Simulating eXtreme Spacetimes: Black holes, neutron stars, and beyond.
Joined April 2013
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31 Photos and videos
Pinned Tweet
11 Feb 2016
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SXS Project retweeted
8 Oct 2025
And now you can read all about it in Caltech's press release! caltech.edu/about/news/catal…
6 Oct 2025
🎉 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/1…
Also on the @arxiv at arxiv.org/abs/2505.13378
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6 Oct 2025
🎉 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/1…
Also on the @arxiv at arxiv.org/abs/2505.13378
20 May 2025
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.
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2 Sep 2025
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
2 Sep 2025
Gravitational field equations describing binary black holes can be recast in a form resembling coupled Maxwell’s equations for electrodynamics go.aps.org/4g0K9g6
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29 Aug 2025
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
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29 Aug 2025
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
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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=3B6WKSWD…
🎬I Markin/T Dietrich/H Pfeiffer/SXS Collaboration
#GWTC4 #O4IsHere
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SXS Project retweeted
12 Aug 2025
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)
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4 Jun 2025
Check out this article about star quakes and monster shocks — research done by SXS collaboration members Yoonsoo Kim and Elias Most, both at @Caltech
To better understand the extreme physics underlying such a grizzly demise, researchers at Caltech are using supercomputers to simulate black hole–neutron star collisions.
caltech.edu/about/news/star-…
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SXS Project retweeted
20 May 2025
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
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20 May 2025
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.
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20 May 2025
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—
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20 May 2025
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.
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