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.
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.
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 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.
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...
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.
A team of researchers observed two galaxies merging 12.8 billion years ago, forming a massive object that triggered rapid growth of supermassive black holes and starburst activity. The discovery provides new insights into galaxy/black hole formation in the early Universe.
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.
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 reveals that Black mental health professionals experience high rates of burnout and racial trauma, with higher levels of social support and resilient coping predicting lower levels of these negative impacts. The researchers suggest recruiting more Black persons into the mental health professions as a way to build trust with...
Researchers at UBC created a new super-black material using plasma etching, absorbing up to 99% of visible light. The material, called Nxylon, has potential applications in astronomy, solar cells, and luxury consumer goods.
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 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 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 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.
Scientists have discovered tiny, bright objects in the early universe that are packed with hundreds of millions of years old stars, defying conventional thinking about galaxy evolution. The objects also harbor surprisingly large supermassive black holes, estimated to be 100 to 1,000 times more massive than our Milky Way's black hole.
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 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.
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.
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 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.
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 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.
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 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 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 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 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
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.
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 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.
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 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 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.
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.
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.
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 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 new study found that Black male elementary school students are less likely to be identified for special education services when matched with Black teachers. This relationship is strongest among students from economically disadvantaged backgrounds. The researchers suggest that access to Black teachers may lead to more nuanced assessme...
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.
The James Webb Space Telescope has discovered a 2-million-solar-mass supermassive black hole at the center of the galaxy GN-z11, which is one of the youngest and most distant galaxies ever observed. The team also found evidence of ionized chemical elements and a powerful wind expelled by the galaxy.
The discovery of J0529-4351 reveals the most luminous object in the known Universe, with a mass of 17 billion Suns and an accretion disc seven light-years in diameter. The quasar's brightness surpasses that of 500 trillion Suns, providing valuable insights into supermassive black holes and their role in shaping the early Universe.
Physicists at Goethe University Frankfurt have proposed a new solution to Einstein's field equations, describing the existence of 'nestars' - gravastars inside another gravastar. The 'nestar' has a thicker shell than previous theories, making it easier to imagine its existence.
A new study found that black holes existed at the dawn of time and played a crucial role in galaxy formation. The research, using James Webb Space Telescope data, challenges classical understanding of black hole formation and suggests they may have dramatically accelerated star birth in the first 50 million years of the universe.
A team of MIT scientists has detected 18 new tidal disruption events (TDEs) using infrared observations, more than doubling the catalog of known TDEs. The discoveries reveal that these star-shredding black holes occur in a range of galaxies across the entire sky, not just dusty galaxies.
Researchers found an unknown object orbiting a rapidly spinning millisecond pulsar, weighing more than the heaviest neutron stars and less than the lightest black holes. The discovery was made using the MeerKAT Radio Telescope and could reveal new insights into black holes and neutron stars.
Researchers detected a compact object with a mass between 2.09 and 2.71 solar masses, which is at the lower edge of the mass gap between neutron stars and black holes. The discovery has fascinating implications for understanding extremely dense nuclear matter and supernova explosions.
Researchers discovered a massive black hole at the center of galaxy GN-z11, which dates back 13 billion years and challenges traditional theories on black hole formation. The ancient black hole is 'eating' its host galaxy, suggesting alternative formation mechanisms.
Researchers unveil previously unknown type of shockwave within TDEs, confirming that shock dissipation powers the brightest phases. The study paves the way for precise measurements of crucial black hole properties and testing Einstein's predictions in extreme environments.
Researchers analyze tidal disruption events (TDEs) to estimate the properties of supermassive black holes and stars. The CN22 model, proposed by Syracuse University researchers, provides a new way forward for understanding TDEs and their implications for galaxy evolution.
Researchers have discovered a novel galactic 'fossil' in the spiral galaxy NGC 4945, which sheds light on the evolution of galaxies. The X-rays outline giant clouds of cold gas that were blasted through the galaxy after its central supermassive black hole erupted 5 million years ago.
Research highlights the role of racism in producing mental health disparities among Black Americans, calling for community-driven action to reduce inequitable care. The study's findings emphasize the need to address systemic racism as a root cause of poor mental health outcomes.
A recent study published by Columbia University Mailman School of Public Health found that suicide rates among Black women rose from 2% in 1999 to 3.4% in 2020. The highest rates were observed in the West region, with a significant increase in deaths among young Black females aged 15-24.