Tag: #gravitationalwaves

Gravitational-wave catalog reveals long-predicted ‘missing’ range in black hole masses

Analysis of dozens of LIGO-Virgo-KAGRA mergers finds evidence for the pair-instability mass gap, linking black hole sizes to stellar deaths.

#gravitationalwaves, #blackholes, #ligo, #astrophysics, #stars

Oval Orbit Revealed in LIGO’s 2020 Neutron Star–Black Hole Crash

A new reanalysis of GW200105 finds the pair merged on an eccentric orbit, pointing to a chaotic, cluster-like origin rather than a quiet stellar partnership.

#gravitationalwaves, #ligo, #blackhole, #neutronstar, #astrophysics

Reanalysis of Landmark LIGO Signal Suggests Black Hole–Neutron Star Crash Had an Oval Orbit

A new study finds GW200105 kept a surprisingly eccentric orbit before merging, pointing to formation in dense clusters or triple-star systems.

#gravitationalwaves, #ligo, #blackholes, #neutronstars, #astrophysics

New LIGO–Virgo–KAGRA Catalog Lists 218 Gravitational-Wave Events, Nearly Doubling Known Cosmic Mergers

GWTC-4 adds 128 new detections from 2023–24, expanding the menagerie of black-hole and neutron-star mergers and sharpening tests of cosmology.

#ligo, #gravitationalwaves, #blackholes, #astronomy, #cosmology

LIGO’s latest catalog doubles the haul of gravitational-wave detections, revealing new black hole patterns

The GWTC-4.0 catalog adds 128 new merger candidates from LIGO’s latest run, bringing the total to 218 and sharpening clues about black holes and cosmic expansion.

#gravitationalwaves, #ligo, #blackholes, #astronomy, #cosmology

Study Warns Ultra-High-Frequency Gravitational Waves May Be Too Faint to Hear

A new arXiv analysis finds cosmological bounds leave few viable sources of megahertz–gigahertz gravitational waves, tightening targets for would-be detectors.

#gravitationalwaves, #cosmology, #earlyuniverse, #physics, #detectors

NANOGrav Detects Low-Frequency Gravitational Waves, Advancing Astrophysical Research

NANOGrav detects low-frequency gravitational waves, unveiling new insights into cosmic events and supermassive black holes.

#gravitationalwaves, #nanograv, #astrophysics, #blackholes, #pulsars