Today, an international scientific collaboration released the largest catalog ever of collisions involving black holes and neutron stars, raising the total to 90 events. The results suggest that intermediate-mass black holes are more common than scientists previously thought. The catalog also includes the second discovery of an intriguing object that seems too small to be a black hole, yet too large to be a neutron star.
Scientists with the LIGO-Virgo-KAGRA Collaboration picked up gravitational waves, ripples in space time, from these collisions using an international gravitational-wave observatory network. The collaboration includes Deirdre Shoemaker, Pablo Laguna and Aaron Zimmerman, faculty members in the Department of Physics at The University of Texas at Austin.
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