Articles tagged with Black Holes
A team of researchers used James Webb Space Telescope data to find massive galaxies with supermassive black holes showing no sign of star formation, supporting the theory that SMBHs can suppress gas supply and halt galaxy growth. The study provides new insights into the co-evolution of SMBHs and galaxies.
An international team of researchers has found the first binary star in the immediate vicinity of Sgr A* by analyzing individual observations of dust sources. The discovery provides new clues to how young stars form close to the supermassive black hole, solving a long-standing mystery.
The Event Horizon Telescope has taken detailed measurements of a galaxy's supermassive black hole and its powerful jets. The research reveals strong magnetic fields close to the event horizon and estimates their strength, consistent with previous estimates.
Astronomers have discovered the first binary star orbiting close to Sagittarius A*, a supermassive black hole at the centre of our galaxy. This finding provides new insights into how stars survive in extreme environments and could pave the way for detecting planets near black holes.
A team of scientists captured an astonishing image of a gamma-ray flare emanating from the supermassive black hole at the center of galaxy M87. The flare was tens of millions of times larger than the event horizon and lasted about three days, providing crucial insights into particle acceleration near black holes.
Researchers used pulsar accelerations and stellar velocities to determine the presence of a cluster of stellar mass black holes at the centre of Omega Centauri. The study refines understanding of the formation of these intermediate-mass black holes, which could bridge the gap between stellar and supermassive black holes.
Astronomers have used the Hubble Space Telescope to study a quasar up close, revealing complex structures around a supermassive black hole. The observations show a mysterious L-shaped filamentary structure and small satellite galaxies falling into the black hole, offering insights into quasar formation and galaxy interactions.
Optical spring tracking reduces noise and improves signal clarity for gravitational-wave detectors, enabling scientists to observe distant cosmic events more effectively. The technique has the potential to expand our understanding of black holes and neutron stars as they merge.
Researchers propose that small black holes born in the early universe could have left behind hollow planetoids and microscopic tunnels, potentially detectable with telescopes or by monitoring old materials. The study suggests a low probability of primordial black hole passage but emphasizes the potential for discovery.
Researchers have developed a mathematical model that provides strong evidence for the cosmic censorship conjecture in three dimensions, suggesting singularities inside black holes will always be hidden. The model has implications for quantum gravity and advances efforts to understand thermodynamic properties of black holes.
The National Center for Supercomputing Applications (NCSA) has received the Readers' Choice Award: Best HPC Collaboration and Editors' Choice: Best Use of HPC in Physical Sciences. This is the 14th consecutive year NCSA has been honored with an HPCwire award.
Researchers analyzed 21 distant quasars to find a connection between X-ray emission and wind speed, indicating rapid accretion of matter. This study challenges physics limits and provides insights for future X-ray missions.
Scientists have found that black holes inherit their magnetic fields from their parent stars, specifically the surrounding disk of swirling matter during collapse. This discovery resolves a longstanding mystery and opens doors for further studies of jets.
Researchers observe oscillating pattern in light from binary supermassive black hole system AT 2021hdr, shedding light on tidal disruption of gas cloud. The system, located 1 billion light-years away, contains 40 million times the Sun's mass and will collide in approximately 70,000 years.
A team of astrophysicists has developed a novel method to search for black hole light echoes, which can provide direct evidence of photons circling black holes due to gravitational lensing. The technique allows for the measurement of black hole mass and spin, revolutionizing our understanding of black hole physics.
Astronomers observe low-mass supermassive black hole consuming matter at over 40 times the theoretical limit, providing new insights into rapidly growing black holes. The discovery reveals a possible mechanism for black holes to exceed their Eddington limit, sparking further investigation.
A recent study examines the internal nature of black holes and their implications for astrophysical observations. The research reveals that dynamic black holes are subject to significant instability over short timescales, leading to deviations from known models.
Researchers investigate universe expansion, Big Bang, black holes, and dark energy using a time-reversal model. They propose an explanation for the Big Bang and explore interior structure of black holes.
A team of researchers has discovered a new pattern in the high-energy jet of particles blasted by the supermassive black hole at the center of galaxy Centaurus A. The study found that the speed of one knot in the X-ray jet was at least 94% the speed of light, significantly faster than previously measured speeds using radio observations.
Researchers found evidence that black holes contain dark energy, which could explain its mysterious nature. The Dark Energy Spectroscopic Instrument provided data showing a correlation between the growth of black holes and the increase in dark energy density over time.
Astronomers have observed a black hole triple system for the first time, featuring a central black hole consuming a star and a distant companion that orbits every 70,000 years. The discovery raises questions about the origins of the black hole itself.
Researchers at the University of Minnesota developed a new technique to visualize 2D radio images in 3D, revealing distinct shapes and structures of galaxies and massive black holes. The technique uses Faraday rotation to estimate distances and analyze material interactions, potentially altering previous models.
Scientists at University of Tsukuba have discovered the first evidence of precession in ultraluminous accretion disks due to a black hole's spin. This phenomenon causes periodic fluctuations in luminosity and affects the direction of emitted radiation, shedding light on the influence of BH spin on cosmic phenomena.
Two UMD Astronomy space probes, AXIS and PRIMA, have advanced to the next round of consideration for a $1 billion NASA mission. AXIS will study X-rays from stars and black holes, while PRIMA will explore far-infrared radiation to understand galaxy formation.
The XRISM space mission is providing unprecedented insights into the galactic neighborhoods of supermassive black holes. The mission's data confirms decades-old speculation about these regions, revealing complex structures and unexpected clues about their environment.
Astronomers using NASA's Hubble Space Telescope discovered that the blowtorch-like jet from a supermassive black hole at the core of a huge galaxy causes stars to erupt along its trajectory. The finding suggests that there is something missing from our understanding of how black hole jets interact with their surroundings.
Astronomers have discovered the largest pair of black hole jets yet, stretching 23 million light-years and equivalent to 140 Milky Way galaxies. This finding suggests that these massive jet systems may have played a significant role in shaping galaxies in the early universe.
Physicists from Amsterdam and Copenhagen suggest that a careful analysis of merging black hole pairs' gravitational waves could reveal the existence of new ultralight bosons. This process, called superradiance, provides an opportunity to probe these particles, which may resolve puzzles in astrophysics and particle physics.
A team of researchers using NASA's Hubble Space Telescope found more black holes than previously reported in the early universe. The new result sheds light on how supermassive black holes were created and can help scientists understand galaxy evolution.
Researchers suggest that if most dark matter is composed of microscopic primordial black holes, they should pass through the solar system at least once per decade, introducing a wobble into Mars' orbit. This detection could lend support to the idea that primordial black holes are a primary source of dark matter.
Researchers used the James Webb Space Telescope to confirm that supermassive black holes can stop their host galaxies from forming new stars. The team observed a massive galaxy 'Pablo's Galaxy' in the early universe, finding that its supermassive black hole is expelling gas at high speeds, starving the galaxy of fuel.
Researchers have discovered a low-mass dark object, identified as a 3.6 solar mass black hole, located in the binary system G3425. The system's wide orbit and near-zero eccentricity make it difficult to explain through standard binary evolution processes.
Researchers, including WVU astronomer Emmanuel Fonseca, use radio pulsars to detect gravitational waves generated by massive objects. The study will merge data from the Green Bank Telescope and CHIME radio telescope to achieve full coverage of each wave, revealing information about phenomenon and objects in distant galaxies.
Astronomers have detected two closely spaced supermassive black holes in the nearby universe using NASA's Hubble and Chandra telescopes. The black holes are fueled by infalling gas and dust, causing them to shine brightly as active galactic nuclei (AGN).
UNLV astrophysicists found evidence suggesting the supermassive black hole at the center of our Milky Way galaxy, Sgr A*, is likely the result of a past cosmic merger. The study utilized data from the Event Horizon Telescope's 2022 observation of Sgr A* to investigate various growth models and demonstrated that the misaligned spin prop...
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 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.
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.
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.