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Quasar Current Events and Quasar News from Brightsurf

Quasar Current Events and Quasar News Events, Discoveries and Articles from Brightsurf

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Scientists use mismatch in telescopic data to get a handle on quasars and their 'tails'

Tue, 12 Sep 17 00:15:30 -0700

Scientists compared the data on the coordinates of quasars obtained by Gaia and VLBI and suggested a method for revealing structure indirectly by means of combining the data from existing telescopes. Moreover, the precision they've got is superior to what is possible with ordinary optical telescopes and even with Hubble.

Magnetic fields in distant galaxy are new piece of cosmic puzzle

Wed, 30 Aug 17 00:16:00 -0700

Astronomers have measured magnetic fields in a galaxy 4.6 billion light-years away -- a big clue to understanding how magnetic fields formed and evolved over cosmic time.

Record-breaking galaxy 5 billion light-years away shows we live in a magnetic universe

Mon, 28 Aug 17 00:07:30 -0700

A team of astronomers has observed the magnetic field of a galaxy five billion light-years from Earth. The galaxy is the most distant in which a coherent magnetic field has been observed and provides important insight into how magnetism in the universe formed and evolved.

VLA reveals distant galaxy's magnetic field

Mon, 28 Aug 17 00:06:40 -0700

A chance combination of a gravitational lens and polarized waves coming from a distant quasar gave astronomers the tool needed to make a measurement important to understanding the origin of magnetic fields in galaxies.

Quasars may answer how starburst galaxies were extinguished

Mon, 31 Jul 17 00:14:00 -0700

University of Iowa astronomers have located quasars inside four dusty starburst galaxies. The observations suggest quasars may starve this type of galaxy of energy needed to form stars. Results published in the Astrophysical Journal.

Dark matter is likely 'cold,' not 'fuzzy,' scientists report after new simulations

Mon, 24 Jul 17 00:06:30 -0700

Scientists have used data from the intergalactic medium -- the vast, largely empty space between galaxies -- to narrow down what dark matter could be.

Optical communication using solitons on a photonic chip

Thu, 08 Jun 17 00:02:10 -0700

Researchers from KIT and EPFL used optical silicon nitride micro-resonators on a photonic chip that can easily be integrated into compact communication systems. Their demonstration allows a transmission of data rate of 55 terabits per second over a distance of 75 kilometers.

Ripples in the cosmic web

Thu, 27 Apr 17 00:04:50 -0700

A team of astronomers has made the first measurements of small-scale ripples in primeval hydrogen gas using rare double quasars.

Astronomers observe early stages of Milky Way-like galaxies in distant universe

Thu, 23 Mar 17 00:07:40 -0700

For decades, astronomers have found distant galaxies by detecting the characteristic way their gas absorbs light from a bright quasar in the background. But efforts to observe the light emitted by these same galaxies have mostly been unsuccessful. Now, a team of astronomers using the Atacama Large Millimeter Array (ALMA) in Chile has observed emissions from two distant galaxies initially detected by their quasar absorption signatures, and the results were not what they had expected.

Gravitational wave kicks monster black hole out of galactic core

Thu, 23 Mar 17 00:12:10 -0700

Astronomers have uncovered a supermassive black hole that has been propelled out of the center of a distant galaxy by what could be the awesome power of gravitational waves.

Hubble detects supermassive black hole kicked out of galactic core

Thu, 23 Mar 17 00:13:30 -0700

An international team of astronomers using the NASA/ESA Hubble Space Telescope have uncovered a supermassive black hole that has been propelled out of the centre of the distant galaxy 3C186. The black hole was most likely ejected by the power of gravitational waves. This is the first time that astronomers found a supermassive black hole at such a large distance from its host galaxy center.

Milky Way-like galaxies in early universe embedded in 'super halos'

Thu, 23 Mar 17 00:08:50 -0700

Using ALMA, astronomers have directly observed a pair of Milky Way-like galaxies seen when the universe was only eight percent of its current age. These progenitors of today's giant spiral galaxies are surrounded by 'super halos' of hydrogen gas that extend many tens-of-thousands of light-years beyond their dusty, star-filled disks.

Hubble dates black hole's last big meal

Thu, 09 Mar 17 00:12:30 -0800

The massive black hole ate its last big meal about 6 million years ago, when it consumed a large clump of infalling gas.

A new look at the nature of dark matter

Mon, 06 Mar 17 00:14:00 -0800

A new study suggests that the gravitational waves detected by the LIGO experiment must have come from black holes generated during the collapse of stars, and not in the earliest phases of the Universe.

Vast luminous nebula poses a cosmic mystery

Thu, 23 Feb 17 00:09:00 -0800

Astronomers have found an enormous, glowing blob of gas in the distant universe, with no obvious source of power for the light it is emitting. Called an 'enormous Lyman-alpha nebula' (ELAN), it is the brightest and among the largest of these rare objects, only a handful of which have been observed.

Cosmic lenses support finding on faster than expected expansion of the universe

Thu, 26 Jan 17 00:03:00 -0800

By using galaxies as giant gravitational lenses, an international group of astronomers using the NASA/ESA Hubble Space Telescope have made an independent measurement of how fast the universe is expanding. The newly measured expansion rate for the local Universe is consistent with earlier findings. These are, however, in intriguing disagreement with measurements of the early universe. This hints at a fundamental problem at the very heart of our understanding of the cosmos.

Astronomers measure universe expansion, get hints of 'new physics'

Thu, 26 Jan 17 00:04:30 -0800

Astronomers have just made a new measurement of the Hubble Constant, the rate at which the universe is expanding, and it doesn't quite line up with a different estimate of the same number. That discrepancy could hint at 'new physics' beyond the standard model of cosmology, according to the team, which includes physicists from UC Davis, that made the observation.

How fast is the universe expanding? Quasars provide an answer

Thu, 26 Jan 17 00:03:30 -0800

The H0LiCOW collaboration, a cosmology project led by EPFL and Max Planck Institute and regrouping several research organizations in the world has made a new measurement of the Hubble constant, which indicates how fast the universe is expanding. The new measurement challenges some of the most recent ones, potentially pointing towards new physics beyond the standard cosmological model.

Do extremely reddened quasars extinguish star formation?

Tue, 15 Nov 16 00:02:50 -0800

New research, led by Frederick Hamann, a professor at the Department of Physics and Astronomy at University of California, Riverside, describes the discovery of a unique new population of extremely red quasars. The findings were recently published in the journal the Monthly Notices of the Royal Astronomical Society.

MAGIC observes a gravitational lens at very high energies

Tue, 08 Nov 16 00:04:00 -0800

Scientists working with the Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) observatory report the discovery of the most distant gamma-ray source ever observed at very high energies, thanks to the 'replay' of an enormous flare by a galactic gravitational lens as foreseen by Einstein's General Relativity.

Milky Way had a blowout bash 6 million years ago

Mon, 29 Aug 16 00:05:50 -0700

The center of the Milky Way galaxy is currently a quiet place where a supermassive black hole slumbers, only occasionally slurping small sips of hydrogen gas. But it wasn't always this way. A new study shows that 6 million years ago, when the first human ancestors known as hominins walked the Earth, our galaxy's core blazed forth furiously. The evidence for this active phase came from a search for the galaxy's missing mass.

Black holes and measuring gravitational waves

Thu, 16 Jun 16 00:16:00 -0700

The supermassive black holes found at the center of every galaxy, including our own Milky Way, may, on average, be smaller than we thought, according to work led by University of Southampton astronomer Dr. Francesco Shankar.

Behemoth black hole found in an unlikely place

Wed, 06 Apr 16 00:14:30 -0700

Astronomers have uncovered a near-record breaking supermassive black hole, weighing 17 billion suns, in an unlikely place: in the center of a galaxy in a sparsely populated area of the universe. The observations, made by NASA's Hubble Space Telescope and the Gemini Telescope in Hawaii, may indicate that these monster objects may be more common than once thought.

Supermassive black holes may be lurking everywhere in the universe

Wed, 06 Apr 16 00:04:00 -0700

One of the largest supermassive black holes on record has been discovered in an unexpected place: a relatively sparse region of the local universe where massive galaxies -- the typical home of these huge black holes -- are few and far between. According to UC Berkeley astronomer Chung-Pei Ma, there could be many more such black holes -- quiescent quasars -- hiding in the universe's deserts. This one may be or once was a binary black hole.

Second quantum revolution a reality with chip-based atomic physics

Wed, 30 Mar 16 00:05:40 -0700

A University of Oklahoma-led team of physicists believes chip-based atomic physics holds promise to make the second quantum revolution -- the engineering of quantum matter with arbitrary precision -- a reality. With recent technological advances in fabrication and trapping, hybrid quantum systems are emerging as ideal platforms for a diverse range of studies in quantum control, quantum simulation and computing.

Earth-space telescope system produces hot surprise

Tue, 29 Mar 16 00:16:00 -0700

Combining an orbiting radio telescope with telescopes on Earth made a system capable of the highest resolution of any observation ever made in astronomy. The super sharp radio 'vision' produced a pair of surprises.

New research shows quasars slowed star formation

Wed, 23 Mar 16 00:10:30 -0700

Research led by Johns Hopkins University scientists has found new persuasive evidence that could help solve a longstanding mystery in astrophysics: why did the pace of star formation in the universe slow down some 11 billion years ago?

Record-breaking ultraviolet winds discovered near black hole

Mon, 21 Mar 16 00:00:50 -0700

The fastest winds at ultraviolet wavelengths have been discovered near a supermassive black hole. The winds have speeds of more than 200 million miles an hour, equivalent to a category 77 hurricane. The research team's discovery of the fastest ultraviolet winds ever confirmed from a quasar -- the disk of hot gas that surrounds the black hole -- is published in the 21 March 2016 print issue of the Monthly Notices of the Royal Astronomical Society.

York University astrophysicists detect ultra-fast winds near supermassive black hole

Mon, 21 Mar 16 00:14:20 -0700

Researchers have found the fastest winds ever seen at ultraviolet wavelengths near a supermassive black hole. Some are reaching as fast as 200 million kilometers, equivalent to a category 77 hurricane, says Jesse Rogerson of Toronto's York University who led the research. And there may be even faster quasar winds. As matter spirals toward a black hole, some is blown away. These are the winds that we are detecting, says York U Professor Patrick Hall.

NASA station leads way for improved measurements of Earth orientation, shape

Thu, 10 Mar 16 00:05:50 -0800

NASA has demonstrated the success of advanced technology for making precise measurements of Earth's orientation and rotation -- information that helps provide a foundation for navigation of all space missions and for geophysical studies of our planet.

Clocking the rotation rate of a supermassive black hole

Thu, 10 Mar 16 00:01:10 -0800

The rotational rate of one of the most massive black holes in the universe has been accurately measured by an international team of astronomers, using several optical telescopes and NASA's SWIFT X-ray telescope. The rotational rate of this massive black hole is one third of the maximum spin rate allowed in General Relativity. This 18 billion solar mass heavy black hole powers a quasar OJ287 which lies about 3.5 billion light years away from Earth.

Object located around a black hole 5 billion light-years from Earth has been measured

Thu, 25 Feb 16 00:07:10 -0800

The team of researchers, with the participation of the University of Granada, has succeeded in measuring the inner edge of the disk of matter that orbits around a supermassive black hole in a quasar (an object the size of our solar system that emits as much energy as a whole galaxy).

PPPL physicists help celebrate first hydrogen plasma on W7-X

Fri, 05 Feb 16 00:13:40 -0800

Princeton Plasma Physics Laboratory (PPPL) physicists collaborating on the Wendelstein 7-X (W 7-X) stellarator fusion energy device in Greifswald, Germany were on hand for the Feb. 3 celebration when German Chancellor Angela Merkel pushed a button to produce a hydrogen-fueled superhot gas called a plasma.

Dark 'noodles' may lurk in the Milky Way

Thu, 21 Jan 16 00:07:00 -0800

Invisible structures shaped like noodles, lasagne sheets or hazelnuts could be floating around in our Galaxy radically challenging our understanding of gas conditions in the Milky Way. CSIRO astronomer and first author of a paper released in Science Dr. Keith Bannister said the structures appear to be 'lumps' in the thin gas that lies between the stars in our Galaxy. The observations were made possible by an innovative new technique the scientists employed using CSIRO's Compact Array telescope in eastern Australia.

Extreme turbulence roiling 'most luminous galaxy' in the universe

Fri, 15 Jan 16 00:00:20 -0800

The most luminous galaxy in the universe -- a so-called obscured quasar 12.4 billion light-years away -- is so violently turbulent that it may eventually jettison its entire supply of star-forming gas, according to new observations with ALMA.

The turbulent birth of a quasar

Fri, 15 Jan 16 00:13:40 -0800

The most luminous galaxy known in the universe -- the quasar W2246-0526, seen when the Universe was less than 10 percent of its current age -- is so turbulent that it is in the process of ejecting its entire supply of star-forming gas, according to new observations with the Atacama Large Millimeter/submillimeter Array (ALMA).

Quiet quasar has apparently eaten its fill

Fri, 08 Jan 16 00:08:40 -0800

Astronomers with the Sloan Digital Sky Survey (SDSS) announced that a distant quasar ran out of gas. Their conclusions, reported Jan. 8 at the American Astronomical Society meeting in Kissimmee, Florida, clarify why quasar SDSS J1011+5442 changed so dramatically in the handful of years between observations.

Quasar outburst revises understanding of universe, quasars

Tue, 15 Dec 15 00:10:10 -0800

An outburst from a distant quasar known as PKS 1441+25 in April of this year gave astronomers at the gamma-ray telescope VERITAS an opportunity to measure the density of the optical 'fog' that lies between the quasar and Earth and to deduce the surprising separation of the high-energy emission from the black hole that drives it.

Researcher's work offers more proof of Einstein's general theory of relativity

Tue, 17 Nov 15 00:11:20 -0800

A Florida State University high-performance computing researcher has predicted a physical effect that would help physicists and astronomers provide fresh evidence of the correctness of Einstein's general theory of relativity.

Astrosat's Soft X-ray Telescope sees first light

Sat, 31 Oct 15 00:01:00 -0700

The Soft X-ray focusing Telescope (SXT) onboard Astrosat, India's first satellite dedicated to astronomical observations, saw its first light from an astronomical source in a distant galaxy, on Oct. 26. The SXT is India's first X-ray telescope based on doubly reflecting grazing incidence optics, containing 320 mirrors assembled together in 2 sets of 40 co-axial shells. The mirrors and the precision structure for assembling them were built at the Tata Institute of Fundamental Research Mumbai.

New support for converging black holes in Virgo constellation

Wed, 16 Sep 15 00:05:10 -0700

In a new study in Nature, astronomers at Columbia University provide additional evidence that a pair of closely orbiting black holes deep in the Virgo constellation is causing the rhythmic flashes of light coming from quasar PG 1302-102. Based on calculations of the pair's mass -- together, and relative to each other -- the researchers go on to predict a smashup 100,000 years from now, far sooner than previously predicted.

OU astrophysicist and collaborators find supermassive black holes in quasar nearest Earth

Thu, 27 Aug 15 00:01:10 -0700

A University of Oklahoma astrophysicist and his Chinese collaborator have found two supermassive black holes in Markarian 231, the nearest quasar to Earth, using observations from NASA's Hubble Space Telescope. The discovery of two supermassive black holes -- one larger one and a second, smaller one -- are evidence of a binary black hole and suggests that supermassive black holes assemble their masses through violent mergers.

NASA explains why June 30 will get extra second

Fri, 26 Jun 15 00:01:30 -0700

The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or 'leap' second, will be added.

Galactic crashes fuel quasars, study finds

Thu, 18 Jun 15 00:15:20 -0700

Using the Hubble Space Telescope's infrared vision, astronomers have unveiled some of the previously hidden origins of quasars, the brightest objects in the universe. A new study finds that quasars are born when galaxies crash into each other and fuel supermassive, central black holes.

NASA's Hubble sees the 'teenage years' of quasars

Thu, 18 Jun 15 00:02:00 -0700

Astronomers have used the Hubble Space Telescope's infrared vision to uncover the mysterious early formative years of quasars, the brightest objects in the universe. Hubble's sharp images unveil chaotic collisions of galaxies that fuel quasars by feeding supermassive central black holes with gas.

Pulsing light may indicate supermassive black hole merger

Mon, 20 Apr 15 00:01:40 -0700

As two galaxies enter the final stages of merging, scientists have theorized that the galaxies' supermassive black holes will form a 'binary,' or two black holes in such close orbit they are gravitationally bound to one another. In a new study, astronomers at the University of Maryland present direct evidence of a pulsing quasar, which may substantiate the existence of black hole binaries.

Hubble finds phantom objects near dead quasars

Thu, 02 Apr 15 00:15:00 -0700

NASA's Hubble Space Telescope has photographed a set of wispy, goblin-green objects that are the ephemeral ghosts of quasars that flickered to life and then faded.

Hubble finds ghosts of quasars past

Thu, 02 Apr 15 00:11:20 -0700

The NASA/ESA Hubble Space Telescope has imaged a set of enigmatic quasar ghosts -- ethereal green objects which mark the graves of these objects that flickered to life and then faded. The eight unusual looped structures orbit their host galaxies and glow in a bright and eerie goblin-green hue. They offer new insights into the turbulent pasts of these galaxies.

Suzaku, Herschel link a black-hole 'wind' to a galactic gush of star-forming gas

Wed, 25 Mar 15 00:09:40 -0700

By combining observations from the Japan-led Suzaku X-ray satellite and the European Space Agency's infrared Herschel Space Observatory, scientists have connected a fierce 'wind' produced near a galaxy's monster black hole to an outward torrent of cold gas a thousand light-years across. The finding validates a long-suspected feedback mechanism enabling a supermassive black hole to influence the evolution of its host galaxy.

Astronomers find impossibly large black hole

Wed, 25 Feb 15 00:15:00 -0800

Astronomers have found a huge black hole which was powering the brightest object in the early universe. The black hole's mass is 12 billion solar masses, and the surrounding quasar pumped out 10^15 times the sun's energy.