Articles tagged with Black Holes
Researchers use advanced simulation to model large mass ratio black hole merger, predicting characteristics of ultimate merged black hole and its speed. The simulation's success could help plan future gravitational wave detectors and answer mysteries about black holes.
A RUDN University physicist created a software solution to identify the instability regions of black holes, ensuring their mathematical models are physically viable. The approach uses Einstein's equation with added corrections and identifies critical coupling constants that affect model stability.
A team of scientists has created the most detailed family portrait of black holes to date, analyzing gravitational-wave data from LIGO and Virgo detectors. The study reveals new clues about black hole formation and tests Einstein's theory of general relativity, passing all tests with flying colors.
Astronomers observe a direct connection between stellar material and bright flare emitted as star is consumed, revealing the origin of obscuring dust and debris. The study provides insights into supermassive black holes and matter behavior under extreme gravity conditions.
Research reveals black holes emit complex signals when observed from their equator, indicating a unique relation between gravitational waves and black hole behavior. The team discovered that the final black hole's cusp emits more intense gravitational waves, producing multiple 'chirps' as it settles to its final form.
A RUDN University physicist simplified the Einstein-Lovelock theory for black holes by presenting its geometry in a compact form with a limited number of terms, sufficient to describe observed values. This simplification could aid in studying black holes in theories with quantum corrections.
Researchers from the Event Horizon Telescope collaboration used the first horizon-scale image of a black hole to test general relativity, deepening understanding of black holes and ruling out many alternatives. The study found that the size of the black hole shadow corroborates the predictions of general relativity.
Researchers used black hole images to test Einstein's general relativity, identifying modifications that cannot be significantly different from the theory. The new analysis provides a tighter gauge for testing gravity theories, constraining deviations from general relativity even further.
Astrophysicists identify distinctive signatures of stellar-mass black holes in archival X-ray data, separating them from neutron stars. This is the strongest steady signature of stellar-mass black holes to date.
The satellite detected a low-frequency quasi-periodic oscillation (QPO) above 200 keV in a black hole binary, indicating the presence of a relativistic jet near the event horizon. The discovery resolves the long-running debate on the physical origin of low-frequency QPOs.
Rochester Institute of Technology scientists played a key role in detecting the most massive gravitational wave binary observed to date, GW190521. The event revealed an intermediate-mass black hole with masses of about 85 and 66 solar masses.
Researchers at Osaka University used powerful lasers to recreate relativistic magnetic reconnection, a process responsible for X-ray emissions from black holes. This study may help explain the mysterious X-rays emitted by some celestial bodies.
Researchers have detected a signal from the most massive black hole merger observed in gravitational waves, producing an 'intermediate-mass' black hole with a mass of up to 1,000 solar masses. The merger released energy equivalent to eight suns and has raised questions about the formation of such massive black holes.
Researchers suggest a novel process to explain the collision of a large black hole and a much smaller one, proposing that the more massive black hole was a product of a prior merger. This 'hierarchical' merging could generate a merger with a high mass ratio and spin.
Astronomers detect the most massive black hole collision ever observed, involving two mammoth black holes weighing 85 and 66 times the mass of the Sun. The larger black hole is considered 'impossible' due to its mass exceeding predicted limits.
Scientists have observed the heaviest black hole merger yet, with a massive object forming through a previous merger of two smaller black holes. This discovery pushes the boundaries of our understanding of astrophysics and provides new opportunities to test Einstein's theory of general relativity.
The detection of GW190521 reveals the existence of intermediate-mass black holes, weighing in at 100 to 100,000 solar masses. This finding offers insights into the origin of supermassive black holes and raises new questions about their formation.
Researchers have discovered the first intermediate-mass black hole, which has a mass of 142 solar masses. The cosmic event was detected as a brief gravitational wave signal, lasting less than one-tenth of a second, and is believed to have occurred roughly 7 billion years ago.
A new model integrates two phases of matter accumulation in active galaxies, revealing a universal mechanism for ejection of matter by black holes. The research suggests that the molecular phase is part of the outflow, blowing away more matter than previously thought.
The discovery of radio jets in the Phoenix Galaxy Cluster suggests that a supermassive black hole is actively heating intra-cluster gas, preventing star formation. This finding has significant implications for our understanding of galaxy evolution and coevolution.
Astronomers have provided clear evidence for the formation of an accretion disk around a supermassive black hole during a tidal disruption event. The new findings support theoretical predictions and provide unprecedented insights into these unusual events.
A massive spinning black hole powers a plasma jet through magnetic reconnection, releasing energy in 'mini-jets' that produce high-energy gamma radiation. This phenomenon explains how the energy reaches the jet's core from the black hole and ultimately originates from its rotation.
The Q3D team will study three bright quasars to measure the activity that comes from accreting material onto supermassive black holes, revealing how it affects host galaxies. The study aims to understand the relationship between supermassive black holes and their host galaxies by analyzing gas motions in nearby and distant galaxies.
Researchers have discovered a dense, cold gas ejected from the centre of the Milky Way, which could impact star formation and galaxy stability. The finding raises new questions about what's happening in the galactic centre, particularly with regards to the massive black hole at its heart.
A team of researchers used Arecibo Observatory data and NASA's Fermi Large Area Space Telescope to detect a gamma-ray heartbeat coming from a cosmic gas cloud. The 'heartbeat' rhythm matches the precession of a black hole's jets, suggesting that the cloud's emission is powered by the microquasar.
Scientists have detected a mysterious gamma-ray heartbeat from a cosmic gas cloud in the constellation Aquila, powered by a neighbouring precessing black hole. The research team analysed over ten years of data from NASA's Fermi gamma-ray space telescope, revealing a consistent period between the cloud's emission and the black hole's jets.
A team of researchers found that unequal neutron-star mergers can create an electromagnetic signal, which could be detected using gravitational-wave detectors like LIGO. The simulations revealed that the larger star tears apart its partner, creating a slower merger and allowing an 'electromagnetic bang' to escape.
Researchers at the Flatiron Institute and Cornell University developed a robust theoretical model of strange metals, revealing their existence as a new state of matter. The model shows that strange metals exhibit properties linked to temperature and fundamental constants, with surprising connections to black holes and high-temperature ...
Researchers used femtosecond laser direct write technology to simulate curved space-time near a black hole. They observed accelerated single-photon wave packets and fermion pairs escaping the black hole, mimicking Hawking radiation. This experiment demonstrates the potential for quantum simulation in studying general relativity.
Researchers propose a simple model explaining galaxy quenching, attributing it to central black hole 'feedback' that disrupts gas supply. The model reveals that larger galaxies evolve further before their black holes can grow large enough to quench star formation.
Researchers at MIT watched as a supermassive black hole's corona was abruptly destroyed, causing its brightness to drop by a factor of 10,000 in under a year. The corona eventually rebuilt itself, sparking hopes for understanding how black holes' coronas are heated and powered.
Astronomers have discovered one of the lowest-mass supermassive black holes (SMBHs) ever observed, weighing less than a million times the mass of our Sun. The finding provides a major step in understanding how SMBHs are formed and challenges the long-held assumption that they were born with extremely large masses.
Researchers are using Jupiter's mass and orbit to help locate the center of gravity of the solar system, which can signal the presence of massive black holes. By analyzing changes in pulsar timing, they aim to detect gravitational waves that warp space-time.
Researchers at Penn State suggest that supermassive black hole coronae could be the source of high-energy cosmic neutrinos, exceeding expectations. The new model predicts electromagnetic counterparts in soft gamma-rays, with next-generation detectors poised to explore this possibility.
The discovery of Po?niua??ena, the second-most distant quasar, sheds light on the formation of massive black holes and galaxies in the young universe. The quasar's existence challenges current theories, requiring a new mechanism to explain its massive size formed so early in the universe's history.
Astronomers have spotted evidence of a light-producing scenario during a black hole merger, with the flare likely resulting from the reaction of gas to the merging black holes. The event, observed by ZTF and other telescopes, provides insights into the behavior of supermassive black holes.
Astronomers have discovered the second most distant quasar, Pōniuāʻena, containing a monster black hole twice the mass of other quasars at the same epoch. The discovery presents significant challenges to current theories on supermassive black hole formation and growth in the early universe.
Astronomers have discovered the second-most distant quasar, Pōniuā`ena, powered by a supermassive black hole 1.5 billion times more massive than our Sun. The discovery challenges current theories of how these massive black holes formed and grew in the young universe.
Scientists have detected an object of 2.6 solar masses, firmly placing it within the 'mass gap' between neutron stars and black holes. The discovery was made using LIGO and Virgo detectors and may challenge current theoretical models.
Researchers have developed a method to detect the presence of weak gravitational wave events, revealing a lost 8 billion light years of universe evolution. This breakthrough will allow scientists to observe farther away in space-time and gain insights into the early universe's structure.
Researchers discovered that quasar gamma-ray emission extends over thousands of light-years along plasma jets, contradicting previous assumptions. This finding reveals that particle acceleration occurs not only near the black hole but also along the entire jet length.
Astronomers have detected a supermassive black hole's heartbeat, which has been ongoing for over ten years. The signal was spotted again in 2018 using X-ray satellite observations, providing valuable information about the black hole's event horizon.
Astronomers have observed a confirmed heartbeat in a supermassive black hole for over ten years, with the signal repeating every hour. The research provides new insights into the black hole's size and structure close to its event horizon.
A team of researchers has discovered that quasar jets change from parabolic to conical shapes at a distance from the black hole, similar to flared jeans. This finding challenges the long-held assumption of narrow cone-shaped jets and provides new insights into black hole acceleration.
New research suggests black holes could be like holograms, with information concentrated in a two-dimensional surface. This idea aligns with Einstein's theory of relativity and has significant implications for understanding these cosmic bodies.
A new computer simulation theory suggests that supermassive black holes form from gas clouds enriched with heavy elements, explaining the large number observed in galaxies today. The simulations showed that a massive star can form 10,000 times more massive than the Sun, which will continue to grow and evolve into a giant black hole.
A new study reveals that supermassive black holes experience a surge in activity as galaxies within galaxy clusters stop forming stars. The intense pressure allows for a final feast of gas clouds and stars before shutting off normal feeding, suggesting an intricate interplay between black hole behavior and star formation.
Astronomers using ALMA have spotted quasi-periodic flickers in millimeter-waves from the center of the Milky Way, suggesting a rotating radio spot circling a supermassive black hole. The findings provide insight into space-time with extreme gravity and may shed light on the behavior of gas around the black hole.
Researchers discovered black hole-neutron star mergers in globular star clusters can be detected using computer simulations. The study offers critical insights into the fusion of massive stellar objects, with potential implications for gravitational wave detection.
A new model explains the simultaneous origins of Fermi bubbles and galactic center biconical X-ray structure, with energy injection from a pair of jets emanating from Sgr A* five million years ago. The study suggests the total energy injected is comparable to 20,000 supernovae.
The National Science Foundation has awarded a $440,000 grant to Rochester Institute of Technology researchers to develop the Einstein Toolkit for simulating black holes, neutron stars, and other astrophysical phenomena. The toolkit will be scaled up to handle exascale-level resources on large supercomputers.
A team of Clemson University researchers has detected a relativistic jet emerging from two colliding galaxies, providing the first photographic proof of this phenomenon. The discovery was made using advanced telescopes and offers insights into the formation of jets in galaxy collisions.
Astronomers have discovered a black hole weighing 50,000 times the mass of our Sun, offering the strongest evidence yet for intermediate-mass black holes in the universe. Hubble's observations confirmed that the object was tearing apart a star that passed too close, providing key evidence for its existence.
Astronomers used ALMA to observe a galaxy with young, powerful jets ejected from a supermassive black hole. The team found clear evidence of disrupted gaseous clouds impacted by the jets' high speeds, providing insight into the evolutionary process of galaxies in the early Universe.
Researchers have introduced a method to rapidly cycle through staining, destaining, and restaining of cell samples using black hole quenchers in under 1 hour. This allows for precise characterization of immune cells in tumors, enabling the selection of suitable treatments.
A recent study suggests that supermassive black holes could have formed in just 50-100 million years after the Big Bang, thanks to the rapid migration of stellar black holes. This theory reconciles the short time required for their growth with the age of the Universe.
Researchers predict a nested series of rings within black hole images, with each successive ring becoming increasingly sharper due to its higher number of orbits around the black hole. This discovery enables new possibilities for observing black holes using only two telescopes far apart.
A team tracked a black hole's ejecting material using e-MERLIN and other telescopes over months, gaining insight into how black holes feed energy into their environment. The observations revealed ejections moving at near-light speed, with implications for understanding the role of black holes in galaxy growth.
Researchers found over a dozen massive black holes in dwarf galaxies that were previously thought too small to host them. The study revealed that most black holes were located at the outskirts of galaxies rather than centers.
Astronomers have discovered a new class of bizarre objects at the center of the Milky Way galaxy, which resemble gas and behave like stars. The objects are thought to be binary stars that merged due to the strong gravitational force of the supermassive black hole, with four additional objects found in the same orbit.