News tagged with radio emissions
Cosmic radio beacons
(PhysOrg.com) -- Because all cosmic objects evolve with time, astronomers sometimes have a difficult time deciding if two sources that seem different are actually related but just in different stages of life. ...
Nov 08, 2010 |
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Pushing the envelope
(PhysOrg.com) -- G327.1-1.1 is the aftermath of a massive star that exploded as a supernova in the Milky Way galaxy.
Oct 05, 2010 |
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X-Ray Jets
(PhysOrg.com) -- The supermassive black holes that lie at the centers of galaxies can spawn tremendous bipolar jets of atomic particles.
Sep 07, 2010 |
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Cluster collisions switch on radio halos
(PhysOrg.com) -- This is a composite image of the northern part of the galaxy cluster Abell 1758, located about 3.2 billion light years from Earth, showing the effects of a collision between two smaller galaxy ...
Aug 30, 2010 |
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Why are sunspots a source of radio emissions? Researcher explains more
Why sunspots are a strong source of radio emissions and what information those emissions carry will be the focus of an invited talk by NJIT Research Professor Jeongwoo Lee tomorrow at the International Astronomical ...
Aug 25, 2010 |
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Discovery of Saturn's auroral heartbeat
(PhysOrg.com) -- An international team of scientists led by Dr Jonathan Nichols of the University of Leicester has discovered that Saturn’s aurora, an ethereal ultraviolet glow which illuminates Saturn’s upper ...
Aug 04, 2010 |
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Image: Black Hole Blows Big Bubble
This composite image shows a powerful microquasar produced by a black hole in the outskirts of the nearby (12.7 million light years) galaxy NGC 7793. The large image contains data from the Chandra X-ray Observatory ...
Space & Earth / Space Exploration
Jul 12, 2010 |
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Have black holes been turning up the volume on the cosmic radio background?
(PhysOrg.com) -- Astronomers investigating why the cosmic background radiation is much brighter at radio wavelengths than expected have identified a potential culprit: fast spinning black holes early in the ...
Apr 14, 2010 |
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Scientists make first discovery using revolutionary long wavelength demonstrator array
Scientists from NRL's Space Science and Remote Sensing Divisions, in collaboration with researchers from the University of New Mexico and the National Radio Astronomy Observatory located in Socorro, N.M., ...
Aug 18, 2009 |
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Allen Telescope Array begins all-sky surveys
(PhysOrg.com) -- With commissioning of the 42 radio dishes of the Allen Telescope Array (ATA) nearly complete, UC Berkeley astronomers are now embarking on several major radio astronomy projects, including daily surveys of ...
May 28, 2009 |
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An Intriguing, Glowing Galaxy
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 ...
May 14, 2009 |
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