News tagged with radio emission
An Intriguing, Glowing Galaxy
May 14, 2009 |
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A supermassive black hole may be responsible for the glowing appearance of galaxy 3C 305, located about 600 million light years away in the constellation Draco. Composite data from NASA’s Chandra X-ray Observatory ...
Ghostly glow reveals galaxy clusters in collision
Oct 15, 2008 |
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A team of scientists, including astronomers from the Naval Research Laboratory (NRL), have detected long wavelength radio emission from a colliding, massive galaxy cluster which, surprisingly, is not detected ...
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Black hole outflows from Centaurus A detected with APEX
Jan 28, 2009 |
4.7 / 5 (14) |
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(PhysOrg.com) -- Astronomers have a new insight into the active galaxy Centaurus A (NGC 5128), as the jets and lobes emanating from the central black hole have been imaged at submillimetre wavelengths for ...
Researchers discover never-before-seen pulsar blasts in Crab Nebula
Jan 08, 2007 |
4.3 / 5 (8) |
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Astronomers and physicists using the Cornell-managed Arecibo Telescope in Puerto Rico have discovered radio interpulses from the Crab Nebula pulsar that feature never-before-seen radio emission spectra. This leads scientists ...
Black Hole Pumps Iron
Sep 14, 2009 |
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(PhysOrg.com) -- This composite image of the Hydra A galaxy cluster shows 10-million- degree gas observed by Chandra in blue and jets of radio emission observed by the Very Large Array in pink. Optical data ...
NASA Balloon Mission Tunes in to a Cosmic Radio Mystery
Space & Earth / Space Exploration
Jan 07, 2009 |
4.6 / 5 (17) |
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(PhysOrg.com) -- Listening to the early universe just got harder. A team led by Alan Kogut of NASA's Goddard Space Flight Center in Greenbelt, Md., today announced the discovery of cosmic radio noise that ...
Planetary scientists close in on Saturn’s elusive rotation
Dec 12, 2007 |
3.7 / 5 (15) |
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Somewhere deep below Saturn’s cloud tops, the planet rotates at a constant speed. Determining this interior period of rotation has proven extremely complicated. Now, with new Cassini results, a team of European ...
Continent-sized radio telescope takes close-ups of Fermi active galaxies
Apr 22, 2009 |
4.4 / 5 (5) |
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An international team of astronomers has used the world's biggest radio telescope to look deep into the brightest galaxies that NASA's Fermi Gamma-ray Space Telescope can see. The study solidifies the link ...
X-Ray Jets from Galaxies
Oct 19, 2009 |
4.5 / 5 (4) |
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(PhysOrg.com) -- Some dramatic galaxies eject gigantic, collimated jets of ionized gas millions of light-years long, powered by the massive black holes at their centers. The ionized jets are detected at radio ...
Most Distant Water in the Universe Found
Dec 17, 2008 |
4.8 / 5 (25) |
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(PhysOrg.com) -- Astronomers have found the most distant water yet seen in the Universe, in a galaxy more than 11 billion light-years from Earth. Previously, the most distant water had been seen in a galaxy ...
Making Massive Stars
Sep 15, 2009 |
4.3 / 5 (3) |
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(PhysOrg.com) -- Our understanding of star formation leans heavily on observations of stars like the sun, namely, those that are modest in mass and that are born and evolve at a relatively leisurely pace. ...
Cluster listens to the sounds of Earth
Jun 27, 2008 |
4.7 / 5 (9) |
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The first thing an alien race is likely to hear from Earth is chirps and whistles, a bit like R2-D2, the robot from Star Wars. In reality, they are the sounds that accompany the aurora. Now ESA's Cluster mission is showing ...
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