#black-holes

All articles tagged with "black-holes"

Researchers say merger data hints at a gap in black hole masses.
That gap matches models in which some massive stars are destroyed in pair-instability supernovae.
The result suggests gravitational-wave astronomy is becoming a population science, not just a discovery tool.

DT Editorial Team·Apr 1, 2026·via arstechnica.com

LIGO-Virgo-KAGRA detected gravitational waves from a 100-solar-mass black hole merger in November 2024, followed seconds later by a gamma-ray burst
Standard astrophysics predicts black hole mergers produce no light—making this a potentially unprecedented and theoretically challenging observation
If confirmed, this would be only the second multi-messenger cosmic event ever detected, after the landmark neutron star merger in 2017

DT Editorial Team·Mar 14, 2026·4 min read·via phys.org

LOFAR telescope network mapped 13.7 million radio sources across the northern sky
Survey revealed millions of active supermassive black holes, merging galaxies, and supernova remnants
Low-frequency radio observations detect cosmic phenomena invisible to optical telescopes
Data set contains petabytes of information that will fuel research for years

DT Editorial Team·Feb 25, 2026·5 min read·via space.com

XRISM detected the most violent turbulence ever recorded in a galaxy cluster, centered on black hole M87*
The spacecraft can measure gas velocities around black holes for the first time, a capability no previous X-ray telescope possessed
Gas velocities are highest near the black hole and drop off rapidly, driven by turbulent eddies and outflowing shockwaves
The findings explain how black holes regulate cooling in galaxy clusters through active galactic nucleus feedback
Results were published in Nature and represent XRISM's showcase achievement since its 2023 launch

DT Editorial Team·Feb 21, 2026·7 min read·via space.com

A millisecond pulsar candidate spinning every 8.19 milliseconds was detected near the Milky Way's supermassive black hole
The discovery emerged from the Breakthrough Listen Galactic Center Survey using the Green Bank Telescope
If confirmed, it could serve as a precision tool for testing Einstein's general relativity under extreme gravity
Follow-up observations are underway, with all data released publicly for independent verification
Very few pulsars have been found near Sagittarius A* despite models predicting thousands should exist

DT Editorial Team·Feb 17, 2026·5 min read·via sciencedaily.com