All the results and data from the first two IllustrisTNG simulation volumes -- TNG100 and TNG300 -- are publicly available here, as described in Nelson+ (2019a). Getting started tutorials, complete reference documentation, and a number of online tools for exploration and analysis are available.

The underlying data formats (and helper scripts) for TNG data are essentially identical to those we have developed for the original Illustris simulation. All TNG data can be accessed with the same methods (i.e. direct-download and/or web-based API). Your existing user account gives access to both Illustris and TNG.

Stay tuned for future simulation data releases! If you are particularly interested in the high-resolution TNG50 volume, please get in touch with us directly.

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### Getting Started

There are three fundamental ways you can work with TNG data:

• (i) you can download the raw data files and example scripts in order to work completely on your local system. Start the Example Scripts tutorial.
• (ii) you can use the online API to retrieve specific galaxies/halos of interest without needing to download any full datafiles. Start the API tutorial.
• (iii) you can launch a web-based JupyterLab (or Jupyter notebook) session and explore the data, develop your analysis, run data-intensive and compute-intensive tasks, and make final plots for publication. Start now.

### Documentation

• Background and Important Details - overview of the simulations and physical models, references, caveats, and citation guidelines.
• Data Specifications - description of all fields in the snapshots, group catalogs, merger trees, and supplementary data sets.
• Example Scripts - getting-started guide and 'helper scripts' reference for working with local, raw data files (Python, IDL, Matlab).
• Web-based API - getting-started guide, cookbook of examples, and reference for the web-based query interface.

### Community and Support

• Discussion Forum - ask questions and get help, browse past discussions; includes a changelog of additions/updates.
• Frequently Asked Questions - do check the FAQ first!
• Github Repository - home of the 'helper scripts' for working directly with local data files; get involved directly by making a pull request/issue.
• Contact Us with inquiries about the TNG project in general, to get involved, and to send ideas, suggestions, and comments in general.

Show simulation families: TNG Illustris Types: Baryonic Gravity Only

Simulation Name $L_{\rm box} [Mpc]$ $N_{\rm DM}$ $m_{\rm DM}$ $[M_\odot]$ $m_{\rm gas}$ $[M_\odot]$ $N_{\rm snap}$ $N_{\rm Subfind} (z=0)$ Snaps FoF Subfind SubLink LHaloTree
TNG100-1 $110.7$ $1820^3$ $7.5 \times 10^{6}$ $1.4 \times 10^{6}$ $100$ $4371211$
TNG100-1-Dark $110.7$ $1820^3$ $8.9 \times 10^{6}$ $0$ $100$ $5012155$
TNG100-2 $110.7$ $910^3$ $6.0 \times 10^{7}$ $1.1 \times 10^{7}$ $100$ $698336$
TNG100-2-Dark $110.7$ $910^3$ $7.1 \times 10^{7}$ $0$ $100$ $757923$
TNG100-3 $110.7$ $455^3$ $4.8 \times 10^{8}$ $8.9 \times 10^{7}$ $100$ $118820$
TNG100-3-Dark $110.7$ $455^3$ $5.7 \times 10^{8}$ $0$ $100$ $116020$
TNG300-1 $302.6$ $2500^3$ $5.9 \times 10^{7}$ $1.1 \times 10^{7}$ $100$ $14485709$
TNG300-1-Dark $302.6$ $2500^3$ $7.0 \times 10^{7}$ $0$ $100$ $15724587$
TNG300-2 $302.6$ $1250^3$ $4.7 \times 10^{8}$ $8.8 \times 10^{7}$ $100$ $2471022$
TNG300-2-Dark $302.6$ $1250^3$ $5.6 \times 10^{8}$ $0$ $100$ $2411570$
TNG300-3 $302.6$ $625^3$ $3.8 \times 10^{9}$ $7.0 \times 10^{8}$ $100$ $391144$
TNG300-3-Dark $302.6$ $625^3$ $4.5 \times 10^{9}$ $0$ $100$ $372177$
Illustris-1 $106.5$ $1820^3$ $6.3 \times 10^{6}$ $1.3 \times 10^{6}$ $134$ $4366546$
Illustris-1-Dark $106.5$ $1820^3$ $7.5 \times 10^{6}$ $0$ $136$ $4872374$
Illustris-2 $106.5$ $910^3$ $5.0 \times 10^{7}$ $1.0 \times 10^{7}$ $136$ $689785$
Illustris-2-Dark $106.5$ $910^3$ $6.0 \times 10^{7}$ $0$ $136$ $735751$
Illustris-3 $106.5$ $455^3$ $4.0 \times 10^{8}$ $8.1 \times 10^{7}$ $136$ $121209$
Illustris-3-Dark $106.5$ $455^3$ $4.8 \times 10^{8}$ $0$ $136$ $111992$

In total have 18 runs with 2014 total snapshots and 651.1 TB total data volume,
including 5,911,438,785 FoF groups, 5,772,665,381 Subfind groups, and 10,123,660,679,028 particles.

Simulation Name Parent Sim $L_{\rm box} [Mpc]$ $N_{\rm DM} (z=0)$ $m_{\rm DM}$ $[M_\odot]$ $N_{\rm snap}$ Snaps FoF Subfind
Subboxes: Didn't find anything available for you (try logging in).

Subboxes: in total have 0 runs with 0 total snapshots and 0 bytes total data volume,
including 0 FoF groups, 0 Subfind groups, and 0 particles.