AEI has movedJun 4, 2025

🎉 Happy belated birthday, GW230529!

Two years and a few days ago, the @LIGO Livingston gravitational-wave detector observed a remarkable gravitational-wave signal.

ℹ️ https://www.aei.mpg.de/1138125/mysterious-object-in-the-gap

Detected soon after the beginning of the fourth joint observing run of the LIGO-Virgo-KAGRA collaborations, the signal came from the merger of a compact object with 1.3 to 2.1 times the mass of our Sun with another compact object with 2.6 to 4.7 times the solar mass.

Astronomers believe that the lighter object is a neutron star and the heavier is a lightweight black hole.

How that lightweight black hole formed is unknown. Its masse falls into the “lower mass gap” between the heaviest neutron stars and the lightest black holes.

📄 https://iopscience.iop.org/article/10.3847/2041-8213/ad5beb

Image: I. Markin (@unipotsdam), T. Dietrich (@unipotsdam and @mpi_grav) H. Pfeiffer, A. Buonanno (@mpi_grav)

#GW230529 #GravitationalWaves #MassGap #BlackHole #NeutronStar #Astronomy

Matt WillemsenApr 13, 2024
Incredibly Rare Cosmic Object Detected in Gravitational Waves For The First Time
https://www.sciencealert.com/incredibly-rare-cosmic-object-detected-in-gravitational-waves-for-the-first-time #astronomy #GravityWave #BlackHole #NeutronStar #MassGap
Incredibly Rare Cosmic Object Detected in Gravitational Waves For The First Time

A gravitational wave detected in May of last year has given us a type of cosmic collision we've never seen before.

ScienceAlert
UofG Gravitational ResearchApr 5, 2024

Want to get the low down on today's @LIGO - VIRGO - KAGRA Gravitational Waves announcement for GW230529?

The Science Summary is at: https://www.ligo.org/science/Publication-GW230529/

#GravitationalWaves #LIGO #VIRGO #KAGRA #GW230529 #NeutronStar #BlackHole #MassGap