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SpECTRE is an open-source code for multi-scale, multi-physics problems inastrophysics and gravitational physics. It is based on high-order spectralfinite element methods and massive parallelism. In the future, we hope thatit can be applied to problems across discipline boundaries in fluiddynamics, geoscience, plasma physics, nuclear physics, andengineering. It runs at petascale and is designed for future exascalecomputers.

SpECTRE is being developed in support of our collaborative SimulatingeXtreme Spacetimes (SXS) research program into the multi-messengerastrophysics of black hole and neutron star mergers, core-collapse supernovae,and gamma-ray bursts.

For an overview of some of SpECTRE's features and some simulations performedwith SpECTRE, visit the gallery:

• Gallery:https://spectre-code.org/gallery

You find instructions on installing and running the code, as well as many guidesand tutorials, in the documentation:

• Documentation:https://spectre-code.org/

Please cite SpECTRE in any publications that make use of its code or data. Citethe latest version that you use in your publication. The DOI for this versionis:

• DOI:10.5281/zenodo.15040490

You can cite this BibTeX entry in your publication:

@software{spectrecode,author ="Deppe, Nils and Throwe, William and Kidder, Lawrence E. and Vu,Nils L. and Nelli, Kyle C. and Armaza, Crist\'obal and Bonilla, Marceline S. andH\'ebert, Fran\c{c}ois and Kim, Yoonsoo and Kumar, Prayush and Lovelace,Geoffrey and Macedo, Alexandra and Moxon, Jordan and O'Shea, Eamonn andPfeiffer, Harald P. and Scheel, Mark A. and Teukolsky, Saul A. and Wittek,Nikolas A. and others",title ="\texttt{SpECTRE v2025.03.17}",version ="2025.03.17",publisher ="Zenodo",doi ="10.5281/zenodo.15040490",url ="https://spectre-code.org",howpublished ="\href{https://doi.org/10.5281/zenodo.15040490}{10.5281/zenodo.15040490}",license ="MIT",year ="2025",month ="3"}

To aid reproducibility of your scientific results with SpECTRE, we recommend youkeep track of the version(s) you used and report this information in yourpublication. We also recommend you supply the YAML input files and, ifappropriate, any additional C++ code you wrote to compile SpECTRE executables assupplemental material to the publication.

See ourpublication policyfor more information.

You can find logos and other visuals (e.g. to put on slides) in various formats,colors, and sizes here:

• Logos and visuals