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Simulation Details:

Parameter DescriptionValue
simulation nameTNG50-2-Dark
alternative simulation nameL35n1080TNG_DM
short description of runIntermediate resolution (level 2) IllustrisTNG50 run - dark matter only analog.
side length of simulation box [ckpc/h]35000.0
average gas cell mass [10^10 msun/h] (0=no gas)0.0
dark matter particle mass [10^10 msun/h]0.000291804487728666
number of dark matter particles1259712000
number of gas tracer particles0
starting redshift (e.g. z=99)127.0
ending redshift (e.g. z=0)0.0
short description of cosmological parameters (e.g. 'WMAP-7')Planck2015
total matter density (e.g. 0.27)0.3089
dark energy density (e.g. 0.73)0.6911
baryonic matter density (e.g. 0.04)0.0486
hubble constant 'little h' in units of [100 km/s/Mpc]0.6774
short description of implemented physics modelsDM-only
has radiative gas cooling (false for non-radiative runs)False
has star formation (false for non-radiative runs)False
has galactic-scale winds from star formation feedback (fiducial parameters)False
has supermassive blackhole formation, accretion, and feedback (fiducial parameters)False
is a uniform mass, full periodic, cosmological volumeTrue
is a non-periodic subbox embedded within a larger volume (high time resolution)False
[friends of friends] group catalogs existTrue
[subfind] group catalogs existTrue
[rockstar] group catalogs existFalse
[lhalotree] merger tree existsTrue
[sublink] merger tree existsTrue
[consistent trees] merger tree existsFalse

Snapshot List:

TNG50-2-Dark has [100] snapshots available, with 4.5 TB total data volume.

Over all snapshots, have 90,581,812 FoF groups, 103,785,045 Subfind groups, and 125,971,200,000 particles.

Snapshot
[#]
Redshift Age
[Gyr]
Lookback
[Gyr]
Gas Cells
[#]
Stars
[#]
BHs
[#]
FoF
Groups [#]
Subfind
Groups [#]
Download
Snapshot
Download
FoF & Subfind
Download
Offsets
0 20.05 0.179 13.624 0 0 0 200 207   [Snapshot] (37.5 GB)   [Groupcat] (1.6 MB)
1 14.99 0.271 13.532 0 0 0 14028 14556   [Snapshot] (37.5 GB)   [Groupcat] (7.6 MB)
2 11.98 0.370 13.433 0 0 0 93717 98369   [Snapshot] (75.1 GB)   [Groupcat] (37.1 MB)
3 10.98 0.418 13.385 0 0 0 156420 164869   [Snapshot] (75.1 GB)   [Groupcat] (60.5 MB)
4 10.00 0.475 13.328 0 0 0 245440 259335   [Snapshot] (75.1 GB)   [Groupcat] (93.7 MB)
5 9.39 0.517 13.286 0 0 0 316298 334611   [Snapshot] (37.5 GB)   [Groupcat] (120.1 MB)
6 9.00 0.547 13.256 0 0 0 367029 388646   [Snapshot] (75.1 GB)   [Groupcat] (139.1 MB)
7 8.45 0.596 13.207 0 0 0 446397 474264   [Snapshot] (37.5 GB)   [Groupcat] (169.0 MB)
8 8.01 0.640 13.163 0 0 0 515354 548910   [Snapshot] (75.1 GB)   [Groupcat] (195.1 MB)
9 7.60 0.687 13.116 0 0 0 583767 623003   [Snapshot] (37.5 GB)   [Groupcat] (220.9 MB)
10 7.24 0.732 13.071 0 0 0 644930 690092   [Snapshot] (37.5 GB)   [Groupcat] (244.2 MB)
11 7.01 0.764 13.039 0 0 0 684777 734443   [Snapshot] (75.1 GB)   [Groupcat] (259.6 MB)
12 6.49 0.844 12.959 0 0 0 771822 832499   [Snapshot] (37.5 GB)   [Groupcat] (293.3 MB)
13 6.01 0.932 12.871 0 0 0 851640 923544   [Snapshot] (75.1 GB)   [Groupcat] (324.6 MB)
14 5.85 0.965 12.838 0 0 0 877713 954292   [Snapshot] (37.5 GB)   [Groupcat] (335.0 MB)
15 5.53 1.036 12.767 0 0 0 925711 1011565   [Snapshot] (37.5 GB)   [Groupcat] (354.4 MB)
16 5.23 1.112 12.691 0 0 0 968393 1063452   [Snapshot] (37.5 GB)   [Groupcat] (371.8 MB)
17 5.00 1.177 12.626 0 0 0 998381 1100478   [Snapshot] (75.1 GB)   [Groupcat] (384.2 MB)
18 4.66 1.282 12.521 0 0 0 1037632 1150585   [Snapshot] (37.5 GB)   [Groupcat] (400.8 MB)
19 4.43 1.366 12.437 0 0 0 1062106 1183360   [Snapshot] (37.5 GB)   [Groupcat] (411.5 MB)
20 4.18 1.466 12.337 0 0 0 1084881 1214581   [Snapshot] (37.5 GB)   [Groupcat] (421.6 MB)
21 4.01 1.540 12.263 0 0 0 1098094 1233524   [Snapshot] (75.1 GB)   [Groupcat] (427.7 MB)
22 3.71 1.689 12.115 0 0 0 1117548 1262399   [Snapshot] (37.5 GB)   [Groupcat] (436.9 MB)
23 3.49 1.812 11.991 0 0 0 1128006 1278968   [Snapshot] (37.5 GB)   [Groupcat] (442.1 MB)
24 3.28 1.944 11.859 0 0 0 1137582 1293233   [Snapshot] (37.5 GB)   [Groupcat] (446.6 MB)
25 3.01 2.145 11.658 0 0 0 1142042 1304150   [Snapshot] (75.1 GB)   [Groupcat] (449.7 MB)
26 2.90 2.238 11.565 0 0 0 1142970 1307485   [Snapshot] (37.5 GB)   [Groupcat] (450.6 MB)
27 2.73 2.384 11.419 0 0 0 1142010 1309946   [Snapshot] (37.5 GB)   [Groupcat] (451.0 MB)
28 2.58 2.539 11.264 0 0 0 1140103 1310640   [Snapshot] (37.5 GB)   [Groupcat] (451.0 MB)
29 2.44 2.685 11.118 0 0 0 1136589 1308756   [Snapshot] (37.5 GB)   [Groupcat] (450.1 MB)
30 2.32 2.839 10.964 0 0 0 1133763 1304891   [Snapshot] (37.5 GB)   [Groupcat] (448.8 MB)
31 2.21 2.981 10.823 0 0 0 1129079 1301908   [Snapshot] (37.5 GB)   [Groupcat] (447.5 MB)
32 2.10 3.129 10.674 0 0 0 1124495 1296624   [Snapshot] (37.5 GB)   [Groupcat] (445.7 MB)
33 2.00 3.285 10.519 0 0 0 1118744 1291091   [Snapshot] (75.1 GB)   [Groupcat] (443.7 MB)
34 1.90 3.447 10.356 0 0 0 1112709 1285067   [Snapshot] (37.5 GB)   [Groupcat] (441.6 MB)
35 1.82 3.593 10.210 0 0 0 1106629 1277917   [Snapshot] (37.5 GB)   [Groupcat] (439.1 MB)
36 1.74 3.744 10.059 0 0 0 1099722 1271299   [Snapshot] (37.5 GB)   [Groupcat] (436.7 MB)
37 1.67 3.902 9.901 0 0 0 1093625 1264986   [Snapshot] (37.5 GB)   [Groupcat] (434.5 MB)
38 1.60 4.038 9.766 0 0 0 1089216 1259022   [Snapshot] (37.5 GB)   [Groupcat] (432.6 MB)
39 1.53 4.206 9.597 0 0 0 1083882 1251497   [Snapshot] (37.5 GB)   [Groupcat] (430.1 MB)
40 1.50 4.293 9.510 0 0 0 1079988 1247142   [Snapshot] (75.1 GB)   [Groupcat] (428.6 MB)
41 1.41 4.502 9.301 0 0 0 1072311 1237789   [Snapshot] (37.5 GB)   [Groupcat] (425.5 MB)
42 1.36 4.657 9.147 0 0 0 1065786 1230634   [Snapshot] (37.5 GB)   [Groupcat] (423.0 MB)
43 1.30 4.816 8.987 0 0 0 1059795 1223601   [Snapshot] (37.5 GB)   [Groupcat] (420.6 MB)
44 1.25 4.980 8.823 0 0 0 1052984 1215863   [Snapshot] (37.5 GB)   [Groupcat] (418.0 MB)
45 1.21 5.115 8.688 0 0 0 1047673 1210721   [Snapshot] (37.5 GB)   [Groupcat] (416.1 MB)
46 1.15 5.289 8.514 0 0 0 1041281 1202174   [Snapshot] (37.5 GB)   [Groupcat] (413.3 MB)
47 1.11 5.431 8.372 0 0 0 1036483 1196311   [Snapshot] (37.5 GB)   [Groupcat] (411.3 MB)
48 1.07 5.577 8.226 0 0 0 1031544 1190274   [Snapshot] (37.5 GB)   [Groupcat] (409.3 MB)
49 1.04 5.726 8.077 0 0 0 1026678 1184237   [Snapshot] (37.5 GB)   [Groupcat] (407.3 MB)
50 1.00 5.878 7.925 0 0 0 1020426 1177656   [Snapshot] (75.1 GB)   [Groupcat] (404.9 MB)
51 0.95 6.073 7.730 0 0 0 1014684 1170239   [Snapshot] (37.5 GB)   [Groupcat] (402.5 MB)
52 0.92 6.193 7.610 0 0 0 1010464 1165378   [Snapshot] (37.5 GB)   [Groupcat] (400.8 MB)
53 0.89 6.356 7.447 0 0 0 1005146 1159353   [Snapshot] (37.5 GB)   [Groupcat] (398.8 MB)
54 0.85 6.522 7.281 0 0 0 999624 1153284   [Snapshot] (37.5 GB)   [Groupcat] (396.7 MB)
55 0.82 6.692 7.111 0 0 0 994869 1147500   [Snapshot] (37.5 GB)   [Groupcat] (394.7 MB)
56 0.79 6.822 6.981 0 0 0 990630 1143191   [Snapshot] (37.5 GB)   [Groupcat] (393.2 MB)
57 0.76 6.998 6.805 0 0 0 985007 1136744   [Snapshot] (37.5 GB)   [Groupcat] (391.0 MB)
58 0.73 7.132 6.671 0 0 0 981930 1132307   [Snapshot] (37.5 GB)   [Groupcat] (389.5 MB)
59 0.70 7.314 6.489 0 0 0 976986 1126048   [Snapshot] (75.1 GB)   [Groupcat] (387.5 MB)
60 0.68 7.453 6.350 0 0 0 972959 1121603   [Snapshot] (37.5 GB)   [Groupcat] (385.9 MB)
61 0.64 7.642 6.161 0 0 0 968443 1115437   [Snapshot] (37.5 GB)   [Groupcat] (383.9 MB)
62 0.62 7.786 6.017 0 0 0 964039 1111307   [Snapshot] (37.5 GB)   [Groupcat] (382.4 MB)
63 0.60 7.932 5.872 0 0 0 960738 1107603   [Snapshot] (37.5 GB)   [Groupcat] (381.1 MB)
64 0.58 8.079 5.724 0 0 0 958048 1103388   [Snapshot] (37.5 GB)   [Groupcat] (379.8 MB)
65 0.55 8.280 5.523 0 0 0 953965 1098163   [Snapshot] (37.5 GB)   [Groupcat] (378.0 MB)
66 0.52 8.432 5.371 0 0 0 950428 1094296   [Snapshot] (37.5 GB)   [Groupcat] (376.7 MB)
67 0.50 8.587 5.216 0 0 0 947314 1090185   [Snapshot] (75.1 GB)   [Groupcat] (375.4 MB)
68 0.48 8.743 5.060 0 0 0 943838 1086418   [Snapshot] (37.5 GB)   [Groupcat] (374.0 MB)
69 0.46 8.902 4.901 0 0 0 939694 1082195   [Snapshot] (37.5 GB)   [Groupcat] (372.5 MB)
70 0.44 9.062 4.741 0 0 0 936036 1078374   [Snapshot] (37.5 GB)   [Groupcat] (371.2 MB)
71 0.42 9.225 4.578 0 0 0 932256 1075148   [Snapshot] (37.5 GB)   [Groupcat] (369.9 MB)
72 0.40 9.389 4.414 0 0 0 929974 1071613   [Snapshot] (75.1 GB)   [Groupcat] (368.8 MB)
73 0.38 9.556 4.247 0 0 0 926652 1067670   [Snapshot] (37.5 GB)   [Groupcat] (367.5 MB)
74 0.36 9.724 4.079 0 0 0 922716 1064277   [Snapshot] (37.5 GB)   [Groupcat] (366.2 MB)
75 0.35 9.837 3.966 0 0 0 920119 1061505   [Snapshot] (37.5 GB)   [Groupcat] (365.2 MB)
76 0.33 10.009 3.794 0 0 0 916396 1057760   [Snapshot] (37.5 GB)   [Groupcat] (363.9 MB)
77 0.31 10.182 3.621 0 0 0 912991 1053954   [Snapshot] (37.5 GB)   [Groupcat] (362.6 MB)
78 0.30 10.299 3.504 0 0 0 910829 1051713   [Snapshot] (75.1 GB)   [Groupcat] (361.8 MB)
79 0.27 10.535 3.269 0 0 0 905517 1046653   [Snapshot] (37.5 GB)   [Groupcat] (359.9 MB)
80 0.26 10.654 3.149 0 0 0 902734 1043859   [Snapshot] (37.5 GB)   [Groupcat] (358.9 MB)
81 0.24 10.834 2.969 0 0 0 898804 1040262   [Snapshot] (37.5 GB)   [Groupcat] (357.6 MB)
82 0.23 11.016 2.787 0 0 0 893317 1036073   [Snapshot] (37.5 GB)   [Groupcat] (355.9 MB)
83 0.21 11.138 2.665 0 0 0 890147 1033740   [Snapshot] (37.5 GB)   [Groupcat] (355.0 MB)
84 0.20 11.323 2.480 0 0 0 884746 1030382   [Snapshot] (75.1 GB)   [Groupcat] (353.5 MB)
85 0.18 11.509 2.294 0 0 0 879903 1026805   [Snapshot] (37.5 GB)   [Groupcat] (352.1 MB)
86 0.17 11.635 2.169 0 0 0 876624 1024728   [Snapshot] (37.5 GB)   [Groupcat] (351.2 MB)
87 0.15 11.824 1.979 0 0 0 872783 1021408   [Snapshot] (37.5 GB)   [Groupcat] (349.9 MB)
88 0.14 11.951 1.852 0 0 0 870108 1019284   [Snapshot] (37.5 GB)   [Groupcat] (349.1 MB)
89 0.13 12.143 1.660 0 0 0 867646 1016228   [Snapshot] (37.5 GB)   [Groupcat] (348.1 MB)
90 0.11 12.337 1.466 0 0 0 865461 1013521   [Snapshot] (37.5 GB)   [Groupcat] (347.1 MB)
91 0.10 12.467 1.336 0 0 0 863679 1011256   [Snapshot] (75.1 GB)   [Groupcat] (346.4 MB)
92 0.08 12.663 1.140 0 0 0 860432 1008127   [Snapshot] (37.5 GB)   [Groupcat] (345.3 MB)
93 0.07 12.795 1.008 0 0 0 858984 1006183   [Snapshot] (37.5 GB)   [Groupcat] (344.6 MB)
94 0.06 12.993 0.810 0 0 0 855878 1002671   [Snapshot] (37.5 GB)   [Groupcat] (343.4 MB)
95 0.05 13.127 0.676 0 0 0 854551 1001230   [Snapshot] (37.5 GB)   [Groupcat] (342.9 MB)
96 0.03 13.328 0.475 0 0 0 851412 998178   [Snapshot] (37.5 GB)   [Groupcat] (341.8 MB)
97 0.02 13.463 0.340 0 0 0 850070 996195   [Snapshot] (37.5 GB)   [Groupcat] (341.2 MB)
98 0.01 13.667 0.136 0 0 0 847798 994215   [Snapshot] (37.5 GB)   [Groupcat] (340.4 MB)
99 0.00 13.803 0.000 0 0 0 846050 991928   [Snapshot] (75.1 GB)   [Groupcat] (339.7 MB)

simulation.hdf5 file:

TNG50-2-Dark has the virtual 'simulation.hdf5' container file available.

Merger Trees:

TNG50-2-Dark has the SubLink merger trees available: they contain the progenitor/descendant connectivity, and essentially all Subhalo properties.

TNG50-2-Dark has the LHaloTree merger trees available: they contain the progenitor/descendant connectivity, and the most important Subhalo properties.

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.