Supermassive Black Hole Current Events

Supermassive Black Hole Current Events, Supermassive Black Hole News Articles.
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Black hole caught in a feeding frenzy
When it comes to scary things in the universe, it's hard to get much scarier than supermassive black holes. These gigantic, invisible menaces lurk in the centers of galaxies, hungrily vacuuming up everything within reach -- or so we think. But the truth is more benign. Supermassive black holes snack infrequently, making the recent discovery of a black hole in the act of feeding all the more exciting to astronomers. (2012-05-03)

A test of general relativity at the galaxy's center suggests Einstein's theory still holds
In a detailed study of a star orbiting the supermassive black hole at the center of our galaxy, researchers report that Einstein's theory of general relativity (GR) accurately describes the behavior of light struggling to escape the gravity around this massive structure. (2019-07-25)

Black holes grow big by eating stars
Most galaxies, including the Milky Way, have a supermassive black hole at their center weighing millions to billions of suns. But how do those black holes grow so hefty? Some theories suggest they were born large. Others claim they grew larger over time through black hole mergers, or by consuming huge amounts of gas. New research shows that supermassive black holes can grow big by ripping apart double-star systems and swallowing one of the stars. (2012-04-02)

Hiding black hole found
Astronomers have detected a stealthy black hole from its effects on an interstellar gas cloud. This intermediate mass black hole is one of over 100 million quiet black holes expected to be lurking in our Galaxy. These results provide a new method to search for other hidden black holes and help us understand the growth and evolution of black holes. (2019-02-28)

Nearby black hole is feeble and unpredictable
A decade-long study by NASA's Chandra X-ray Observatory reveals that the supermassive black hole at the heart of the Andromeda galaxy was in a very dim, or quiet, state before 2006. However, on January 6, 2006, the black hole became more than a hundred times brighter, suggesting an outburst of X-rays. This was the first time such an event had been seen from a supermassive black hole in the nearby, local universe. (2010-05-25)

Gas promises bumper black hole 'weigh-in'
A new way of measuring the mass of supermassive black holes could revolutionize our understanding of how they form and help to shape galaxies. (2013-01-31)

Skinny galaxy has supermassive black hole at core, just like bulging galaxies
When astronomers see a spiral galaxy without a central bulge, they assume it has no supermassive black hole at the core. Only galaxies with a bulge, like our own Milky Way, should contain such black holes. UC Berkeley and Carnegie astronomers have upset this assumption by finding a svelte spiral galaxy with a (2003-04-10)

A massive black hole has been found at the center of an ultra-compact galaxy
A team of researchers, including an astronomer from Michigan State University, has discovered a huge black hole at the center of an ultra-compact galaxy -- the smallest galaxy known to contain one. (2014-09-17)

Oscillating X-rays from consumed stars offer new insights into the nature of black holes
The streams of electromagnetic energy released from a star destroyed by the tidal forces of a supermassive black hole nearly 290 million light years away encode valuable information about the physical properties of black holes, a new study finds. (2019-01-09)

Black hole spin cranks-up radio volume
Statistical analysis of supermassive black holes suggests that the spin of the black hole may play a role in the generation of powerful high-speed jets blasting radio waves. By analyzing nearly 8000 quasars from the Sloan Digital Sky Survey, research team found that the oxygen emissions are 1.5 times stronger in radio loud quasars than in radio quiet quasars. This implies that spin is an important factor in the generation of jets. (2018-01-12)

Supermassive black hole spins super-fast
Imagine a sphere more than two million miles across - eight times the distance from Earth to the Moon - spinning so fast that its surface is traveling at nearly the speed of light. Such an object exists: The supermassive black hole at the center of the spiral galaxy NGC 1365. (2013-02-27)

Study finds two supermassive black holes spiraling toward collision
A pair of supermassive black holes in the distant universe are intertwined and spiraling toward a merger that will create a single super-supermassive black hole capable of swallowing billions of stars, according to a new study. (2006-04-06)

OU astrophysicist and collaborators find supermassive black holes in quasar nearest Earth
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. (2015-08-27)

Planets around a black hole?
Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a supermassive black hole. (2019-11-25)

Discovery of the closest binary supermassive black hole system in the galaxy NGC 7674
Scientists from NCRA-TIFR, Pune, and RIT, USA, have discovered the closest ever binary supermassive black hole system in a spiral galaxy NGC 7674, located about 400 million light years from Earth. The apparent separation of the two black holes in the binary system is less than one light year. This is direct observational proof of the existence of close supermassive black hole binary systems inside galaxies, which are potential sources of gravitational waves. (2017-09-19)

Supermassive black holes can feast on one star per year
Supermassive black holes in some galaxies can eat stars at a rate of one per year in the period following a galactic merger, helping explain a longstanding astronomical mystery about eccentric stellar orbits. (2018-02-01)

A new way to weigh giant black holes
How do you weigh the biggest black holes in the universe? One answer now comes from a completely new and independent technique that astronomers have developed using data from NASA's Chandra X-ray Observatory. By measuring a peak in the temperature of hot gas in the center of the giant elliptical galaxy NGC 4649, scientists have determined the mass of the galaxy's supermassive black hole. The method, applied for the first time, gives results that are consistent with a traditional technique. (2008-07-16)

Mammoth collision of `impossible' black holes detected for the first time
The most massive black hole collision ever detected has been directly observed by the LIGO and VIRGO Scientific Collaboration, which includes scientists from The Australian National University (ANU). (2020-09-02)

Rain of giant gas clouds create active galactic nuclei
In a new research paper appearing in the early online edition of Astrophysical Journal Letters, researchers affiliated with the American Museum of Natural History tie the continual rain of gas onto galaxy centers to extremely bright active galactic nuclei. (2010-07-08)

Hubble gazes into a black hole of puzzling lightness
The beautiful spiral galaxy visible in the center of the image is known as RX J1140.1+0307, a galaxy in the Virgo constellation imaged by the NASA/ESA Hubble Space Telescope, and it presents an interesting puzzle. At first glance, this galaxy appears to be a normal spiral galaxy, much like the Milky Way. (2017-01-13)

Large simulation finds new origin of supermassive black holes
Computer simulations conducted by astrophysicists at Tohoku University in Japan, have revealed a new theory for the origin of supermassive black holes. In this theory, the precursors of supermassive black holes grow by swallowing up not only interstellar gas, but also smaller stars as well. This helps to explain the large number of supermassive black holes observed today. (2020-06-02)

XMM-Newton takes astronomers to a black hole's edge
Using new data from ESA's XMM-Newton spaceborne observatory, astronomers have probed closer than ever to a supermassive black hole lying deep at the core of a distant active galaxy. (2009-05-27)

Astronomers find evidence for tens of thousands of black holes
UCLA astronomers present the first evidence that tens of thousands of black holes are orbiting the monstrous black hole at the center of the Milky Way, 26,000 light years away. Michael Muno, a UCLA postdoctoral Hubble Fellow, has studied the inner 75 light-years of the Milky Way, searching for bright X-ray sources likely to be accreting black holes and neutron stars, using NASA's Chandra X-ray Observatory. (2005-01-10)

Black hole came from a shredded galaxy
Astronomers using NASA's Hubble Space Telescope have found a cluster of young, blue stars encircling the first intermediate-mass black hole ever discovered. The presence of the star cluster suggests that the black hole was once at the core of a now-disintegrated dwarf galaxy. The discovery of the black hole and the star cluster has important implications for understanding the evolution of supermassive black holes and galaxies. (2012-02-15)

Black hole jerked around twice
Scientists have found evidence that a giant black hole has been jerked around twice, causing its spin axis to point in a different direction from before. This discovery, made with new data from NASA's Chandra X-ray Observatory, might explain several mysterious-looking objects found throughout the universe. (2010-07-21)

A new light on stellar death
An international group of astronomers illuminates the role rapidly spinning black holes play in tidal disruption events. (2016-12-12)

Proto supermassive binary black hole detected in X-rays
An international team of astronomers led by D. Hudson from the University of Bonn has detected a proto supermassive binary black hole in images of NASA's Chandra X-ray observatory. They found that these two black holes are gravitationally bound and orbit each other. Their results will be published in an upcoming issue of Astronomy & Astrophysics. (2006-04-06)

Belching black hole proves a biggie
Observations with CSIRO's Australia Telescope Compact Array have confirmed that astronomers have found the first known (2012-07-08)

Capturing black hole spin could further understanding of galaxy growth
Astronomers have found a new way of measuring the spin in supermassive black holes, which could lead to better understanding about how they drive the growth of galaxies. (2013-07-29)

Black holes could grow as large as 50 billion suns before their food crumbles into stars according to research
University of Leicester scientist suggests maximum swelling size of black holes. (2015-12-18)

The sleeping giant
The placid appearance of NGC 4889 can fool the unsuspecting observer. But the elliptical galaxy, pictured in this new image from the NASA/ESA Hubble Space Telescope, harbors a dark secret. At its heart lurks one of the most massive black holes ever discovered. (2016-02-11)

The last cry of matter
'Black holes' are truly black. When an object gets within a certain distance from a black hole, it will get swallowed forever with no chance to escape. That includes light, which means that black holes do not shine. (2003-11-27)

Revealing a mini-supermassive black hole
One of the lowest mass supermassive black holes ever observed in the middle of a galaxy has been identified, thanks to NASA's Chandra X-ray Observatory and several other observatories. The black hole is located in the middle of the spiral galaxy NGC 4178. The host galaxy is of a type not expected to harbor supermassive black holes, suggesting that this black hole, while related to its supermassive cousins, may have a different origin. (2012-10-24)

Surprise: Dwarf galaxy harbors supermassive black hole
The discovery of a relatively nearby dwarf galaxy with a supermassive black hole shows astronomers what young galaxies in the very early Universe probably were like. It also greatly strengthens the case for such supermassive black holes forming before the galaxies built up to full size. (2011-01-09)

Black hole's heart still beating
The first confirmed heartbeat of a supermassive black hole is still going strong more than ten years after first being observed. (2020-06-09)

Dark matter guides growth of supermassive black holes
Every massive galaxy has a black hole at its center, and the heftier the galaxy, the bigger its black hole. But why are the two related? After all, the black hole is millions of times smaller and less massive than its home galaxy. A new study of football-shaped collections of stars called elliptical galaxies finds that the invisible hand of dark matter somehow influences black hole growth. (2015-02-18)

Rutgers' black hole discovery: The first galaxy without one or the smallest black hole yet?
Using the Hubble Space Telescope Imaging Spectroscope, astronomers from Rutgers' Supermassive Black Hole Research Group have made an exciting discovery. While all galaxies investigated to date have demonstrated a central supermassive black hole, none was detected in neighboring galaxy M33 -- or one is present that is smaller than ever seen before. (2001-07-19)

No relation between a supermassive black hole and its host galaxy!?
Using ALMA to observe an active galaxy with a strong ionized gas outflow from the galactic center, a team led by Dr. Toba of ASIAA (Taiwan) has obtained a result making astronomers even more puzzled -- the team clearly detected CO gas associated with the galactic disk, yet they have also found that the CO gas which settles in the galaxy is not affected by the strong ionized gas outflow launched from the galactic center. (2018-02-20)

Watching for a black hole to gobble up a gas cloud
G2, a doomed gas cloud, is edging closer to Sgr A*, the hungry supermassive black hole at the Milky Way's center. The closest approach between the two is predicted to occur any day now. Northwestern University astrophysicist Daryl Haggard has been watching closely, and her data do not show enhanced emission in the X-rays. 'The gas cloud is late to the party, but it remains to be seen whether G2 is fashionably late or a no show,' Haggard says. (2014-04-03)

Astronomers detect black hole in tiny 'dwarf' galaxy
Astronomers have found evidence of a supermassive black hole at the heart of a dwarf elliptical galaxy about 54 million light years away from the Milky Way galaxy where Earth resides. (2007-01-07)

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