that include a gas expulsion phase.
| Mcl(0) /M⊙ | rh(0)/pc | Mg(0) /M⊙ | V∗(0)/ km s-1 |  / km s-1 |
|
τg/ Myr | τd/ Myr |
|
|
|||||||
| 104 | 0.15 | 2 × 104 | 14.7 | 25.5 | 0.006 | 0.015 | 0.6 |
| 3 × 104 | 0.15 | 6 × 104 | 25.8 | 44.7 | 0.003 | 0.015 | 0.6 |
| 104 | 0.30 | 2 × 104 | 10.5 | 18.2 | 0.016 | 0.030 | 0.6 |
| 3 × 104 | 0.30 | 6 × 104 | 18.1 | 31.3 | 0.010 | 0.030 | 0.6 |
| 105 | 0.30 | 2 × 105 | 33.1 | 57.3 | 0.005 | 0.030 | 0.6 |
| 104 | 1.0 | 2 × 104 | 5.8 | 10.0 | 0.100 | 0.100 | 0.6 |
| 3 × 104 | 1.0 | 6 × 104 | 10.0 | 17.3 | 0.058 | 0.100 | 0.6 |
| 105 | 1.0 | 2 × 105 | 18.2 | 31.5 | 0.032 | 0.100 | 0.6 |
|
|
|||||||
| 3 × 104 | 1.0 | 6 × 104 | 9.9 | 17.1 | 0.058 | 2.5, 5.0 | 0.0 |
| 3 × 104 | 2.0 | 6 × 104 | 7.0 | 12.1 | 0.165 | 2.5, 5.0 | 0.0 |
| 3 × 104 | 3.0 | 6 × 104 | 5.8 | 10.0 | 0.300 | 2.5, 5.0 | 0.0 |
| 3 × 104 | 4.0 | 6 × 104 | 5.0 | 8.7 | 0.460 | 2.5, 5.0 | 0.0 |
| 105 | 2.0 | 2 × 105 | 12.9 | 22.3 | 0.090 | 5.0 | 0.0 |
| 105 | 3.0 | 2 × 105 | 10.5 | 18.2 | 0.165 | 5.0 | 0.0 |
| 105 | 4.0 | 2 × 105 | 9.1 | 15.8 | 0.253 | 5.0 | 0.0 |
Notes. The columns from left to right give (a) total initial stellar mass Mcl(0); (b) initial stellar half-mass radius rh(0); (c) initial gas (potential, see Sect. 3) mass Mg(0); which follows the stellar profile, (d) virial velocity dispersion V∗(0); (e) scaled velocity dispersion ; (f) the corresponding crossing time (dynamical time) 
; (g) timescale for gas (potential) dilution τg; and (h) the time τd, at which the gas expulsion begins. Here, is the virial velocity dispersion at which the stellar velocities are boosted so that the intended rh(0) can be maintained when the gas potential is applied. For Mg(0) ≈ 2Mcl(0) (i.e. ϵ ≈ 33% star formation efficiency), as it is here, 
, which determines the dynamical time, , of the initial gas-embedded clusters. These initial clusters are located at RG ≈ 8 kpc Galactocentric distance (the solar distance) and they orbit the Galactic center with VG ≈ 220 km s-1.
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