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Binary Black Holes

All articles tagged with #binary black holes

astronomy2 days ago•55 min saved

Cosmic dance through starlight: binary black holes could be spotted before waves wake the universe

Astronomers propose that gravitational lensing by pairs of merging supermassive black holes can magnify background stars into repeating, bright flashes as the black holes orbit, creating a rotating “caustic” pattern. Detecting these periodic light bursts would reveal binary supermassive black holes long before they merge and emit low‑frequency gravitational waves, enabling early multi‑messenger studies with future surveys from the Vera C. Rubin Observatory and the Roman Space Telescope, and later collaboration with LISA.

via Space|

#astronomy #binary-black-holes #black-holes

science4 months ago•4 min saved

First-Ever Image Captures Two Black Holes Orbiting Each Other

Astronomers have captured the first image of two black holes orbiting each other in quasar OJ287, confirming a 40-year-old hypothesis and providing new insights into binary black hole systems using high-resolution radio imaging.

via Universe Today|

#binary-black-holes #black-holes #event-horizon-telescope

science4 months ago•4 min saved

First Image Captures Black Holes in Death Spiral

Astronomers have captured the first direct radio image of two supermassive black holes in a binary system within galaxy OJ 287, confirming models of their interaction and jet emissions, with observations suggesting the secondary black hole's jet is moving more slowly and twisting due to its orbit.

via ScienceAlert|

#binary-black-holes #black-holes #jets

science4 months ago•4 min saved

First-Ever Image of Two Black Holes in Orbit

Astronomers have captured the first direct radio image of two supermassive black holes orbiting each other within the quasar OJ287, providing the clearest evidence yet of binary black holes, and confirming long-standing predictions about their existence.

via Space|

#binary-black-holes #black-holes #quasar-oj287

science6 months ago•2 min saved

First-Ever Third Binary Black Hole Discovered

Astronomers from the Shanghai Astronomical Observatory have discovered evidence suggesting that binary black holes may orbit a third, more massive object, possibly a supermassive black hole, based on unusual gravitational wave signals from GW190814. This groundbreaking finding indicates the presence of a third compact object influencing black hole mergers, opening new avenues for understanding black hole systems and their formation. Future advanced detectors will likely uncover more such complex systems.

via The Daily Galaxy|

#binary-black-holes #black-holes #discovery

science6 months ago•3 min saved

Astronomers Find Evidence of Third Compact Object Behind Binary Black Holes

Researchers from SHAO have found evidence suggesting that a binary black hole merger (GW190814) occurred in the gravitational influence of a third compact object, possibly a supermassive black hole, indicating that binary black holes may often be part of more complex systems. This discovery was made by analyzing gravitational wave signals for line-of-sight acceleration effects, providing new insights into black hole formation and evolution.

via Phys.org|

#binary-black-holes #black-holes #gravitational-waves

astronomy2 years ago•3 min saved

"Unveiling the Universe's Heaviest Black Hole Binary: A 28 Billion Solar Mass Marvel"

Astronomers have discovered a galaxy hosting the heftiest pair of supermassive black holes ever seen, with a combined mass of 28 billion times that of the Sun. The binary black holes, located in a galaxy called B2 0402+379, exhibit peculiar properties that are helping scientists understand the process of black hole growth. The discovery suggests a potential solution to the final parsec problem, as the orbital decay of the binary has stalled due to the lack of nearby stars and gas to transfer orbital momentum. Further investigations will focus on determining whether the supermassive black holes can eventually merge or will remain stranded as a binary.

via ScienceAlert|

#astronomy #astrophysics #binary-black-holes

science-and-astronomy2 years ago•3 min saved

"Dark Energy: Enabling Perfect Pairings of Black Holes in Binary Systems"

Binary black holes may be more stable than previously thought, thanks to the action of dark energy. The expansion of the universe caused by dark energy helps black holes in binary pairs maintain a safe distance from each other. As black holes move, they create gravitational waves that carry angular momentum away from the system, causing the black holes to spiral together and eventually collide. However, the researchers found that two non-rotating black holes could exist in equilibrium, with the gravitational attraction between them counteracted by expansion. This means that from a distance, a pair of black holes would look like a single black hole. The researchers believe their solution could also apply to rotating black holes and more complex black hole systems.

via Space.com|

#binary-black-holes #black-holes #dark-energy

astronomy2 years ago•4 min saved

Galactic Oddities: Unveiling the Enigma of Dual Supermassive Black Holes

Astronomers have discovered that some blazars, bright active galactic nuclei, may contain double supermassive black holes at their cores. The presence of a binary black hole system can cause the jets emitted by one black hole to appear curved and snaky, and can also lead to periodic changes in brightness. By studying an object called OJ 287, researchers found evidence of two black holes in its core, supporting the idea of binary black holes in other blazars. This discovery could help astronomers probe for other binary black holes and gain a better understanding of the inner workings of these black hole systems.

via Universe Today|

#agns #astronomy #binary-black-holes

astronomy2 years ago•5 min saved

"Unveiling the Cosmic Connection: Evidence of Supermassive Binary Systems in Active Galactic Nuclei"

An international research team has presented evidence that the variability in brightness and jet curvature observed in blazars, accreting supermassive black holes in the centers of galaxies, is likely caused by the precession of the jet source. This precession can be attributed to the presence of a second massive black hole or a warped accretion disk. The study suggests that blazar variability may be of deterministic nature rather than stochastic, and the jet curvature could be a signature of binary black holes. Radio observations using Very Long Baseline Radio Interferometry (VLBI) provide the highest resolution for studying these phenomena.

via Phys.org|

#active-galactic-nuclei #astronomy #binary-black-holes