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Simulation Details:

Parameter DescriptionValue
simulation nameTNG50-3
alternative simulation nameL35n540TNG
short description of runLow resolution (level 3) IllustrisTNG50 run including the full TNG physics model.
side length of simulation box [ckpc/h]35000.0
average gas cell mass [10^10 msun/h] (0=no gas)0.00036728256
dark matter particle mass [10^10 msun/h]0.00196715333520937
number of dark matter particles157464000
number of gas tracer particles157464000
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 modelsFiducial TNG Model
has radiative gas cooling (false for non-radiative runs)True
has star formation (false for non-radiative runs)True
has galactic-scale winds from star formation feedback (fiducial parameters)True
has supermassive blackhole formation, accretion, and feedback (fiducial parameters)True
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:

TNG50-3 has [100] snapshots available, with 2.1 TB total data volume.

Over all snapshots, have 16,644,008 FoF groups, 13,976,343 Subfind groups, and 31,169,269,143 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 157463999 0 0 1 1   [Snapshot] (15.3 GB)   [Groupcat] (314.4 KB)
1 14.99 0.271 13.532 157463704 121 0 328 327   [Snapshot] (15.3 GB)   [Groupcat] (696.9 KB)
2 11.98 0.370 13.433 157454196 2577 0 4878 4921   [Snapshot] (44.6 GB)   [Groupcat] (4.8 MB)
3 10.98 0.418 13.385 157435311 6338 1 10317 10337   [Snapshot] (44.6 GB)   [Groupcat] (9.5 MB)
4 10.00 0.475 13.328 157389397 13135 3 19829 19774   [Snapshot] (44.6 GB)   [Groupcat] (17.7 MB)
5 9.39 0.517 13.286 157333457 20002 4 28829 28661   [Snapshot] (15.2 GB)   [Groupcat] (25.4 MB)
6 9.00 0.547 13.256 157281394 25497 10 35867 35531   [Snapshot] (44.5 GB)   [Groupcat] (31.4 MB)
7 8.45 0.596 13.207 157177283 35105 17 48297 47573   [Snapshot] (15.2 GB)   [Groupcat] (41.9 MB)
8 8.01 0.640 13.163 157056507 45168 23 60142 59065   [Snapshot] (44.5 GB)   [Groupcat] (52.0 MB)
9 7.60 0.687 13.116 156900092 57621 38 73376 71901   [Snapshot] (15.2 GB)   [Groupcat] (63.2 MB)
10 7.24 0.732 13.071 156728050 72048 51 85554 83684   [Snapshot] (15.2 GB)   [Groupcat] (73.5 MB)
11 7.01 0.764 13.039 156592654 83430 73 94561 92018   [Snapshot] (44.4 GB)   [Groupcat] (80.8 MB)
12 6.49 0.844 12.959 156216098 114794 137 114802 111252   [Snapshot] (15.2 GB)   [Groupcat] (97.7 MB)
13 6.01 0.932 12.871 155761639 155363 214 134632 130234   [Snapshot] (44.3 GB)   [Groupcat] (114.4 MB)
14 5.85 0.965 12.838 155607732 167881 269 142030 129479   [Snapshot] (15.2 GB)   [Groupcat] (115.5 MB)
15 5.53 1.036 12.767 155351678 204968 338 154724 140826   [Snapshot] (15.2 GB)   [Groupcat] (125.7 MB)
16 5.23 1.112 12.691 155098524 247730 486 165981 151232   [Snapshot] (15.1 GB)   [Groupcat] (134.9 MB)
17 5.00 1.177 12.626 154880804 294894 561 174213 159583   [Snapshot] (44.1 GB)   [Groupcat] (142.1 MB)
18 4.66 1.282 12.521 154545005 379691 725 184849 167447   [Snapshot] (15.1 GB)   [Groupcat] (149.5 MB)
19 4.43 1.366 12.437 154286476 451517 822 191199 171556   [Snapshot] (15.1 GB)   [Groupcat] (153.6 MB)
20 4.18 1.466 12.337 153984216 541155 1039 196967 175132   [Snapshot] (15.1 GB)   [Groupcat] (157.2 MB)
21 4.01 1.540 12.263 153764816 611892 1146 200214 176946   [Snapshot] (43.9 GB)   [Groupcat] (159.0 MB)
22 3.71 1.689 12.115 153362328 759220 1376 204259 179365   [Snapshot] (15.1 GB)   [Groupcat] (161.5 MB)
23 3.49 1.812 11.991 153046073 893374 1656 205146 180279   [Snapshot] (15.1 GB)   [Groupcat] (162.3 MB)
24 3.28 1.944 11.859 152733861 1044991 1767 205778 180328   [Snapshot] (15.1 GB)   [Groupcat] (162.5 MB)
25 3.01 2.145 11.658 152305397 1283768 2123 204635 180235   [Snapshot] (43.8 GB)   [Groupcat] (162.1 MB)
26 2.90 2.238 11.565 152138635 1401113 2240 204034 179796   [Snapshot] (15.0 GB)   [Groupcat] (161.7 MB)
27 2.73 2.384 11.419 151871919 1586106 2328 203059 179133   [Snapshot] (15.0 GB)   [Groupcat] (161.1 MB)
28 2.58 2.539 11.264 151595269 1796003 2576 201286 178338   [Snapshot] (15.0 GB)   [Groupcat] (160.2 MB)
29 2.44 2.685 11.118 151352635 1997290 2664 200168 177668   [Snapshot] (15.0 GB)   [Groupcat] (159.5 MB)
30 2.32 2.839 10.964 151140690 2197716 2740 199384 176612   [Snapshot] (15.0 GB)   [Groupcat] (158.6 MB)
31 2.21 2.981 10.823 150949847 2381053 2830 198380 175961   [Snapshot] (15.0 GB)   [Groupcat] (158.0 MB)
32 2.10 3.129 10.674 150756519 2577619 2890 196874 174849   [Snapshot] (15.0 GB)   [Groupcat] (157.0 MB)
33 2.00 3.285 10.519 150565846 2780892 2954 195713 173866   [Snapshot] (43.7 GB)   [Groupcat] (156.1 MB)
34 1.90 3.447 10.356 150380026 2989126 3124 194809 172596   [Snapshot] (15.0 GB)   [Groupcat] (155.0 MB)
35 1.82 3.593 10.210 150227080 3169720 3209 193454 171591   [Snapshot] (15.0 GB)   [Groupcat] (154.1 MB)
36 1.74 3.744 10.059 150076167 3340915 3283 193042 170710   [Snapshot] (15.0 GB)   [Groupcat] (153.4 MB)
37 1.67 3.902 9.901 149926093 3512918 3213 192817 169714   [Snapshot] (15.0 GB)   [Groupcat] (152.7 MB)
38 1.60 4.038 9.766 149806495 3653133 3294 192318 168842   [Snapshot] (15.0 GB)   [Groupcat] (152.1 MB)
39 1.53 4.206 9.597 149652492 3824746 3360 192007 167710   [Snapshot] (15.0 GB)   [Groupcat] (151.3 MB)
40 1.50 4.293 9.510 149574729 3914150 3443 191643 167218   [Snapshot] (43.7 GB)   [Groupcat] (150.9 MB)
41 1.41 4.502 9.301 149395541 4127071 3480 190716 165962   [Snapshot] (15.0 GB)   [Groupcat] (149.9 MB)
42 1.36 4.657 9.147 149269171 4278589 3528 190008 164994   [Snapshot] (15.0 GB)   [Groupcat] (149.1 MB)
43 1.30 4.816 8.987 149146006 4428921 3472 190201 163971   [Snapshot] (15.0 GB)   [Groupcat] (148.5 MB)
44 1.25 4.980 8.823 149011696 4580060 3510 190069 162962   [Snapshot] (15.0 GB)   [Groupcat] (147.8 MB)
45 1.21 5.115 8.688 148903827 4701028 3576 189984 162354   [Snapshot] (15.0 GB)   [Groupcat] (147.4 MB)
46 1.15 5.289 8.514 148776405 4848539 3616 189905 161362   [Snapshot] (15.0 GB)   [Groupcat] (146.7 MB)
47 1.11 5.431 8.372 148680516 4962516 3565 189567 160668   [Snapshot] (15.0 GB)   [Groupcat] (146.2 MB)
48 1.07 5.577 8.226 148578863 5080086 3632 189187 159658   [Snapshot] (15.0 GB)   [Groupcat] (145.5 MB)
49 1.04 5.726 8.077 148473872 5202674 3695 188542 159032   [Snapshot] (15.0 GB)   [Groupcat] (144.9 MB)
50 1.00 5.878 7.925 148363506 5326434 3638 187925 158253   [Snapshot] (43.7 GB)   [Groupcat] (144.3 MB)
51 0.95 6.073 7.730 148234107 5476985 3686 187576 157144   [Snapshot] (15.0 GB)   [Groupcat] (143.5 MB)
52 0.92 6.193 7.610 148151036 5565743 3746 187369 156523   [Snapshot] (15.0 GB)   [Groupcat] (143.1 MB)
53 0.89 6.356 7.447 148047308 5679436 3701 186267 155766   [Snapshot] (15.0 GB)   [Groupcat] (142.3 MB)
54 0.85 6.522 7.281 147943109 5792675 3742 186242 155033   [Snapshot] (15.0 GB)   [Groupcat] (141.9 MB)
55 0.82 6.692 7.111 147837350 5905088 3692 185986 154210   [Snapshot] (15.0 GB)   [Groupcat] (141.3 MB)
56 0.79 6.822 6.981 147755107 5989230 3736 185512 153803   [Snapshot] (15.0 GB)   [Groupcat] (140.9 MB)
57 0.76 6.998 6.805 147650051 6099901 3776 185154 153141   [Snapshot] (15.0 GB)   [Groupcat] (140.4 MB)
58 0.73 7.132 6.671 147575664 6180988 3736 185058 152291   [Snapshot] (15.0 GB)   [Groupcat] (139.8 MB)
59 0.70 7.314 6.489 147469116 6297029 3778 184783 151698   [Snapshot] (43.7 GB)   [Groupcat] (139.4 MB)
60 0.68 7.453 6.350 147391796 6379029 3744 184434 151142   [Snapshot] (15.0 GB)   [Groupcat] (139.0 MB)
61 0.64 7.642 6.161 147284317 6486293 3770 184363 150372   [Snapshot] (15.0 GB)   [Groupcat] (138.4 MB)
62 0.62 7.786 6.017 147210609 6563910 3740 183588 149965   [Snapshot] (15.0 GB)   [Groupcat] (138.0 MB)
63 0.60 7.932 5.872 147134607 6641239 3787 183272 149530   [Snapshot] (15.0 GB)   [Groupcat] (137.7 MB)
64 0.58 8.079 5.724 147055892 6720058 3739 183365 148825   [Snapshot] (15.0 GB)   [Groupcat] (137.2 MB)
65 0.55 8.280 5.523 146949244 6821129 3773 183265 148138   [Snapshot] (15.0 GB)   [Groupcat] (136.8 MB)
66 0.52 8.432 5.371 146877858 6896076 3741 182384 147481   [Snapshot] (15.0 GB)   [Groupcat] (136.2 MB)
67 0.50 8.587 5.216 146805211 6971290 3798 183172 147062   [Snapshot] (43.7 GB)   [Groupcat] (136.1 MB)
68 0.48 8.743 5.060 146728363 7044427 3754 182616 146377   [Snapshot] (15.0 GB)   [Groupcat] (135.5 MB)
69 0.46 8.902 4.901 146660594 7112652 3799 182743 146095   [Snapshot] (15.0 GB)   [Groupcat] (135.3 MB)
70 0.44 9.062 4.741 146588840 7178761 3763 182260 145646   [Snapshot] (15.0 GB)   [Groupcat] (134.9 MB)
71 0.42 9.225 4.578 146518271 7244578 3805 182144 145306   [Snapshot] (15.0 GB)   [Groupcat] (134.7 MB)
72 0.40 9.389 4.414 146444409 7311718 3759 182081 144800   [Snapshot] (43.7 GB)   [Groupcat] (134.4 MB)
73 0.38 9.556 4.247 146371982 7377956 3789 181697 144256   [Snapshot] (15.0 GB)   [Groupcat] (133.9 MB)
74 0.36 9.724 4.079 146302346 7441876 3759 180844 143694   [Snapshot] (15.0 GB)   [Groupcat] (133.4 MB)
75 0.35 9.837 3.966 146255763 7484364 3787 180535 143352   [Snapshot] (15.0 GB)   [Groupcat] (133.1 MB)
76 0.33 10.009 3.794 146187307 7545194 3761 180278 143015   [Snapshot] (15.0 GB)   [Groupcat] (132.8 MB)
77 0.31 10.182 3.621 146117036 7606052 3792 179464 142436   [Snapshot] (15.0 GB)   [Groupcat] (132.3 MB)
78 0.30 10.299 3.504 146069874 7644632 3766 179425 142099   [Snapshot] (43.7 GB)   [Groupcat] (132.0 MB)
79 0.27 10.535 3.269 145976060 7722101 3724 179664 141628   [Snapshot] (15.0 GB)   [Groupcat] (131.8 MB)
80 0.26 10.654 3.149 145930717 7761567 3764 179684 141460   [Snapshot] (15.0 GB)   [Groupcat] (131.7 MB)
81 0.24 10.834 2.969 145860201 7819660 3732 179823 140823   [Snapshot] (15.0 GB)   [Groupcat] (131.3 MB)
82 0.23 11.016 2.787 145792111 7874174 3762 179109 140361   [Snapshot] (15.0 GB)   [Groupcat] (130.9 MB)
83 0.21 11.138 2.665 145748271 7908563 3732 178223 139940   [Snapshot] (15.0 GB)   [Groupcat] (130.4 MB)
84 0.20 11.323 2.480 145682409 7959198 3782 177541 139445   [Snapshot] (43.7 GB)   [Groupcat] (129.9 MB)
85 0.18 11.509 2.294 145623274 8008433 3742 177885 138870   [Snapshot] (15.0 GB)   [Groupcat] (129.6 MB)
86 0.17 11.635 2.169 145584473 8040799 3726 176630 138635   [Snapshot] (15.0 GB)   [Groupcat] (129.2 MB)
87 0.15 11.824 1.979 145518680 8090633 3755 176901 138174   [Snapshot] (15.0 GB)   [Groupcat] (129.0 MB)
88 0.14 11.951 1.852 145477325 8124095 3729 176968 138139   [Snapshot] (15.0 GB)   [Groupcat] (128.9 MB)
89 0.13 12.143 1.660 145417310 8177152 3757 176638 137859   [Snapshot] (15.0 GB)   [Groupcat] (128.7 MB)
90 0.11 12.337 1.466 145361982 8224591 3732 177098 137355   [Snapshot] (15.0 GB)   [Groupcat] (128.5 MB)
91 0.10 12.467 1.336 145325581 8254989 3716 176748 137083   [Snapshot] (43.7 GB)   [Groupcat] (128.2 MB)
92 0.08 12.663 1.140 145269767 8299512 3733 176756 136748   [Snapshot] (15.0 GB)   [Groupcat] (128.0 MB)
93 0.07 12.795 1.008 145232207 8328772 3711 176735 136500   [Snapshot] (15.0 GB)   [Groupcat] (127.8 MB)
94 0.06 12.993 0.810 145175062 8372090 3734 176315 136010   [Snapshot] (15.0 GB)   [Groupcat] (127.4 MB)
95 0.05 13.127 0.676 145140419 8399751 3710 176191 135872   [Snapshot] (15.0 GB)   [Groupcat] (127.3 MB)
96 0.03 13.328 0.475 145083880 8440596 3731 176369 135449   [Snapshot] (15.0 GB)   [Groupcat] (127.1 MB)
97 0.02 13.463 0.340 145046747 8467272 3712 175576 135410   [Snapshot] (15.0 GB)   [Groupcat] (126.9 MB)
98 0.01 13.667 0.136 144994922 8506167 3684 175317 135096   [Snapshot] (15.0 GB)   [Groupcat] (126.6 MB)
99 0.00 13.803 0.000 144958247 8532335 3712 175460 134779   [Snapshot] (43.6 GB)   [Groupcat] (126.5 MB)

Initial Conditions:

TNG50-3 has its initial conditions available.

simulation.hdf5 file:

TNG50-3 has the virtual 'simulation.hdf5' container file available.

Merger Trees:

TNG50-3 has the SubLink merger trees available: they contain the progenitor/descendant connectivity, and essentially all Subhalo properties.

TNG50-3 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:

TNG50-3 has the Stellar Circularities, Angular Momenta, and Axis Ratios catalog available.

TNG50-3 has the Subhalo Matching To Dark catalog available.

TNG50-3 has the Blackhole Mergers catalog available.

TNG50-3 has the Blackhole Details catalog available.

TNG50-3 has the Stellar Assembly catalog available.

TNG50-3 has the Subbox Subhalo List catalogs available.