Table 3.
Statistics of the main timescales in the gas cycle.
| 109.0 ± 0.2 M⊙ | 1010.0 ± 0.2 M⊙ | 1010.25 ± 0.2 M⊙ | 1010.75 ± 0.2 M⊙ | 1011.25 ± 0.2 M⊙ | |
|---|---|---|---|---|---|
| Full sample | |||||
| 259090 | 11.1% | 2.0% | 1.4% | 0.6% | 0.0% |
| Timescales | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] |
| torb (Myr) | [71.48, 132.42, 210.06] | [32.38, 67.23, 118.72] | [29.12, 61.81, 108.64] | [17.38, 45.52, 100.14] | [16.63, 36.94, 106.27] |
| tcool (Myr) | [2.281, 7.913, 28.065] | [0.616, 1.791, 5.333] | [0.527, 1.527, 4.041] | [0.263, 1.140, 4.030] | [0.326, 1.325, 5.042] |
| tfrag (Myr) | [7.929, 16.453, 31.759] | [3.152, 6.811, 13.585] | [2.684, 5.865, 11.290] | [1.587, 4.311, 9.970] | [1.790, 3.883, 11.050] |
| tdisrupt (Myr) | [7.732, 15.892, 28.138] | [3.111, 6.672, 12.628] | [2.642, 5.874, 10.966] | [1.481, 4.328, 9.919] | [1.661, 3.733, 10.815] |
| tsfg (Myr) | [864.5, 974.5, 1577.5] | [255.8, 390.2, 903.2] | [181.0, 280.2, 615.8] | [139.5, 182.3, 878.4] | [91.7, 181.1, 897.2] |
| Ratios | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] |
| tcool/torb | [0.029, 0.055, 0.143] | [0.018, 0.025, 0.042] | [0.017, 0.023, 0.035] | [0.012, 0.022, 0.042] | [0.014, 0.029, 0.058] |
| 𝒯cool/tcool | [1.781, 2.694, 3.556] | [2.982, 3.488, 3.746] | [3.171, 3.472, 3.757] | [3.058, 3.445, 4.199] | [2.963, 3.312, 4.314] |
| tfrag/torb | [0.105, 0.118, 0.151] | [0.088, 0.096, 0.115] | [0.083, 0.092, 0.107] | [0.075, 0.088, 0.113] | [0.075, 0.093, 0.124] |
| tsfg/torb | [5.48, 8.30, 18.55] | [4.13, 6.55, 13.47] | [3.36, 5.36, 11.69] | [2.57, 5.36, 18.16] | [2.12, 6.16, 32.75] |
| tsfg/tfrag | [43.63, 69.07, 137.39] | [41.00, 65.86, 123.26] | [35.63, 57.21, 115.10] | [29.59, 57.33, 169.20] | [24.12, 60.52, 235.34] |
| 109.0 ± 0.2 M⊙ | 1010.0 ± 0.2 M⊙ | 1010.25 ± 0.2 M⊙ | 1010.75 ± 0.2 M⊙ | 1011.25 ± 0.2 M⊙ | |
| Star-forming sample | |||||
| 76762 | 2.2% | 1.5% | 1.1% | 0.3% | 0.0% |
| Timescales | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] |
| torb (Myr) | [65.87, 129.84, 209.79] | [30.95, 65.21, 115.34] | [28.80, 60.72, 105.58] | [18.18, 45.44, 98.73] | [11.16, 47.99, 109.13] |
| tcool (Myr) | [1.738, 6.264, 16.940] | [0.547, 1.504, 3.506] | [0.471, 1.355, 2.933] | [0.191, 0.804, 2.395] | [0.070, 0.801, 3.186] |
| 𝒯cool (Myr) | [6.024, 17.445, 36.808] | [1.967, 5.358, 11.648] | [1.673, 4.771, 9.871] | [0.794, 2.929, 8.081] | [0.355, 3.290, 9.476] |
| tfrag (Myr) | [7.059, 14.864, 26.348] | [2.914, 6.132, 11.352] | [2.542, 5.504, 9.915] | [1.407, 3.806, 8.482] | [0.713, 3.976, 9.133] |
| tdisrupt (Myr) | [7.166, 15.119, 26.448] | [2.937, 6.252, 11.630] | [2.584, 5.608, 10.130] | [1.429, 3.906, 8.714] | [0.714, 4.146, 9.505] |
| tsfg (Myr) | [834.8, 943.1, 1162.4] | [255.4, 382.5, 590.6] | [174.4, 269.8, 400.7] | [105.2, 166.7, 262.0] | [69.4, 99.3, 175.9] |
| Ratios | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] | [p15, p50, p85] |
| tcool/torb | [0.029, 0.055, 0.143] | [0.018, 0.025, 0.042] | [0.017, 0.023, 0.035] | [0.012, 0.022, 0.042] | [0.014, 0.029, 0.058] |
| 𝒯cool/tcool | [1.781, 2.694, 3.556] | [2.982, 3.488, 3.746] | [3.171, 3.472, 3.757] | [3.058, 3.445, 4.199] | [2.963, 3.312, 4.314] |
| tfrag/torb | [0.104, 0.115, 0.132] | [0.087, 0.094, 0.104] | [0.082, 0.091, 0.099] | [0.072, 0.083, 0.092] | [0.067, 0.081, 0.095] |
| tsfg/torb | [5.33, 7.61, 12.45] | [3.88, 5.81, 9.11] | [3.17, 4.76, 7.60] | [2.07, 3.70, 7.31] | [1.32, 2.30, 7.58] |
| tsfg/tfrag | [43.41, 64.93, 114.44] | [39.95, 60.73, 97.30] | [34.20, 51.90, 85.50] | [24.63, 42.88, 89.36] | [14.79, 30.06, 124.96] |
Notes. The model galaxies used for this analysis all lie at z = 2.1. Median values and 15% and 85% percentiles are given for five different stellar mass bins. The upper table shows statistics of the fully resolved galaxy sample. The lower table shows the star-forming sample. In each sub-table, the upper part shows absolute values of the timescales and the lower part shows the ratios with the orbital time or gas fragmentation timescales.
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