Articles tagged with Quasars
A team of scientists has discovered the most distant quasar ever observed, J0313-1806, which is also the earliest known quasar in the universe. The quasar is powered by a supermassive black hole weighing over 1.6 billion times the mass of the Sun.
Astronomers have observed a luminous quasar 13.03 billion light-years from Earth, providing insight into the formation of massive galaxies in the early universe. The quasar hosts a supermassive black hole equivalent to 1.6 billion suns and shows evidence of an outflowing wind, challenging current models of black hole formation.
The most distant quasar known has been discovered, powered by the earliest known supermassive black hole weighing over 1.6 billion times the mass of the Sun. This fully formed distant quasar is also the earliest yet discovered, providing insight into massive galaxy formation in the early Universe.
Astronomers have identified the most distant quasar known, powered by a supermassive black hole weighing over 1.6 billion times the mass of the Sun. The discovery provides insight into the formation of massive galaxies in the early universe and challenges theories of black hole growth.
Astronomers have discovered the most distant quasar yet found, J0313-1806, which is 13 billion light-years away and powered by a supermassive black hole. The discovery provides valuable insights into how massive galaxies and their supermassive black holes formed in the early Universe.
Researchers have developed a new instrument that can analyze the chemical signatures of distant quasars, providing insight into the origins of metals like iron. By studying these ancient galactic cores, scientists hope to refine their understanding of the early universe and its role in forming the elements necessary for life.
A massive spinning black hole powers a plasma jet through magnetic reconnection, releasing energy in 'mini-jets' that produce high-energy gamma radiation. This phenomenon explains how the energy reaches the jet's core from the black hole and ultimately originates from its rotation.
The Q3D team will study three bright quasars to measure the activity that comes from accreting material onto supermassive black holes, revealing how it affects host galaxies. The study aims to understand the relationship between supermassive black holes and their host galaxies by analyzing gas motions in nearby and distant galaxies.
Scientists have detected a mysterious gamma-ray heartbeat from a cosmic gas cloud in the constellation Aquila, powered by a neighbouring precessing black hole. The research team analysed over ten years of data from NASA's Fermi gamma-ray space telescope, revealing a consistent period between the cloud's emission and the black hole's jets.
The discovery of Po?niua??ena, the second-most distant quasar, sheds light on the formation of massive black holes and galaxies in the young universe. The quasar's existence challenges current theories, requiring a new mechanism to explain its massive size formed so early in the universe's history.
Astronomers have discovered the second-most distant quasar, Pōniuā`ena, powered by a supermassive black hole 1.5 billion times more massive than our Sun. The discovery challenges current theories of how these massive black holes formed and grew in the young universe.
Astronomers have discovered the second most distant quasar, Pōniuāʻena, containing a monster black hole twice the mass of other quasars at the same epoch. The discovery presents significant challenges to current theories on supermassive black hole formation and growth in the early universe.
A team of researchers has discovered that quasar jets change from parabolic to conical shapes at a distance from the black hole, similar to flared jeans. This finding challenges the long-held assumption of narrow cone-shaped jets and provides new insights into black hole acceleration.
A new study has provided precise tests of dark energy and cosmic expansion by analyzing the distribution of galaxies in the Universe. The research uses a combination of cosmic voids and baryon acoustic oscillations, yielding more accurate results than previous methods.
Scientists from UNSW Sydney report new measurements of light emitted from a quasar 13 billion light years away, reaffirming past studies on tiny variations in the fine structure constant. The findings suggest that one of nature's laws may not be constant, challenging the Grand Unifying Theory.
A team of astronomers led by Nahum Arav has discovered the most energetic outflows ever witnessed in the universe, which tear across interstellar space like cosmic tsunamis. These quasar outflows accelerate material to breathtaking velocities, carrying hundreds of solar masses of material each year and pushing galaxies' formation forward.
Researchers combined data from radio and optical telescopes to determine the origins and nature of quasar light. By measuring the polarization, they can tell which part of radiation came from the jet and determine its direction.
Astronomers used ESO's VLT to observe gas halos around early galaxies, providing fuel for supermassive black holes. The study found 12 quasars surrounded by enormous gas reservoirs, sustaining both black hole growth and star formation.
A team of astronomers observed six LINER galaxies transforming into quasars in a matter of months, discovering an entirely new type of black hole activity. The sudden transitions challenge our current understanding of galactic evolution and suggest that the theory is all wrong.
A team of researchers has observed the rapid fuel consumption of eight quasars, revealing the role of strong gravity in feeding massive black holes. The study's findings provide new insights into the behavior of supermassive black holes at the center of quasars.
Researchers at Durham University have spotted a brief transition phase in the development of quasars, challenging conventional views on red quasar color. The team believes this phase is caused by a violent ejection of energy from supermassive black holes, blowing away dust and gas to reveal blue quasars.
Astrophysicist Allison Kirkpatrick announces the discovery of cold quasars, galaxies with abundant cold gas that can still form new stars despite having a quasar at the center. This breakthrough finding overturns assumptions about galaxy maturation and may represent a previously unknown phase in every galaxy's lifecycle.
Researchers from the Moscow Institute of Physics and Technology found that quasars' positions fluctuate due to complex radiation effects, contradicting their long-held assumption of stability. The study's findings could improve astrometry techniques for accurate navigation systems.
A team of astronomers has discovered 83 quasars powered by supermassive black holes in the early Universe, increasing the number of known black holes at that epoch. The survey reveals the average spacing between supermassive black holes is a billion light-years, providing insights into their origin.
Researchers have discovered 83 supermassive black holes powering quasars 13 billion years ago, shedding light on their formation and evolution. This finding increases the number of known black holes at that epoch and provides new insights into their impact on the early universe's gas state.
A team of UCLA astronomers has developed a new method to measure the universe's expansion rate, using double-image quasars to produce an estimate of the Hubble constant. The study's findings suggest that the universe is expanding at a speed of about 72.5 kilometers per second per megaparsec.
Astronomers have detected a distant quasar from the early universe using Gemini Observatory, which provides critical insights into the formation of galaxies. The quasar is fueled by a supermassive black hole at its center, with mass 700 million times that of our Sun.
Researchers have discovered a bright quasar at a time when the universe was less than one billion years old, providing a rare opportunity to study black holes in the early universe. The quasar is fueled by a supermassive black hole and emits light equivalent to 600 trillion suns.
The study reveals that gas clouds rapidly moving around a central black hole form the very heart of this quasar. The research is the first detailed observation outside of our galaxy of gas clouds whirling around a central black hole.
Astronomers found a dust-obscured quasar formed from a galaxy merger, revealing how mergers can power quasars and obscure them with dust. The study used ALMA to analyze the quasar WISE J224607.57?052635.0 and its companion galaxies.
A team of scientists has detected highly energetic radiation from a microquasar, shedding light on extreme particle acceleration and jet physics. The findings improve our understanding of particle acceleration in jets of microquasars, offering insights into more extreme events at the centers of distant galaxies.
The HAWC observatory has identified spectacular details of the processes responsible for high-energy radiation in microquasar SS 433. This is a rare opportunity to observe the object in detail, as its jets are directed almost perpendicular to our line of sight.
Scientists have detected gamma rays coming from the outermost regions of SS 433, a black hole system in our galaxy. The High-Altitude Water Cherenkov Gamma-Ray Observatory (HAWC) has observed these high-energy signals, which suggest electron acceleration and collisions at the ends of microquasar jets produced them.
Researchers have found a new source of high-energy photons in the cosmos: a microquasar located in our galaxy. The gamma rays emitted by this system are among the most energetic ever observed and were detected using the High-Altitude Water Cherenkov Gamma-Ray Observatory.
The International Astronomical Union has adopted the new ICRF-3 reference frame with global validity since January 2019. It provides improved precision for positioning systems like GPS and space probes, enabling accurate navigation in the sky and on Earth's surface.
Researchers used light from distant quasars to determine measurements on pairs of entangled photons, finding correlations that exceeded Bell's original limit for a classically based mechanism. This strengthens the case for quantum entanglement and restricts options for the freedom-of-choice loophole.
The discovery reveals hundreds of individual galaxies in the cluster, which surrounds an extremely active supermassive black hole at the center. The quasar's light has obscured these galaxies, making them invisible to astronomers.
Scientists used the Very Long Baseline Array to capture a quasar nearly 13 billion light-years away, revealing details about its composition and potential jet expansion. The bright object is thought to be one of the brightest radio emitters at an early age, offering insights into the first galaxies in the universe.
Astronomers have found a quasar with the brightest radio emission ever observed in the early universe, providing unprecedented insight into the universe's youth. The discovery allows researchers to study the early galaxy formation process, which is crucial for understanding the evolution of the cosmos.
A team of researchers has discovered the last reservoir of ordinary matter hiding in the universe, located in the space between galaxies. The finding is significant as it fills in the gap of about 30% of missing baryons predicted by theorists.
A team of astronomers has identified at least six strong candidates for dark galaxies by leveraging the ultraviolet light from quasars to 'illuminate' gas in the intergalactic medium. The discovery could help fill a gap in our understanding of galaxy evolution, as it provides direct evidence for the existence of dark galaxies.
Researchers have identified nearly 200 regions of galaxies gathering together to form protoclusters in the early Universe 12 billion years ago. The discovery challenges the long-held assumption that quasars are created by galaxy mergers, suggesting alternative mechanisms for quasar activity.
The Mayall telescope is undergoing a major overhaul to install the Dark Energy Spectroscopic Instrument (DESI), which will measure the spectra of 5000 astronomical objects simultaneously. The instrument will allow DESI to map out about one-third of the sky and survey 30 million galaxies and quasars over a five-year period.
Statistical analysis suggests that supermassive black hole spin plays a role in generating high-speed jets and powerful radio waves. Nearly 8000 quasars were analyzed, with O III oxygen emissions found to be stronger in radio loud quasars, implying spin's importance.
Astronomers have detected an extremely distant supermassive black hole with a mass 800 million times that of our Sun, pushing the boundaries of understanding the early cosmos. The discovery, based on data from Gemini Observatory, reveals the universe was only 5% of its current age at this distance.
A team of astronomers discovered the most-distant supermassive black hole ever observed, located in a luminous quasar and emitting light from 5% of its current age. The black hole has a mass 800 million times that of our Sun, posing a challenge to theories of supermassive black hole growth.
A team of astronomers has detected the most distant supermassive black hole ever observed, measuring around 800 million times the mass of our sun. The black hole's extreme size is puzzling, as the universe was not old enough to create such a massive object just 690 million years after the Big Bang.
Astronomers have discovered a quasar harboring an 800 million solar mass black hole, located in a primarily neutral Universe at a redshift of 7.54. The finding challenges our understanding of the early growth of supermassive black holes and their host galaxies.
Researchers have gained a better understanding of the structure of hot jets and accretion disks surrounding black holes at the center of galaxies. They compared data from radio interferometry and Gaia space observatory, discovering discrepancies in object positions that revealed bright jets emitting visible light in many quasars.
Astronomers observe magnetic field of a galaxy 5 billion light-years away, finding a similar strength and configuration to the Milky Way's. This suggests galactic magnetic fields form early in a galaxy's life and remain relatively stable.
Astronomers at the University of Iowa suggest quasars could be responsible for the extinction of dusty starburst galaxies. The study found four galaxies with visible quasars, which could indicate that every dusty starburst galaxy hosts a quasar.
Researchers used data from the intergalactic medium to narrow down what dark matter could be, casting doubt on 'fuzzy dark matter' and lending credence to 'cold dark matter.' The findings could inform ongoing efforts to detect dark matter directly.
A team of astronomers discovered a new kind of galaxy that formed less than a billion years after the Big Bang, creating stars more than 100 times faster than our Milky Way. This find solves a long-standing puzzle of how massive galaxies came to have hundreds of billions of stars when they formed so quickly.
A team of astronomers has made the first measurements of small-scale ripples in primeval hydrogen gas, using rare double quasars. The results provide important clues about the temperature of gas in the cosmic web just a few billion years after the Big Bang.
Researchers directly observed two Milky Way-like galaxies when the universe was eight percent of its current age, surrounded by massive hydrogen gas halos. The galaxies are forming stars at moderate rates and already rotating, similar to today's giant spiral galaxies.
Astronomers discovered a supermassive black hole weighing over 1 billion suns that was propelled out of the center of a distant galaxy due to gravitational wave energy. The estimated equivalent energy is 100 million supernovas, and the black hole travels at speeds of up to 4.7 million miles per hour.
Researchers used ALMA to detect emissions from two distant galaxies, revealing massive, dusty systems with high star formation rates and extended layers of gas. The galaxies are embedded in a large halo or disk of neutral hydrogen gas, indicating rapid growth and evolution.
The discovery of over 60 extremely distant quasars nearly doubles the known number, offering a unique window into the early universe. Studying these 'lighthouses' of the cosmos will help understand how galaxies developed and interacted with supermassive black holes.
Astronomers have found a massive, luminous nebula at the heart of a 'rotocluster' of early galaxies, which appears to be part of the cosmic web connecting galaxies. The newly discovered nebula, MAMMOTH-1, is thought to be powered by a hidden active galactic nucleus (AGN) that is strongly obscured by dust.
The H0LiCOW collaboration has made a new measurement of the Hubble constant using quasars and gravitational lensing. The result agrees with recent independent studies but disagrees significantly with cosmic microwave background measurements, potentially indicating new physics beyond the standard cosmological model.