Articles tagged with Black Holes
A deep-learning algorithm developed by astronomer David Harvey can untangle the complex signals of self-interacting dark matter and AGN feedback in galaxy cluster images. The Inception model achieved an accuracy of 80% under ideal conditions, showcasing its potential for analyzing vast amounts of space data.
Researchers used high-resolution supercomputers to simulate accretion disk turbulence, finding that slow magnetosonic waves dominate the inertial range. This discovery sheds light on ion heating and acceleration in black hole environments.
Researchers found that dark matter radiation could heat hydrogen gas long enough for gravity to condense it into clouds big and dense enough to turn into supermassive black holes. This process bypasses the need for stellar burning, accretion, and mergers, which typically take billions of years.
The EHT Collaboration has conducted test observations using ALMA and other facilities to detect light from distant galaxies at a frequency of around 345 GHz. The Collaboration achieved the highest resolution ever obtained from the surface of Earth, detecting details as fine as 19 microarcseconds.
The Event Horizon Telescope has achieved the highest resolution ever obtained from Earth, detecting light from the centers of distant galaxies at a frequency of 345 GHz. This allows for multi-color views of the region immediately outside the boundary of cosmic beasts, revealing new properties about supermassive black holes.
Scientists at the DOE's Princeton Plasma Physics Laboratory have directly observed magneto-Rayleigh Taylor instabilities in plasma, which could aid in understanding how black holes produce vast intergalactic jets. The observation confirms that magnetic fields play a crucial role in forming these jets.
Researchers led by Katherine Chworowsky found that early galaxies were not as massive as initially thought due to black holes' influence. The study suggests that these black holes consume gas, emitting heat and light that makes the galaxies appear brighter than they really are.
Simulations predict that the violent deaths of rapidly rotating stars can create detectable gravitational waves, which could aid understanding of collapsars and black holes. The signals from these events are strong enough to be picked up by LIGO and may already exist in datasets.
The study found that chaotic movements in magnetic fields heat plasma and make it radiate, explaining the observed X-ray radiation from accretion disks. The simulation also showed that plasma can exist in two distinct equilibrium states, depending on external radiation field.
A team of astrophysicists developed a model to predict the brightening and dimming of AT2018fyk, a repeating partial TDE. The model accurately forecasted the source's dimming in August 2023, confirming its accuracy.
A new study published in Physical Review Letters suggests that nanohertz gravitational waves may not originate from supercool first-order phase transitions. Researchers found that such transitions would struggle to complete, shifting the frequency of the waves away from nanohertz frequencies.
Scientists have developed a method to simulate gravitational waves in the lab using cold atoms, a phenomenon similar to gravitational waves. This breakthrough allows for easier study and understanding of these cosmic waves, which are challenging to detect.
Researchers used hydrogen to track dark matter's presence in the universe, revealing a tension between observations and theoretical predictions. The findings suggest that an unknown particle or new physics may be responsible for this discrepancy.
Researchers found that pairs of supermassive black holes can merge due to previously overlooked behavior of dark matter particles, proposing a solution to the longstanding final parsec problem. This discovery provides insight into the nature of dark matter and its interaction with supermassive black holes.
Researchers found an intermediate-mass black hole in star cluster IRS 13 near SgrA*, suggesting it could be a 'seed' for the central supermassive black hole. The discovery provides insights into the galaxy's evolution and the formation of intermediate-mass black holes.
Astronomers have uncovered 21 neutron stars in wide orbits around stars like our Sun, revealing the first dark neutron star population. The discovery was made possible by the European Space Agency's Gaia mission, which scanned the sky and measured wobbles of over a billion stars.
Researchers propose that simple forms of ultra-light scalar field matter could generate detectable gravitational wave backgrounds soon after the Big Bang. This discovery could shed light on dark matter and its role in the universe's mass, offering a new avenue for fundamental physics research.
Astrophysicists suggest that galaxies control growth through how they 'breathe', using supersonic jets to transmit energy and slow gas-accretion. This helps maintain the galaxy medium, keeping the supermassive black hole engine supplied with fuel.
Astronomers have discovered seven fast-moving stars in the Omega Centauri globular cluster, providing compelling evidence for the presence of an intermediate-mass black hole. The team analyzed over 500 Hubble images to search for signs of gravitational pull from the black hole.
Researchers at the University of Utah and Max Planck Institute have discovered an intermediate-mass black hole in the Omega Centauri cluster, providing crucial evidence for a long-theorized class of black holes. The discovery offers insights into galaxy evolution and the formation history of globular clusters.
Researchers have found the nearest massive black hole to Earth, located at the center of Omega Centauri, a galaxy that was swallowed by the Milky Way. The discovery provides insight into the formation history of galaxies and confirms long-held suspicions about the existence of intermediate-mass black holes.
Researchers have discovered a hidden treasure in the Milky Way, identifying Cygnus X-3 as an ultra-luminous X-ray source. The use of X-ray polarized vision has revealed the configuration of dense matter surrounding the black hole, sparking new insights into extreme matter consumption.
A team of scientists from the University of Warsaw detected a population of massive black holes, which could comprise at most a few percent of dark matter. The findings were published in Nature and the Astrophysical Journal Supplement Series.
Researchers at Chalmers University of Technology discovered a powerful rotating magnetic wind in galaxy ESO320-G030, suggesting its role in supermassive black hole growth. The study reveals similarities between this process and the birth of stars.
Researchers discovered a rotating, magnetic wind that helps the galaxy's central supermassive black hole grow, similar to the birth of stars and planets. The study provides new clues to solving the mystery of how supermassive black holes grow, with potential implications for understanding galaxy evolution.
The International Gemini Observatory and Subaru Telescope have discovered the most distant pair of merging quasars, seen only 900 million years after the Big Bang. The team used follow-up spectroscopy to confirm the nature of the quasar pair and their host galaxies.
A new study reveals that NASA's exoplanet-hunting satellite has observed the smaller black hole of a binary system directly for the first time. The discovery was made possible by the satellite's precise timing, which allowed researchers to detect a sudden burst of brightness from the smaller black hole.
Researchers discovered wind from a black hole's radiation blasting gas out of its galaxy at an unprecedented speed. The study sheds light on how active black holes shape their galaxies by spurting on or snuffing out new star formation.
Researchers discovered nine X-ray flares from Sagittarius A* and analyzed a decade's worth of data to understand the black hole's environment. They also examined the black hole's activity using echoes from a giant molecular cloud, providing insights into its past activity.
A team of researchers used a hybrid approach to track the growth of supermassive black holes, finding that accretion dominated growth in most cases. Mergers made notable contributions, especially for massive black holes over the past 5 billion years.
Researchers suggest microscopic, ultradense black holes formed in first quintillionth of a second after Big Bang may have produced smaller, super-charged black holes with unprecedented nuclear charge. These tiny, 'super-charged' black holes could have influenced atomic nucleus formation and detection.
Sean McWilliams' team will study stellar-mass and massive binary inspirals, improving modeling accuracy for the Laser Interferometer Space Antenna (LISA). The project aims to enhance the instrument's science mission by making necessary dramatic improvements in modeling accuracy.
Simulations reveal that dense molecular clouds can give birth to very massive stars that evolve into intermediate-mass black holes. The study provides new insights into the potential mechanisms of intermediate-mass black hole formation, which could have significant implications for our understanding of these enigmatic objects.
Researchers propose a novel approach to correct the leading model of primordial black hole (PBH) formation, aligning with cosmic microwave background observations. This could imply fewer PBHs than expected, potentially affecting the dark matter theory and gravitational wave events.
Researchers propose a new model that predicts far fewer primordial black holes than previously thought, which could be a strong candidate for dark matter. The study uses quantum field theory to explain the formation of these miniature black holes in the early universe.
Researchers at MIT have developed a new method to measure the spin of supermassive black holes by tracking the pattern of X-ray flashes produced during tidal disruption events. By analyzing the wobble of the accretion disk, they were able to determine that the nearby black hole was spinning at less than 25% the speed of light.
Astronomers uncover evidence of a massive star's quiet demise into a black hole without a supernova explosion. The VFTS 243 system shows minimal signs of an explosion, offering insight into stellar evolution and collapse theories.
Astronomers have observed the faint light from stars in the host galaxies of three ancient quasars, revealing clues to how the earliest supermassive black holes and galaxies evolved. The study suggests that some of the earliest
Astronomers have discovered an enormous circular radio feature around a galaxy, dubbed the Cloverleaf, which was created by clashing groups of galaxies. The XMM-Newton satellite has detected X-ray emission associated with this structure for the first time, revealing clues about its formation and the merger process.
The new software can detect gravitational wave signals from neutron star collisions more accurately, allowing for faster alerts and enabling further research. This improvement will help scientists better understand heavy element production, including gold and uranium, and the behavior of neutron stars.
A team led by Caltech scientists used AI and telescope data to recover the first 3D video showing what flares could look like around Sagittarius A* (Sgr A*), a supermassive black hole. The 3D flare structure features two bright, compact features located about 75 million kilometers from the center of the black hole.
Astronomers have identified a massive stellar black hole with a mass of 33 solar masses, making it the most massive found in the Milky Way. The black hole is located at 2000 light-years away and was discovered using data from the European Space Agency's Gaia mission.
Researchers have discovered a star orbiting a massive black hole 33 times heavier than the sun's mass, located 1500 light-years away from Earth. The binary system Gaia BH3 contains an ordinary star that seems to have formed over ten billion years ago.
Researchers at Rice University and the University of Illinois Urbana-Champaign have found that chemical reactions can scramble quantum information, similar to black holes. This discovery could lead to new methods for controlling molecular behavior and improving the reliability of quantum computers.
Physicists calculated that neutron stars can heat up quickly due to energy transfer from dark matter particles, providing a potential way to detect dark matter. This process could reveal the nature of dark matter and its interactions with regular matter.
Astrophysicists simulated 1,000 stars orbiting the galaxy's central supermassive black hole and found that collision survivors can lose mass to become stripped down low-mass stars or merge with other stars. The likelihood of collision increases for stars closer to the supermassive black hole.
Researchers analyze data from another series of observations to study Sgr A*, finding that strong and ordered magnetic fields are critical to how black holes interact with gas and matter around them. The discovery enhances theoretical models and simulations, refining our understanding of black hole dynamics near the event horizon.
Researchers observed strong, twisted, and organised magnetic fields near the black hole at the centre of the Milky Way galaxy. The findings suggest that strong magnetic fields may be common to all black holes.
Researchers used a powerful framework called THEMIS to generate clear images of the Sagittarius A* (Sgr A*) black hole, revealing its plasma ring and magnetic field lines. The study provides strong evidence for the need of strong magnetic fields in the accretion disk to push accreting plasma around.
Scientists unveil strong and organized magnetic fields near Sagittarius A* black hole, strikingly similar to M87*, suggesting common traits among all black holes. The discovery hints at a hidden jet in Sgr A* and reveals the importance of magnetic fields in black hole interactions.
Astronomers have discovered a new black hole behavior where a smaller black hole repeatedly punches through the disk of a larger black hole, releasing plumes of gas. The findings challenge conventional views on black hole accretion disks and suggest they may be more varied in their contents.
Researchers analyzed over 3,000 CSO candidates and found that these galaxies host supermassive black holes with compact jets that extend up to 1,500 light-years. The team concludes that CSOs have relatively short lifetimes of 5,000 years or less, fueled by tidal disruption events (TDEs) triggered by massive star consumption.
The study confirms the BZ-jet model accurately predicts the morphology of observed jets, including elongated structure and limb-brightening characteristics. The disk-jet model failed to explain these observations. The research bridges the gap between dynamic models and jet properties.
Researchers have created a giant quantum vortex in superfluid helium, mimicking the gravitational conditions near rotating black holes. The study provides new avenues for simulations of finite-temperature quantum field theories within curved spacetimes.
Astronomers have charted the largest-ever volume of the universe with a new map of active supermassive black holes, logging 1.3 million quasars in space and time. This map allows scientists to study dark matter and the universe's expansion by comparing distant quasars and their host galaxies.
The Rensselaer Polytechnic Institute researcher is working with the Tachyon Project to create surrogate machine learning models that can simulate and analyze particle physics data in real-time. This project aims to improve scientific discovery and workflow performance for scientists at Fermilab and ALCF.
Scientists will study neutrinos to solve big questions about the universe. UTA is building portions of two detectors in South Dakota and training students to help with the project.
Physicists have developed a new method to detect gravitational waves with extremely low frequencies, potentially revealing insights into the early universe. The technique analyzes pulsar data and has increased the
Astronomers discover tiny, red versions of massive black holes that could change our understanding of their origins. The 'baby quasars' are small-scale black holes with masses between ten and a hundred million solar masses, observed using the James Webb Space Telescope.
A study using machine learning classifies galaxy mergers and finds that mergers are not strongly associated with black-hole growth. Cold gas at the center of the host galaxy is necessary for rapid growth, suggesting a more complex relationship between galaxy evolution and supermassive black holes.