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TNG

Public Data Access Overview

All the results and data from the three IllustrisTNG simulation volumes -- TNG50, 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.

The TNG50 Milky Way+Andromeda Sample and Data Release page is now available.

Stay tuned for future simulation data releases!

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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.

Web-based Exploration and Analysis

Don't want to download any data to your local machine right 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, Julia).
  • 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.
  • Simulation Landscape - comparison of cosmological hydrodynamical projects.

Download Simulation Data

Select a simulation to browse the available data files and get direct download links:

Show: Primary Volumes Subboxes Simulation families: TNG Illustris Other Types: Baryonic Gravity Only Low Resolution

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 $302.6$ $625^3$ $4.5 \times 10^{9}$ $0$ $100$ $372177$
TNG50-1 $51.7$ $2160^3$ $4.5 \times 10^{5}$ $8.5 \times 10^{4}$ $100$ $5688113$
TNG50-1-Dark $51.7$ $2160^3$ $5.4 \times 10^{5}$ $0$ $100$ $6616159$
TNG50-2 $51.7$ $1080^3$ $3.6 \times 10^{6}$ $6.8 \times 10^{5}$ $100$ $859077$
TNG50-2-Dark $51.7$ $1080^3$ $4.3 \times 10^{6}$ $0$ $100$ $991928$
TNG50-3 $51.7$ $540^3$ $2.9 \times 10^{7}$ $5.4 \times 10^{6}$ $100$ $134779$
TNG50-3-Dark $51.7$ $540^3$ $3.4 \times 10^{7}$ $0$ $100$ $150309$
TNG50-4 $51.7$ $270^3$ $2.3 \times 10^{8}$ $4.3 \times 10^{7}$ $100$ $22869$
TNG50-4-Dark $51.7$ $270^3$ $2.8 \times 10^{8}$ $0$ $100$ $22963$
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 $106.5$ $455^3$ $4.8 \times 10^{8}$ $0$ $136$ $111992$

Primary volumes: in total have 26 runs with 2814 total snapshots and 846.5 TB total data volume,
including 7,814,654,422 FoF groups, 7,397,442,543 Subfind groups, and 13,554,923,373,776 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.

(c) 2023 The TNG Collaboration.