The study provides the largest, most uniform spectroscopic follow-up of X-ray sources ever assembled, capturing tens of thousands of X-ray-emitting galaxy clusters. It reveals that rapidly growing giant black holes were surprisingly common in the early Universe and more 'hidden' black holes have been uncovered.
Black holes have been found to expel a substantial fraction of material consumed by them, creating a powerful cosmic digestive system. This discovery challenges previous assumptions that black holes are efficient eaters.
A team of researchers has discovered that supermassive black hole winds are 100 times more powerful than previously thought, carrying energy across 300,000 light-year distances. This finding demonstrates the explosive winds' impact on space beyond galaxies.
Astronomers at UNC-Chapel Hill have observed an extremely rare 'wandering' black hole located tens of thousands of light-years from the center of its galaxy. This discovery could reshape our understanding of how massive black holes move through the universe after galaxies collide.
Astronomers spot supermassive black hole on outskirts of galaxy, defying assumption that it resides in the center. The discovery uses AI program to identify characteristic light patterns from tidal disruption events.
A team of researchers found that primordial black holes triggering Type Ia supernovae can explain several observed characteristics, including chemical abundance trends. The study suggests a non-zero fraction of PBH-triggered SN Ia is necessary to explain the trend in Milky Way stars.
Researchers analyze the 'ringdown' phase of black hole collisions to test Einstein's theory of General Relativity and uncover secrets about these mysterious objects. Future observatories may reveal fresh evidence for new physics and challenge current models.
A team of astronomers used the James Webb Space Telescope to observe gaseous filaments connecting a galaxy's hot atmosphere to its central supermassive black hole. The observations showed that gas flowed along these filaments and poured into a spinning disk, which feeds the SMBH.
An international team of astronomers has directly measured the mass of an inactive supermassive black hole in the early Universe for the first time. The study found that the black hole is about 12 times more massive than expected from its host galaxy, suggesting that the central engine was already fully grown while the galaxy around it...
Researchers at Penn State have developed a new measure for entropy that is more closely tied to the black hole's physical properties of spin and energy. This allows them to extend the first and second laws of thermodynamics to dynamic black holes, enabling better understanding of their processes.
Astronomers have successfully observed the previously elusive 'event horizon' of a black hole at the moment of collision, allowing for new insights into quantum physics and general relativity. This breakthrough enables astrophysicists to study extreme gravity and phenomena like frame dragging near the event horizon.
Scientists have created a practical way to make ultra-black coatings that meet automotive standards, using a composite of carbon black pigment and carbon nanotubes. The resulting color is a deep jet black with excellent long-term stability, opening the door for high-end car models in darker hues.
Gravastars may form when a star collapses under its own mass, triggering the creation of a mini universe with dark energy. This equilibrium stabilizes the object, preventing it from becoming a black hole.
Topological methods have become a robust testing ground in black hole physics, revealing distinctive topological attributes of diverse black hole solutions. The review summarizes recent work toward universal topological classifications of black holes, organizing them according to their global topological number and winding numbers.
The discovery reveals a surprisingly mature black hole at just 850 million years old, with an accretion disk resembling a flat pancake. This challenges the understanding of how supermassive black holes can grow and mature in a short amount of cosmic time.
New simulations show that a magnetic field can decrease the distance between forming binary protostars, explaining observed characteristics of Milky Way binary star systems. This process also gives insights into massive black hole evolution and merger formation.
Researchers have discovered the most distant dormant black hole yet detected, located over 10 billion light years away. The black hole's mass is approximately 6 billion times that of the sun, providing unprecedented insights into black holes in the early universe.
A team of astronomers used JWST to detect the motion of stars near a galaxy's center affected by a dormant black hole's gravity. The findings suggest that densest galaxies were sites of rapid black hole growth early in cosmic history.
The LIGO-Virgo-KAGRA Collaboration has released a new catalog of gravitational-wave detections, revealing distinct sub-populations of merging black holes. These sub-populations are thought to arise from different formation pathways, including the collapse of gas clouds and hierarchical mergers between black holes.
Researchers from Vienna and Frankfurt have developed a mathematical formula describing critical collapse, where spacetime organizes into a regular structure that may form a black hole. This phenomenon is similar to the formation of ice crystals in liquid water.
Researchers developed a method to identify and catalogue quasinormal modes in black hole mergers, providing a systematic way to resolve ongoing debate. The technique detects fundamental 'notes', overtones, and nonlinear modes, enabling precise tests of general relativity.
Researchers at MIT and Europe create model predicting gravitational wave patterns from black holes in dark matter environments, detecting possible imprints on LVK data. The study offers a new way to screen gravitational-wave signals for hints of dark matter.
The most massive black holes detected by gravitational waves were formed through repeated and violent collision events in densely populated star clusters. The study identifies two distinct populations, with high-mass systems showing rapid spins and a signature consistent with cluster mergers.
A study by the University of Cambridge found that racism and socioeconomic stress can alter key physiological processes in the body during pregnancy, leading to higher rates of preeclampsia and preterm birth in black women. These changes are not due to genetic differences but rather persistent socio-environmental stressors.
Astronomers used TACC supercomputers to develop models of Little Red Dot formation, finding better agreement with Direct Collapse Black Hole theories. Researchers also analyzed JWST data using a 'genetic technique' to understand the history of these enigmatic cosmic objects.
Scientists have confirmed the immense power of black hole jets, measuring over 10,000 times the energy released by the Sun. The research used a radio telescope array spanning the Earth to capture images of the 'dancing jets', revealing their movement pattern and speed, approximately half the speed of light.
A study led by University of California, Riverside graduate student Yash Aggarwal suggests that dark matter decays could have seeded the direct collapse of galaxies into giant black holes. The research found that a window of dark matter masses between 24 and 27 electronvolts could produce conditions for black hole formation.
Researchers use high-resolution simulations to model the disruption of stars near supermassive black holes, uncovering details about their mass, spin, and orientation. The study sheds light on the formation of tidal disruption events (TDEs), which offer a unique way to observe these invisible objects.
A team of astrophysicists has developed a detection system that uses gravitational waves to map out the locations of merging black holes. The new protocol demonstrated by NANOGrav offers a vital way to explore and understand the universe, similar to how X-rays and radio waves did in earlier eras.
A new analysis across 45 years suggests that the disparity in firearm homicide deaths between Black and White Americans has grown, with many thousands of Black lives lost. The study found that Black males faced an eight to nine times higher likelihood of firearm homicide death than White males from 1988 to 2010.
A study using the James Webb Space Telescope found that supermassive black holes can suppress star growth not only in their host galaxy but also in neighboring galaxies within a million-light-year radius. This discovery reveals a larger impact of quasars on galaxy evolution, contradicting previous assumptions.
Researchers discovered a star in the Andromeda Galaxy that vanished without going supernova, instead collapsing directly into a black hole. The team's analysis revealed the process of stellar collapse and provided evidence for convection's role in shaping a black hole's outer layers.
Researchers propose a new way to observe tightly bound supermassive black hole binaries using gravitational lensing and starlight. The method could reveal key properties of the underlying black hole binary, including masses and orbital evolution.
A team of physicists at UMass Amherst has proposed a new model for black holes, the 'dark charge' model, which explains high-energy neutrinos and solves cosmic mysteries. The model suggests that quasi-extremal primordial black holes, with a 'dark charge,' could be the missing link in explaining the universe's fundamental nature.
Researchers at Maynooth University found that chaotic conditions in the early Universe triggered the rapid growth of smaller black holes into super-massive behemoths. This breakthrough resolves a long-standing puzzle, suggesting that 'garden variety' stellar mass black holes can grow at extreme rates.
A team of astronomers has discovered a supermassive black hole with extreme growth rates, contradicting current models. The black hole is emitting bright X-rays and radio waves, hinting at unknown physical mechanisms. This finding provides a rare glimpse into time-variable black hole growth in the early Universe.
Researchers from the University of Copenhagen have explained the mysterious 'red dots' seen in James Webb Space Telescope images as young black holes. The discovery provides insight into how the universe's first black holes were born and sheds light on their early development.
Researchers at Kyoto University observe a peculiar supernova explosion, SN 2022esa, which reveals the birth of a black hole binary. The study provides new direction for understanding massive star evolution and black hole formation.
Astronomers have discovered that black holes don't just consume matter — they manage it. Researchers found that black hole binary systems switch between powerful jets and energetic winds—never producing both simultaneously—and both types of outflows carry away comparable amounts of mass and energy.
Researchers will use revolutionary technology to transform understanding of extreme environments, revealing how black holes behave and evolve. The project aims to deliver dynamic gravitational tomography, creating 3D movies showing plasma flows around black holes.
Scientists have found that active galactic nuclei are two to six times more common in merging galaxies than non-merging counterparts. Galaxy mergers were most strongly associated with bright, dust-cloaked supermassive black holes linked to rapid growth.
New research reveals the structure of matter surrounding supermassive black holes has changed over cosmic time, challenging a fundamental assumption about their behavior. The study combines new X-ray observations to explore the relation between X-ray and ultraviolet light intensity of an unprecedentedly large sample of quasars.
Astronomers discover galaxy Virgil with dual personality – ordinary in visible light but harboring massive black hole. JWST observations reveal hidden nature of Virgil, challenging current models of black hole formation.
Researchers from POSTECH found that aluminum reduces internal structural distortion in cathodes, preventing oxygen holes and shortening battery life. By adding a small amount of aluminum, the team extends battery lifespan while improving energy density.
Researchers at the University of Amsterdam developed a new model to track dark matter's effect on black holes' gravitational waves. The study focuses on extreme mass-ratio inspirals, where a smaller object orbits a massive black hole, emitting gravitational waves that can reveal dark matter's distribution around black holes.
Groundbreaking simulations reveal how black holes create dazzling light shows by material zipping around them. The results could help explain hundreds of faintly luminous objects spotted in the early universe.
Scientists use XL-Calibur telescope to measure polarization of light around Cygnus X-1 black hole, gaining insights into matter's fall and energy release. The observations will be used to test computer simulations and shed light on black hole physics.
A research team at the Purple Mountain Observatory confirms Stephen Hawking's prediction that a black hole's horizon area cannot shrink when two black holes merge. The analysis of GW230814 shows strong support for the black-hole area law, validating general relativity in extreme astrophysical environments.
Astrophysicists used simulations to uncover the missing piece that previous studies had overlooked: magnetic fields. They found that strong magnetic fields can slow down a black hole and carry away some of its stellar mass, creating lighter and more slowly spinning black holes.
Physicists compare black hole shadow images to alternative theories of gravity, showing differences in extreme cosmic objects. High-resolution measurements could test Einstein's theory and confirm or refute exotic possibilities.
Researchers developed a simulation method to model rotating regular black holes, which naturally show time-varying patterns of light and shadow. This breakthrough enables faster exploration of different black hole configurations without requiring delicate tuning.
The LIGO-Virgo-KAGRA Collaboration reports the detection of two gravitational wave events with unusual black hole spins. The observed black holes have size differentials and spin orientations that suggest they were formed through earlier mergers, providing evidence for hierarchical mergers in dense cosmic environments.
Two distant black hole mergers, measured one month apart in 2024, provide insights into the nature and evolution of deep-space collisions. The mergers validate fundamental laws of physics predicted by Einstein and furthers the search for new elementary particles with potential to extract energy from black holes.
A team of astronomers has discovered the first tidal disruption event producing bright radio emission outside the center of a galaxy. The event revealed the fastest-evolving radio emission ever observed from a black-hole-driven stellar disruption, suggesting delayed and complex processes in the aftermath of the disruption.
Astronomers have captured the first-ever radio image of two black holes orbiting each other at the centre of a quasar called OJ287. The observation confirms the existence of black hole pairs and provides insight into their orbital motion.
Researchers at Goethe University Frankfurt used complex simulations to study the origin of powerful jets emitted by black holes. They discovered that magnetic reconnection is involved in extracting rotational energy and powering these jets.
Recent detection of a record-setting neutrino may be the first evidence of Hawking radiation from a primordial black hole. If confirmed, it would indicate that PBHs make up most of dark matter in the universe.
Researchers used the James Webb Space Telescope to study 12 quasars from 12.9 billion years ago, revealing mature galaxies with active supermassive black holes. This challenges previous research suggesting black hole activity suppresses galaxy growth, instead showing a complex relationship between the two.
The latest gravitational wave observation reveals two black holes with masses 30 times that of the Sun, shattering previous expectations. This discovery confirms a longstanding theory by Stephen Hawking and opens new possibilities for testing our understanding of gravity.
The Event Horizon Telescope collaboration unveils dynamic environment with changing polarization patterns near M87*'s supermassive black hole. The new images show how the environment around the black hole may be changing more than previously thought.