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Simulation Details:

ParameterValueDescription
nameIllustris-3-Darksimulation name
name altL75n455DMalternative simulation name
descriptionLow resolution (level 3) Illustris run - dark matter only analog.short description of run
boxsize75000.0side length of simulation box [ckpc/h]
mass gas0.0average gas cell mass [10^10 msun/h] (0=no gas)
mass dm0.0338857141965dark matter particle mass [10^10 msun/h]
num dm94196375number of dark matter particles
num tr mc0number of gas tracer particles
z start127.0starting redshift (e.g. z=99)
z final0.0ending redshift (e.g. z=0)
cosmologyWMAP-9short description of cosmological parameters (e.g. 'WMAP-7')
omega 00.2726total matter density (e.g. 0.27)
omega L0.7274dark energy density (e.g. 0.73)
omega B0.0baryonic matter density (e.g. 0.04)
hubble0.704hubble constant 'little h' in units of [100 km/s/Mpc]
physics modelDM-onlyshort description of implemented physics models
has coolingFalseradiative gas cooling (false for non-radiative runs)
has starformationFalsestar formation (false for non-radiative runs)
has windsFalsegalactic-scale winds from star formation feedback (fiducial parameters)
has blackholesFalsesupermassive blackhole formation, accretion, and feedback channels, fiducial parameters
is uniformTrueuniform mass, full periodic, cosmological volume
is subboxFalsenon-periodic subbox embedded within a larger volume (high time resolution)
has fofTrue[friends of friends] group catalogs exist
has subfindTrue[subfind] group catalogs exist
has rockstarFalse[rockstar] group catalogs exist
has lhalotreeFalse[lhalotree] merger tree exists
has sublinkTrue[sublink] merger tree exists
has ctreesFalse[consistent trees] merger tree exists

Snapshot List:

Illustris-3-Dark has [136] snapshots available, with 435.9 GB total data volume.

Over all snapshots, have 8,390,217 FoF groups, 9,630,731 Subfind groups, and 12,810,707,000 particles.

Snapshot
[#]
Redshift Age
[Gyr]
Lookback
[Gyr]
Gas Cells
[#]
Stars
[#]
BHs
[#]
FoF
Groups [#]
Subfind
Groups [#]
Download
Snapshot
Download
FoF & Subfind
0 46.77 0.054 13.698 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
1 44.56 0.058 13.694 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
2 42.45 0.062 13.690 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
3 40.64 0.066 13.686 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
4 38.71 0.071 13.681 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
5 36.87 0.076 13.676 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
6 35.12 0.082 13.670 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
7 33.61 0.087 13.665 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
8 32.01 0.094 13.658 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
9 30.48 0.100 13.651 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
10 29.03 0.108 13.644 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
11 27.64 0.116 13.636 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
12 26.44 0.123 13.628 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
13 25.17 0.132 13.619 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
14 23.96 0.142 13.609 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
15 22.81 0.153 13.599 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
16 21.81 0.163 13.589 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
17 20.76 0.175 13.577 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
18 19.75 0.188 13.564 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
19 18.79 0.201 13.550 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
20 17.96 0.215 13.537 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
21 17.09 0.231 13.521 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
22 16.25 0.248 13.504 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
23 15.45 0.266 13.486 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
24 14.76 0.283 13.468 0 0 0 0 0   [Snapshot] (3.2 GB)   [Groupcat] (38.4 KB)
25 14.03 0.304 13.447 0 0 0 1 1   [Snapshot] (3.2 GB)   [Groupcat] (54.2 KB)
26 13.34 0.327 13.425 0 0 0 2 2   [Snapshot] (3.2 GB)   [Groupcat] (54.2 KB)
27 12.67 0.351 13.401 0 0 0 9 9   [Snapshot] (3.2 GB)   [Groupcat] (72.3 KB)
28 12.04 0.376 13.375 0 0 0 18 18   [Snapshot] (3.2 GB)   [Groupcat] (90.3 KB)
29 11.50 0.401 13.350 0 0 0 55 56   [Snapshot] (3.2 GB)   [Groupcat] (162.8 KB)
30 10.92 0.431 13.321 0 0 0 141 141   [Snapshot] (3.2 GB)   [Groupcat] (202.0 KB)
31 10.37 0.463 13.289 0 0 0 265 266   [Snapshot] (3.2 GB)   [Groupcat] (246.2 KB)
32 10.00 0.486 13.265 0 0 0 440 444   [Snapshot] (3.2 GB)   [Groupcat] (317.5 KB)
33 9.84 0.497 13.255 0 0 0 520 524   [Snapshot] (3.2 GB)   [Groupcat] (345.3 KB)
34 9.39 0.529 13.222 0 0 0 882 890   [Snapshot] (3.2 GB)   [Groupcat] (470.0 KB)
35 9.00 0.560 13.191 0 0 0 1367 1385   [Snapshot] (3.2 GB)   [Groupcat] (648.3 KB)
36 8.91 0.568 13.183 0 0 0 1522 1543   [Snapshot] (3.2 GB)   [Groupcat] (713.3 KB)
37 8.45 0.610 13.141 0 0 0 2423 2461   [Snapshot] (3.2 GB)   [Groupcat] (1022.4 KB)
38 8.01 0.655 13.096 0 0 0 3736 3804   [Snapshot] (3.2 GB)   [Groupcat] (1.5 MB)
39 7.60 0.703 13.048 0 0 0 5484 5598   [Snapshot] (3.2 GB)   [Groupcat] (2.1 MB)
40 7.24 0.750 13.002 0 0 0 7562 7729   [Snapshot] (3.2 GB)   [Groupcat] (2.8 MB)
41 7.01 0.782 12.969 0 0 0 9269 9481   [Snapshot] (3.2 GB)   [Groupcat] (3.4 MB)
42 6.86 0.805 12.947 0 0 0 10480 10718   [Snapshot] (3.2 GB)   [Groupcat] (3.8 MB)
43 6.49 0.864 12.888 0 0 0 13753 14132   [Snapshot] (3.2 GB)   [Groupcat] (5.0 MB)
44 6.14 0.927 12.824 0 0 0 17868 18408   [Snapshot] (3.2 GB)   [Groupcat] (6.5 MB)
45 6.01 0.954 12.797 0 0 0 19509 20109   [Snapshot] (3.2 GB)   [Groupcat] (7.1 MB)
46 5.85 0.989 12.763 0 0 0 21872 22577   [Snapshot] (3.2 GB)   [Groupcat] (7.9 MB)
47 5.53 1.061 12.690 0 0 0 27030 27891   [Snapshot] (3.2 GB)   [Groupcat] (9.7 MB)
48 5.23 1.139 12.613 0 0 0 32416 33588   [Snapshot] (3.2 GB)   [Groupcat] (11.7 MB)
49 5.00 1.205 12.546 0 0 0 36964 38391   [Snapshot] (3.2 GB)   [Groupcat] (13.3 MB)
50 4.94 1.223 12.529 0 0 0 38218 39723   [Snapshot] (3.2 GB)   [Groupcat] (13.8 MB)
51 4.66 1.312 12.439 0 0 0 44139 46158   [Snapshot] (3.2 GB)   [Groupcat] (15.9 MB)
52 4.43 1.399 12.353 0 0 0 49672 52039   [Snapshot] (3.2 GB)   [Groupcat] (17.9 MB)
53 4.18 1.501 12.251 0 0 0 55893 58787   [Snapshot] (3.2 GB)   [Groupcat] (20.2 MB)
54 4.01 1.577 12.175 0 0 0 60008 63281   [Snapshot] (3.2 GB)   [Groupcat] (21.7 MB)
55 3.94 1.611 12.141 0 0 0 61947 65342   [Snapshot] (3.2 GB)   [Groupcat] (22.4 MB)
56 3.71 1.728 12.023 0 0 0 67572 71524   [Snapshot] (3.2 GB)   [Groupcat] (24.5 MB)
57 3.49 1.855 11.897 0 0 0 72993 77652   [Snapshot] (3.2 GB)   [Groupcat] (26.6 MB)
58 3.28 1.990 11.762 0 0 0 77930 83295   [Snapshot] (3.2 GB)   [Groupcat] (28.5 MB)
59 3.08 2.134 11.617 0 0 0 82552 88772   [Snapshot] (3.2 GB)   [Groupcat] (30.3 MB)
60 3.01 2.195 11.556 0 0 0 84231 90676   [Snapshot] (3.2 GB)   [Groupcat] (30.9 MB)
61 2.90 2.289 11.462 0 0 0 86543 93560   [Snapshot] (3.2 GB)   [Groupcat] (31.8 MB)
62 2.73 2.438 11.313 0 0 0 89757 97623   [Snapshot] (3.2 GB)   [Groupcat] (33.1 MB)
63 2.58 2.596 11.155 0 0 0 92608 101047   [Snapshot] (3.2 GB)   [Groupcat] (34.3 MB)
64 2.44 2.745 11.006 0 0 0 94851 104065   [Snapshot] (3.2 GB)   [Groupcat] (35.2 MB)
65 2.32 2.902 10.849 0 0 0 96878 106758   [Snapshot] (3.2 GB)   [Groupcat] (36.1 MB)
66 2.21 3.047 10.705 0 0 0 98271 108728   [Snapshot] (3.2 GB)   [Groupcat] (36.7 MB)
67 2.10 3.198 10.554 0 0 0 99620 110691   [Snapshot] (3.2 GB)   [Groupcat] (37.3 MB)
68 2.00 3.356 10.396 0 0 0 101066 112550   [Snapshot] (3.2 GB)   [Groupcat] (37.9 MB)
69 1.90 3.522 10.230 0 0 0 101975 113981   [Snapshot] (3.2 GB)   [Groupcat] (38.3 MB)
70 1.82 3.669 10.082 0 0 0 102768 115059   [Snapshot] (3.2 GB)   [Groupcat] (38.7 MB)
71 1.74 3.823 9.928 0 0 0 103087 116062   [Snapshot] (3.2 GB)   [Groupcat] (39.0 MB)
72 1.67 3.983 9.769 0 0 0 103791 116983   [Snapshot] (3.2 GB)   [Groupcat] (39.3 MB)
73 1.60 4.120 9.631 0 0 0 104177 117868   [Snapshot] (3.2 GB)   [Groupcat] (39.5 MB)
74 1.53 4.291 9.460 0 0 0 104411 118312   [Snapshot] (3.2 GB)   [Groupcat] (39.6 MB)
75 1.47 4.438 9.313 0 0 0 104795 118911   [Snapshot] (3.2 GB)   [Groupcat] (39.8 MB)
76 1.41 4.590 9.161 0 0 0 104739 119200   [Snapshot] (3.2 GB)   [Groupcat] (39.9 MB)
77 1.36 4.747 9.005 0 0 0 104912 119426   [Snapshot] (3.2 GB)   [Groupcat] (39.9 MB)
78 1.30 4.908 8.844 0 0 0 105011 119929   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
79 1.25 5.074 8.678 0 0 0 104857 120061   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
80 1.21 5.210 8.542 0 0 0 104681 120225   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
81 1.15 5.384 8.367 0 0 0 104666 120308   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
82 1.11 5.527 8.224 0 0 0 104470 120558   [Snapshot] (3.2 GB)   [Groupcat] (40.2 MB)
83 1.07 5.674 8.078 0 0 0 104372 120345   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
84 1.04 5.824 7.928 0 0 0 104301 120336   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
85 1.00 5.977 7.775 0 0 0 104231 120322   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
86 0.99 6.015 7.736 0 0 0 104167 120310   [Snapshot] (3.2 GB)   [Groupcat] (40.1 MB)
87 0.95 6.172 7.579 0 0 0 103970 120283   [Snapshot] (3.2 GB)   [Groupcat] (40.0 MB)
88 0.92 6.292 7.459 0 0 0 103802 120315   [Snapshot] (3.2 GB)   [Groupcat] (40.0 MB)
89 0.89 6.455 7.296 0 0 0 103587 120222   [Snapshot] (3.2 GB)   [Groupcat] (40.0 MB)
90 0.85 6.622 7.130 0 0 0 103595 120080   [Snapshot] (3.2 GB)   [Groupcat] (39.9 MB)
91 0.82 6.791 6.960 0 0 0 103545 119911   [Snapshot] (3.2 GB)   [Groupcat] (39.9 MB)
92 0.79 6.921 6.831 0 0 0 103338 119953   [Snapshot] (3.2 GB)   [Groupcat] (39.9 MB)
93 0.76 7.096 6.656 0 0 0 102921 119770   [Snapshot] (3.2 GB)   [Groupcat] (39.8 MB)
94 0.73 7.230 6.522 0 0 0 102567 119483   [Snapshot] (3.2 GB)   [Groupcat] (39.7 MB)
95 0.70 7.411 6.340 0 0 0 102243 119321   [Snapshot] (3.2 GB)   [Groupcat] (39.6 MB)
96 0.68 7.550 6.202 0 0 0 102250 119238   [Snapshot] (3.2 GB)   [Groupcat] (39.6 MB)
97 0.64 7.737 6.015 0 0 0 102023 119024   [Snapshot] (3.2 GB)   [Groupcat] (39.5 MB)
98 0.62 7.880 5.872 0 0 0 101648 118834   [Snapshot] (3.2 GB)   [Groupcat] (39.4 MB)
99 0.60 8.024 5.727 0 0 0 101518 118735   [Snapshot] (3.2 GB)   [Groupcat] (39.4 MB)
100 0.58 8.171 5.581 0 0 0 101292 118494   [Snapshot] (3.2 GB)   [Groupcat] (39.3 MB)
101 0.55 8.369 5.383 0 0 0 101207 118282   [Snapshot] (3.2 GB)   [Groupcat] (39.3 MB)
102 0.52 8.520 5.232 0 0 0 100686 118014   [Snapshot] (3.2 GB)   [Groupcat] (39.1 MB)
103 0.50 8.672 5.079 0 0 0 100505 117699   [Snapshot] (3.2 GB)   [Groupcat] (39.0 MB)
104 0.48 8.827 4.925 0 0 0 100409 117699   [Snapshot] (3.2 GB)   [Groupcat] (39.0 MB)
105 0.46 8.983 4.769 0 0 0 100177 117512   [Snapshot] (3.2 GB)   [Groupcat] (39.0 MB)
106 0.44 9.141 4.610 0 0 0 99809 117324   [Snapshot] (3.2 GB)   [Groupcat] (38.9 MB)
107 0.42 9.301 4.451 0 0 0 99605 117209   [Snapshot] (3.2 GB)   [Groupcat] (38.8 MB)
108 0.40 9.463 4.289 0 0 0 99304 116883   [Snapshot] (3.2 GB)   [Groupcat] (38.7 MB)
109 0.38 9.626 4.125 0 0 0 99139 116675   [Snapshot] (3.2 GB)   [Groupcat] (38.6 MB)
110 0.36 9.791 3.960 0 0 0 98984 116493   [Snapshot] (3.2 GB)   [Groupcat] (38.6 MB)
111 0.35 9.902 3.849 0 0 0 98803 116322   [Snapshot] (3.2 GB)   [Groupcat] (38.5 MB)
112 0.33 10.070 3.681 0 0 0 98573 116030   [Snapshot] (3.2 GB)   [Groupcat] (38.4 MB)
113 0.31 10.240 3.511 0 0 0 98472 115882   [Snapshot] (3.2 GB)   [Groupcat] (38.4 MB)
114 0.29 10.411 3.340 0 0 0 98091 115681   [Snapshot] (3.2 GB)   [Groupcat] (38.3 MB)
115 0.27 10.585 3.167 0 0 0 97992 115558   [Snapshot] (3.2 GB)   [Groupcat] (38.3 MB)
116 0.26 10.701 3.051 0 0 0 97803 115275   [Snapshot] (3.2 GB)   [Groupcat] (38.2 MB)
117 0.24 10.876 2.875 0 0 0 97557 115136   [Snapshot] (3.2 GB)   [Groupcat] (38.1 MB)
118 0.23 11.054 2.698 0 0 0 97063 114888   [Snapshot] (3.2 GB)   [Groupcat] (38.0 MB)
119 0.21 11.173 2.579 0 0 0 96949 114802   [Snapshot] (3.2 GB)   [Groupcat] (38.0 MB)
120 0.20 11.353 2.399 0 0 0 96838 114679   [Snapshot] (3.2 GB)   [Groupcat] (37.9 MB)
121 0.18 11.534 2.218 0 0 0 96768 114459   [Snapshot] (3.2 GB)   [Groupcat] (37.9 MB)
122 0.17 11.656 2.096 0 0 0 96545 114316   [Snapshot] (3.2 GB)   [Groupcat] (37.8 MB)
123 0.15 11.839 1.912 0 0 0 96151 113995   [Snapshot] (3.2 GB)   [Groupcat] (37.7 MB)
124 0.14 11.963 1.789 0 0 0 96026 113794   [Snapshot] (3.2 GB)   [Groupcat] (37.6 MB)
125 0.13 12.149 1.603 0 0 0 95775 113657   [Snapshot] (3.2 GB)   [Groupcat] (37.6 MB)
126 0.11 12.336 1.415 0 0 0 95596 113603   [Snapshot] (3.2 GB)   [Groupcat] (37.5 MB)
127 0.10 12.462 1.289 0 0 0 95640 113611   [Snapshot] (3.2 GB)   [Groupcat] (37.5 MB)
128 0.08 12.652 1.100 0 0 0 95466 113266   [Snapshot] (3.2 GB)   [Groupcat] (37.4 MB)
129 0.07 12.779 0.972 0 0 0 95460 113186   [Snapshot] (3.2 GB)   [Groupcat] (37.4 MB)
130 0.06 12.971 0.780 0 0 0 94970 112889   [Snapshot] (3.2 GB)   [Groupcat] (37.3 MB)
131 0.05 13.100 0.652 0 0 0 94807 112651   [Snapshot] (3.2 GB)   [Groupcat] (37.2 MB)
132 0.03 13.294 0.458 0 0 0 94589 112408   [Snapshot] (3.2 GB)   [Groupcat] (37.1 MB)
133 0.02 13.424 0.327 0 0 0 94327 112320   [Snapshot] (3.2 GB)   [Groupcat] (37.1 MB)
134 0.01 13.620 0.131 0 0 0 94056 112245   [Snapshot] (3.2 GB)   [Groupcat] (37.0 MB)
135 0.00 13.752 0.000 0 0 0 94028 111992   [Snapshot] (3.2 GB)   [Groupcat] (37.0 MB)

Merger Trees:

Illustris-3-Dark has the SubLink merger trees available. In addition to progenitor/descendant connectivity, it includes essentially all properties from the Subfind group catalogs.

Illustris-3-Dark does not currently have the LHaloTree merger trees available.

Illustris-3-Dark does not currently have the Consistent Trees (Rockstar) merger trees available.

Note: Extracting sub-trees for individual galaxies or halos

The merger trees are generally quite large. If you are interested in making a galaxy/halo selection based on a complex criterion related to assembly history, merger history, etc, then you will need to download the full tree files. If, however, you are only looking to study the merger history of a few galaxies/halos, you should instead consider extracting sub-trees on the fly using the Web API.

Supplementary Data Catalogs:

Nothing extra currently available for this run.