Articles tagged with Black Holes
The Einstein Probe mission aims to probe X-ray transient sources and explosive astrophysical phenomena, contributing significantly to astronomical research. The mission's sophisticated observational instruments will enhance the detection of sudden X-ray transients and monitor variability in known celestial sources.
The Dark Energy Spectroscopic Instrument (DESI) has discovered a treasure trove of actively feeding black holes in small galaxies, revealing surprisingly few are of intermediate mass. The team identified 300 new intermediate-mass black hole candidates and 2500 active black holes in dwarf galaxies.
Researchers used advanced computer simulations to explore how magnetic fields interact with black holes, revealing that between 10% and 70% of extracted energy is channeled into jets. The findings could redefine our understanding of black hole role in shaping galaxies.
A Northwestern University-led team observed Sagittarius A*, the Milky Way's supermassive black hole, exhibiting a constant stream of flares with no periods of rest. The level of activity varies widely, from short interludes to long stretches, and appears to be random.
A new optical technology developed at UC Riverside enables gravitational-wave detectors to reach extreme laser powers, overcoming limitations that hinder the detection of cosmic phenomena. This breakthrough is expected to significantly expand our view of the universe, particularly in the earliest stages of its history.
A University of Barcelona team has described the creation of regular black holes from gravitational effects without exotic matter. The study simplifies conditions necessary for regular black holes and provides a mechanism to resolve singularities in general relativity.
Astronomers have discovered a key ingredient within the Phoenix cluster that explains its mysterious starburst, using NASA's James Webb Space Telescope to observe the cluster. The detection of warm gas confirms that the Phoenix cluster is actively cooling and able to generate a huge amount of stellar fuel on its own.
A research team has found that dark matter makes up about 60% of the mass of two galaxies at a redshift of 6, shedding light on its role in galaxy evolution. This discovery offers new insights into the intricate relationship between dark matter and supermassive black holes.
Scientists have discovered that even low-mass microquasars can accelerate particles to high energies, producing gamma-ray signals. This finding challenges the long-held belief that only high-mass systems are capable of particle acceleration.
The EHT Collaboration unveils a new analysis of the supermassive black hole at the heart of galaxy M87, combining observations from 2017 and 2018. The study confirms the presence of a luminous ring with a shifted brightest region, indicating turbulent accretion disk dynamics.
Researchers use Large Binocular Telescope Interferometer to observe active galactic nucleus, revealing dusty outflowing wind and radio jet feedback. The study provides new insights into AGN's interaction with host galaxies.
Priyamvada Natarajan has made groundbreaking contributions to understanding dark matter substructure, black hole formation, and their impact on the universe. Her work has laid the foundation for modeling black hole populations across the lifetime of the universe.
Astronomers have observed a phenomenon where a supermassive black hole forms plasma jets in real-time, marking the first-ever observation of this process. The discovery provides new insights into how black holes interact with their host galaxies and could help scientists understand the evolution of the universe.
Radio data reveals jets of ionized gas extending from either side of the black hole, with a total size of about half a light-year. The observation suggests that the launch of a black hole jet has never been observed before in real time, providing critical clues to why only a fraction of monster black holes produce powerful plasma jets.
Astronomers have observed the same supermassive black hole exhibiting unprecedented behavior, with X-ray flashes increasing in frequency over two years. The source of these flashes is believed to be a spinning white dwarf core orbiting around the black hole's edge.
Astronomers have discovered a rare spiral-shaped galaxy hosting a young jet, challenging the conventional wisdom on quasar formation. The galaxy, J0742+2704, features a supermassive black hole and brilliant hot disks of swirling gas that can blast off jets of material.
Researchers suggest that gravitational collapse in the early universe could give rise to incredibly dense point-like objects, namely visible or naked singularities. This ultra-strong gravity condition provides a unique opportunity to probe new fundamental aspects of physics, including quantum gravity. The possibility of PNaSs accountin...
Astronomers at MIT used a novel technique to determine the precise location of a fast radio burst, finding it likely originated from the magnetosphere around a rotating neutron star. The study provides conclusive evidence that fast radio bursts can emerge from this highly magnetic environment.
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.
Astronomers detect a massive black hole in the early universe that is lying dormant due to low accretion rates, sparking debate about its formation and growth. The discovery challenges standard models of black hole development and suggests that these monsters may be born big or go through periods of hyperactivity.
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.
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.
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.
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 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.
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).
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.
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.
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.
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.