Astronomers have confirmed the first known 'middleweight' black hole, HLX-1, using observations with CSIRO's Australia Telescope Compact Array. The black hole is estimated to be around 20,000 to 90,000 times the mass of the Sun and lies in a galaxy called ESO 243-49.
New study finds that most massive black-hole growth in the early universe was fueled by small, long-term events rather than dramatic short-term major mergers. Quasars thrive in normal-looking spiral galaxies, triggered by black holes snacking on gas or small satellite galaxies.
A new study using Chandra data reveals two galaxies with supermassive black holes growing at a rate outpacing their host galaxies. The findings suggest that dark matter halos and black holes are linked in the growth of these galaxies, contradicting previous assumptions.
Astronomers use XMM-Newton data to detect X-ray 'echoes' from a distant galaxy, revealing a new way to study supersized black holes and their accretion disks. The echoes, which lag behind AGN flares by up to 30 minutes, provide insights into the environment around these massive black holes.
Astronomers using Herschel Space Observatory data show that massive black holes at galaxy centers influence star formation rates. Galaxies with powerful black holes form stars at a thousand times the rate of Milky Way, but fastest-growing black holes shut off star formation in surrounding galaxies.
Astronomers have discovered a supermassive black hole eating a star's core, revealing that these massive objects snack infrequently. The discovery showcases the power of the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) in detecting transient phenomena.
Astronomers at Queen's University Belfast have gathered direct evidence of a supermassive black hole shredding a star that wandered too close. The discovery provides insights into the harsh environment around black holes and the types of stars swirling around them.
A team of astronomers led by Suvi Gezari has identified a star rich in helium gas that was ripped apart by the gravitational forces of a supermassive black hole. The star's remains were seen falling into the black hole, while the rest was ejected at high speeds, providing insights into the harsh environment around black holes.
Astronomers have gathered direct evidence of a supermassive black hole ripping apart a star that strayed too close. The team identified the victim as a helium-rich star in a galaxy 2.7 billion light-years away, providing insights into the harsh environment around black holes.
New research reveals that supermassive black holes can double in mass by ripping apart double-star systems and swallowing one of the stars. This process is thought to be the dominant method for growing these massive objects.
A University of Utah astrophysicist has proposed that supermassive black holes in galaxy centers grow by consuming single stars from wandering binary pairs. The study found that this process is an efficient way to bring stars close to black holes, outperforming gas clouds as a growth mechanism.
Researchers suggest that highly massive black holes began growing rapidly in the early universe due to chaotic gas flows. By simulating gas discs orbiting a black hole at different angles, they found that collisions between these discs can lead to a significant increase in the black hole's mass.
Astronomers have identified a new type of black-hole-driven outflow that explains the link between galaxy mass and star velocity. Ultra-fast outflows are common features of black-hole-powered galaxies, influencing galactic shape and star formation.
Astronomers have discovered a young cluster of blue stars surrounding an intermediate-mass black hole in a cannibal galaxy. The star cluster is thought to be less than 200 million years old and may be the remnant of a dwarf galaxy that was swallowed by the larger galaxy.
Researchers found a cluster of young, blue stars encircling the first intermediate-mass black hole ever discovered in a dwarf galaxy. The presence of this star cluster suggests that the black hole was once at the core of the now-disintegrated dwarf galaxy.
Researchers Lorette I. Winters and Paul C. Winters found that while black teens are twice as likely to be pregnant, rates for minor whites have increased and surpassed those of poor black minors. In better economies, the difference between black and white teen pregnancies nearly disappears.
Researchers used the VLBA and RXTE satellite to study a 2009 outburst from a black hole system. The collaboration gathered detailed images of
Astronomers identify smallest-known black hole using data from NASA's Rossi X-ray Timing Explorer (RXTE). The 'heartbeat' pattern, similar to an electrocardiogram, suggests a minuscule black hole weighing less than three times the sun's mass.
Astronomers are observing a unique opportunity to study how a black hole gulps gas, dust, and stars as it grows bigger. The gas cloud is currently 550 Kelvin or 280 degrees Celsius and will be ripped apart by the tidal forces around the black hole.
Researchers recreated universe's first billion years using largest cosmological simulation to date. Thin streams of cold gas flowed into early black holes, causing rapid growth and challenging astrophysical theory.
Researchers have discovered two massive black holes, each with a mass equivalent to 10 billion suns, in nearby galaxies. These 'sleeping giants' are thought to be remnants of quasars that powered the early universe.
Astronomers have found two massive black holes, each with a mass of 10 billion suns, in nearby galaxies. These 'sleeping giants' are thought to be remnants of quasars that powered matter into black holes in the early universe.
Astronomers have discovered two gigantic black holes with masses about 10 billion times the mass of our sun, surpassing previous measurements by more than 50 per cent. The discovery suggests that these massive black holes may be the dormant remains of extremely luminous quasars from billions of years ago.
Astronomers have discovered the largest black holes to date, two monsters with masses equivalent to 10 billion suns threatening to consume anything within a region five times the size of our solar system. These black holes are located in giant elliptical galaxies more than 300 million light years from Earth.
Researchers at Princeton University discovered that blocking small holes in a metal film enhances light transmission by up to 70%. The technique challenges common assumptions in optics and could have significant implications for ultrasensitive detectors. Further investigation is needed to apply this finding to various applications.
A new theory suggests that high-speed collisions between planets and asteroids near supermassive black holes create microscopic dust clouds. This process blocks harmful radiation, creating a more hospitable environment for life in the galaxy's central region.
Researchers at Princeton University and NYU have developed a method to detect the collision of stars with primordial black holes, which are believed to be a source of dark matter. The new technique uses existing solar observation methods to identify subtle vibrations in a star's surface caused by a passing black hole.
Astronomers have found supermassive black holes in small distant galaxies, suggesting that central black holes formed early in galaxy evolution. The study used the Hubble Space Telescope to probe the universe and identifies a connection between star formation and active galactic nuclei.
New research by University of York scientists proposes that quantum mechanics could be the key to understanding how black holes work, potentially allowing information to escape. The study's findings suggest a possible breakthrough in our understanding of gravity and its relationship with space and time.
A new study by Brigham Young University researchers reveals that black holes' movement, including lateral motion and spin, fuels massive jets of energy known as quasars. The study confirms a long-held theory while introducing a new component: that black holes' lateral movement also powers these jets.
A UBC study found that over 75% of tree holes used by birds and mammals worldwide are created by damage and decay, emphasizing the importance of preserving older, larger trees. This contrasts with North American forests where woodpeckers dominate hole creation.
Astronomers used Chandra X-ray Observatory to discover massive black holes growing more aggressively than thought, in tandem with host galaxies. The study suggests that these young black holes are related to quasars and could have played a role in clearing cosmic fog.
A Rutgers University astrophysicist's research team has discovered that supermassive black holes were surprisingly common in the early universe, growing at a rate similar to their host galaxies. The findings suggest there are at least 30 million black holes in the early universe, far exceeding previous estimates.
Researchers detected 13 billion light-year-old galaxies with hidden central black holes using the Chandra X-Ray Observatory. The findings suggest a symbiotic relationship between black holes and galaxies dating back to the Big Bang.
Astronomers have discovered a second supersized black hole at the heart of the unusual nearby galaxy Markarian 739. The study used NASA's Swift satellite and Chandra X-ray Observatory to find the hidden AGN, which is one of the nearest and clearest cases of a binary AGN. The dual black holes are separated by only 11,000 light-years.
Researchers analyzed X-ray data from space telescopes to understand the relationship between a black hole's accretion rate and ionization state of its surrounding disk. The study found a linear dependence on the rate of accretion, contradicting theoretical predictions.
New research from Carnegie Institution scientists found that black carbon aerosols have a greater effect on surface warming when emitted near the land and ocean surface. However, as altitude increases, surface warming decreases, while cooling occurs in the stratosphere.
Researchers have developed conceptual tools to visualize warped space-time, discovering vortex lines and tendex lines that describe gravitational forces. These tools allow for a better understanding of black holes, gravity, and the universe, enabling predictions of gravitational waves and solving long-standing mysteries.
A newly merged black hole can be detected by observing the tidal disruption of surrounding stars, which will provide accurate distances and precise sky coordinates. This could lead to a better understanding of dark energy and Einstein's general theory of relativity.
Researchers at the University of Illinois have developed a model for interacting electrons in unconventional superconductors by mimicking the behavior of charged black holes. This work resolves the Mott problem, which has puzzled physicists for decades, and sheds light on the origin of superconductivity in copper oxide materials.
Astronomers using data from NASA's Swift satellite have found a largely unseen population of black-hole-powered galaxies, accounting for at least one-fifth of all active galaxies. The discoveries were made by analyzing X-ray emissions and finding that these heavily shrouded black holes are extremely faint and difficult to detect.
A UBC team designs an experiment featuring a flowing water trough to test Stephen Hawking's 35-year-old theory on black holes. The study creates a 'white hole' simulation, generating thermal radiation analogous to photon pairs in Hawking's theory.
Researchers have identified 16 binary systems consisting of supermassive black holes that are hundreds to thousands closer together than previously observed. This discovery sheds new light on how these cosmic behemoths and their host galaxies merge, a crucial aspect of understanding the universe's evolution.
Researchers use NASA X-ray satellites to monitor a binary system with a massive black hole, discovering its rhythmic cycles, which drive the black hole's intake and growth. The study reveals the importance of radiation in preventing the black hole from ingesting too much material.
Astronomers have discovered a supermassive black hole in a nearby dwarf galaxy, Henize 2-10, which is thought to be one of the first galaxies to form in the early Universe. The finding suggests that supermassive black holes formed before their surrounding galaxies, challenging current understanding of galaxy evolution.
Scientists have found a miniaturized galaxy with a single massive black hole, which produces radio jets that are much more efficient than previously thought. The discovery was made using CSIRO's Compact Array radio telescope and reveals that black holes can be both more powerful and more efficient.
Researchers have simulated the merger of two black holes with vastly different sizes, achieving a 100:1 mass ratio for the first time. This breakthrough allows for more realistic astrophysical scenarios and prediction of observational effects.
Researchers found compelling evidence for the birth of a stellar mass black hole in the type IIL supernova SN 1979C. The study proposes that the late time glow of the supernova is consistent with a black hole accreting material from either a fallback disk or a binary companion.
Artificial black holes made with metamaterials can trap EM waves, preventing them from escaping like a black hole traps light. This technology could be used to measure how light is absorbed when passing through the material and enable the harvesting of light for solar cells.
Researchers are tracing electromagnetic signatures back to the impact of colliding black holes to detect them with ordinary visible light. They're creating a detailed blueprint for future scientists and simulating mergers to aid in gravitational wave discovery, proving general relativity.
Scientists have successfully created an optical analogue of Hawking radiation using a laser beam and glass target. This experiment confirms the theoretical predictions of Hawking radiation, which is emitted by black holes but difficult to detect.
Astronomers have confirmed that Hanny's Voorwerp is a large cloud of glowing gas illuminated by the light from a quasar, which has since burned out. The team found that the quasar lighting up the gas took up to 70,000 years to travel through space.
Researcher Stelios Kazantzidis uses Ohio Supercomputer Center's powerful systems to model galaxy mergers and simulate the formation of massive black holes. His work has potential to shed light on astrophysical phenomena and verify general relativity.
A recent study found that black patients are less likely to experience end-of-life care that accurately reflects their preferences compared to white patients. Black patients with more education were marginally more likely to report having end-of-life discussions, but still received more aggressive care regardless of their values.
Astronomers discovered that the first super-massive black holes formed when galaxies collided and merged together, contrary to hierarchical structure formation. These simulations reveal details of the merged galaxies on a scale of less than a light year.
Astronomers discovered a giant black hole with its spin axis pointing in a different direction after two collisions with smaller galaxies. The observations suggest that the black hole was jerked around twice, creating cavities and radio jets.
Astronomers have discovered the most powerful pair of jets from a stellar black hole, blowing a huge bubble of hot gas. The discovery reveals that some black holes can release at least as much energy in the form of collimated jets as radiation, leading to an expansion of the surrounding interstellar gas.
Data from NASA's Swift satellite have solved a decades-long mystery about black holes emitting vast amounts of energy. The survey confirms that galaxies colliding trigger the 'lighting up' of supermassive black holes.
The Andromeda Galaxy's supermassive black hole, M31*, is surprisingly quiet and faint in X-ray light, deviating from expectations. A decade-long study by Chandra reveals that the black hole underwent a significant outburst of X-rays in 2006.
A team of researchers discovered that a supermassive black hole at the center of the most massive local galaxy, M87, is displaced from its expected location. The finding suggests that supermassive black holes may be commonly offset from their host galaxy centers due to previous mergers or interactions with jets.