SXS Project

New movies of #GravitationalWaves for the #LIGO detection at black-holes.org/gw150914!

And now you can read all about it in Caltech's press release! caltech.edu/about/news/cat…

🎉 Happy paper publication day! 🎉 Our third catalog of binary black hole simulations, now published in Classical and Quantum Gravity. And it's open access! Scheel et al. 2025 Class. Quantum Grav. 42 195017 iopscience.iop.org/article/10.108… Also on the @arxiv at arxiv.org/abs/2505.13378

Just published in @PhysRevLett! Check out this article by SXS researchers Boyeneni, Wu and Most (@Caltech) on interpreting colliding black holes similar to the attraction of two electric charges

Cranking up the temperature! SXS researchers Hai-Yang Wang, Elias Most and Philip Hopkins (@Caltech) show how hot flows around supermassive black hole binaries with strong magnetic fields alter their feeding behavior. Full results at arxiv.org/abs/2508.16855

Earthquakes on neutron stars?! SXS researchers Louis Burnaz and Elias Most (@Caltech) and Ashley Bransgrove (@Princeton) simulate how these could be detected in signals from very active radio burst transients. Read their results at arxiv.org/abs/2508.18033

@ego_virgo @LIGOLA @LIGOWA @KAGRA_PR A spacetime waltz. Simulations consistent with our 86 most confident new detections, each showing the orbiting components and their emitted gravitational waves youtube.com/watch?v=3B6WKS… 🎬I Markin/T Dietrich/H Pfeiffer/SXS Collaboration #GWTC4 #O4IsHere

Take a look at the biggest black hole merger ever detected!😲🌌‼️ ~10 billion light years from Earth the Laser Interferometer Gravitational-wave Observatory(#LIGO) detected gravitational waves from the merge of 2 massive black holes Credit: SXS Project(black-holes.org)

Check out this article about star quakes and monster shocks — research done by SXS collaboration members Yoonsoo Kim and Elias Most, both at @Caltech

@AsteroidEnergy It is precession of the orbital plane, which comes along with spin precession! Getting spin flips requires some more fine tuning in parameter space, but is not necessary to get this pretty modulation

@SXSProject Is that precession inspiral due to spin flips? Are there otherwise good cases of spin flip strain signatures?

We are excited to release a major update to our catalog of binary black hole simulations, available at arxiv.org/abs/2505.13378! Such simulations are key to LIGO/Virgo/KAGRA being able to extract science from their gravitational wave detections. 1/14

In particular, as highlighted through Fig. 9 of the paper, while our BBH simulations are generally accurate and long enough (to span the full frequency band) for the LIGO/Virgo/KAGRA detectors, this is not necessarily the case for future detectors. 2/n

There’s a lot more work to do: higher mass ratios, higher eccentricity, and meeting the accuracy requirements of next-generation detectors. Stay tuned for the next version of our catalog! But for now, check out the latest catalog paper at arxiv.org/abs/2505.13378. 14/14

We make it publicly available so everyone has high-quality binary black hole simulation data at their fingertips for their research! Of course, we’re not done yet— 13/14