Physicist Simplifies Einstein-Lovelock Theory for Black Holes
Allowing for quantum corrections, the Einstein-Lovelock theory describes black holes with an equation that contains an infinite number of terms. However, according to a RUDN…
Black Hole
Unique Test of General Relativity Using a Black Hole – Einstein’s Theory Remains Intact Even Under Extreme Conditions
If a picture is worth a thousand words, what might the first horizon-scale image of a black hole tell us? A new paper by researchers…
“Echo Mapping” Light Bursts From Supermassive Black Holes in Faraway Galaxies to Measure Vast Cosmic Distances
Matter swirling around supermassive black holes creates bursts of light that “echo” in nearby dust clouds. These traveling signals could serve as a new cosmic…
Einstein’s Theory of General Relativity Tested Using Black Hole Shadow
Einstein’s description of gravity just got much harder to beat after astrophysicists put general relativity to a new test with black hole images. Einstein’s theory…
Galaxies Trapped in the Web of a Supermassive Black Hole – Cosmic “Spider’s Web” of Gas Extends Over 300 Times the Size of the Milky Way
With the help of ESO’s Very Large Telescope (VLT), astronomers have found six galaxies lying around a supermassive black hole when the Universe was less…
Insight-HXMT Discovers Closest High-Speed Relativistic Jet to Black Hole
Insight-HXMT, China’s first space X-ray astronomical satellite, has discovered a low-frequency quasi-periodic oscillation (QPO) above 200 kiloelectron volts (keV) in a black hole binary, making…
Event Horizon Telescope Reveals Turbulent Black Hole Evolution: Wobbling Shadow of the M87 Black Hole
Analysis of the event horizon telescope observations from 2009-2017 reveals turbulent evolution of the M87 black hole image. In 2019, the Event Horizon Telescope (EHT)…
Cosmic X-Rays Reveal a Distinctive Signature of Black Hole Event Horizons
An international team of astrophysicists has found a distinctive signature of black hole event horizons, unmistakably separating them from neutron stars — objects, comparable to…
Innovative New Method Developed to Detect Colliding Supermassive Black Holes
A new study has developed an innovative method to detect colliding supermassive black holes in our Universe. The study has just been published in the Astrophysical…
Researchers Find the Origin and Maximum Mass of Massive Black Holes Observed by Gravitational Wave Detectors
Through simulations of a dying star, a team of theoretical physics researchers have found the evolutionary origin and the maximum mass of black holes which…
Monumental Collision of “Impossible” Black Holes Detected for the First Time
The most massive black hole collision ever detected has been directly observed by the LIGO and VIRGO Scientific Collaboration, which includes scientists from The Australian National University (ANU). The…
Lopsided “David and Goliath” Black Hole Merger With an Oddball Origin Story
Researchers suggest a novel process to explain the collision of a large black hole and a much smaller one. A lopsided merger of two black…
Universal Mechanism for Ejection of Matter by Black Holes Proposed
The process occurs in active-core nuclei. A molecular gas cloud that accumulates in the central region is blown away by radiation from the black hole’s…
Massive “Bang” in LIGO and Virgo Gravitational-Wave Detectors: Fabric of Space-Time Shaken by Binary Black Hole Merger
A binary black hole merger likely produced gravitational waves equal to the energy of eight suns. For all its vast emptiness, the universe is humming…
Quick ‘Bang’ Signals the Most Massive Gravitational-Wave Source Ever Detected
Scientists Detect First-of-Its-Kind ‘Intermediate-Mass’ Black Hole An international research collaboration including Northwestern University astronomers has witnessed the birth of an “intermediate-mass” black hole. This is…
Jets of Hot Gas Detected Blasting Out From Black Hole at the Heart of the Phoenix Galaxy Cluster
Radio astronomers have detected jets of hot gas blasted out by a black hole in the galaxy at the heart of the Phoenix Galaxy Cluster,…
Jaw Dropping Observations of Black Hole Devouring a Star Reveal Rapid Disk Formation
First clear confirmation of accretion disk formation in a tidal disruption event without x-ray emissions supports theoretical predictions. When a star passes too close to…
Astronomers Discover Continuous Infrared Winds During the Eruption of a Stellar Mass Black Hole
Until now, these flows of material had been detected only in other wavelength ranges, such as X-rays or the visible, depending on the phase in…