Latest Supermassive black holes Stories

Aircraft Telescope Images Ring Of Dust Surrounding Black Hole
2013-07-10 13:34:10

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using a telescope attached to a modified Boeing 747SP aircraft have captured new images of a ring of gas and dust seven light-years in diameter surrounding the super-massive black hole at the center of the Milky Way. The team used NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) to capture images of our galaxy's circumnuclear ring (CNR), as well as a neighboring cluster of extremely luminous young stars known...

Black Hole Observed Pushing Matter Away, Rather Than Consuming It
2013-06-20 06:27:46

Lawrence LeBlond for redOrbit.com - Your Universe Online Observations of a nearby active galaxy using the Very Large Telescope Interferometer (VLTI) at ESO´s Paranal Observatory in Chile have shown astronomers something they hadn´t expected to see. Astronomers have found over the past twenty years that nearly all galaxies have a black hole at their center, some of which grow by drawing in matter from their surroundings. This growth process creates some of the most energetic objects...

Black Hole Count Keeps Growing For The Andromeda Galaxy
2013-06-13 06:10:47

April Flowers for redOrbit.com - Your Universe Online Astronomers have discovered an unprecedented number of black holes in the Andromeda Galaxy (M31), one of the Milky Way´s nearest cosmic neighbors, using data from NASA´s Chandra X-ray Observatory. By analyzing more than 150 Chandra observations taken over 13 years, the research team has identified 26 black hole candidates. This is the largest number discovered to date in a galaxy outside our own. Many scientists consider...

NuSTAR Observes Dormant Black Hole In Nearby Sculptor Galaxy
2013-06-12 08:35:23

April Flowers for redOrbit.com - Your Universe Online NASA´s Chandra X-ray Observatory caught signs of what appeared to be a black hole eating gas at the middle of the nearby Sculptor Galaxy nearly a decade ago. A new observation by NASA´s Nuclear Spectroscopic Telescope Array (NuSTAR) has found the black hole asleep. Details of NuSTAR´s findings were published in the Astrophysical Journal. "Our results imply that the black hole went dormant in the past 10 years," said...

Sagittarius A Black Hole To Devour Hot Molecular Gas
2013-05-07 12:42:37

Lee Rannals for redOrbit.com - Your Universe Online The European Space Agency's (ESA) Herschel spacecraft has revealed that the supermassive black hole in the center of our galaxy is about to get a taste of some hot molecular gas. Sagittarius A has a mass of about four million times that of our Sun and sits about 26,000 light-years away from us. It is a few hundred times closer to us than any other galaxy with an active black hole at its center, making it ideal for studying these...

Unexpected Star Formation Found Near Massive Black Hole
2013-04-05 10:29:46

Brett Smith for redOrbit.com - Your Universe Online The entire Milky Way galaxy revolves around a supermassive black hole, which is surrounded by a turbulent expanse of space fraught with extreme gravitational forces. Despite the inhospitable nature of this region, a team of American astronomers has found jets of material that typically indicate star formation when found in less tumultuous sections of the universe, according to their report in the Astrophysical Journal Letters....

Distant Black Hole Wakes Up For A Snack
2013-04-02 13:51:29

Watch the video "Black Hole Eats Super-Jupiter" Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the European Space Agency's (ESA) Integral space observatory have watched as a black hole woke up to feed on a low-mass object that strayed just a little too close. The team was using the Integral observatory to study a galaxy 47 million light-years away when they noticed a bright X-ray flare coming from another location. "The observation was completely unexpected,...

Scientests Discover Extremely Rare Triple Quasar
2013-03-12 09:51:15

Royal Astronomical Society For only the second time in history, a team of scientists including Michele Fumagalli from the Carnegie Institution for Science in the United States have discovered an extremely rare triple quasar system. Their work is published in the Oxford University Press journal Monthly Notices of the Royal Astronomical Society. Quasars are extremely bright and powerful sources of energy that sit in the center of a galaxy, surrounding a black hole. In systems with...

The Milky Way's Violent Past
2013-03-06 04:20:09

[ Listen to the three-part interview with Prof. Holley-Bockelmann in RedOrbit´s Your Universe Today Podcasts ] John P. Millis, Ph.D. for redOrbit.com — Your Universe Online As astronomers peer out into the distant reaches of the Universe they find that some galaxies are emitting enormous amounts of radiation from their cores. Supermassive black holes at the center of these galaxies consume the surrounding gas and dust, heat it up, and thrust it into outer space at nearly the...

Latest Supermassive black holes Reference Libraries

2004-10-19 04:45:42

Supermassive Black Hole -- A Supermassive black hole is a black hole with a mass in the range of millions or billions solar masses. A supermassive black hole has some interesting properties differing from his low-mass cousins: -- The average density of a supermassive black hole can be very low, and actually can be lower than water's density. This happens because the black hole diameter increases linearly with mass, and consequently density drops much faster. -- Strong tidal...

2004-10-19 04:45:42

Seyfert Galaxy -- Seyfert galaxies are spiral or irregular galaxies containing an extremely bright nucleus, most likely caused by a supermassive black hole, that can sometimes outshine the surrounding galaxy. The light from the central nucleus varies in less than a year, which implies that the emitting region must be less than one light year across. They are named for the astronomer Carl Seyfert, who studied them extensively in the 1940s. They are a subclass of active galactic nuclei....

2004-10-19 04:45:42

Quasar -- A quasar (from quasi-stellar radio source) is an astronomical object that looks like a star in optical telescopes (i.e. it is a point source), but has a very high redshift. The general consensus is that this high redshift is cosmological, the result of Hubble's law and that their redshift indicates that they are typically very distant from Earth; we observe them as they were several billions of years ago. Since we can see them despite their distance, they must emit more...

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Word of the Day
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'