News tagged with radio emissions
ALMA turns its eyes to Centaurus A
(Phys.org) -- A new image of the galaxy Centaurus A, made with the Atacama Large Millimeter/submillimeter Array (ALMA), shows how the observatory allows astronomers to see through the opaque dust lanes that ...
May 31, 2012 |
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Astrophysicists discover new heating source in cosmological structure formation
(Phys.org) -- So far, astrophysicists thought that super-massive black holes can only influence their immediate surroundings. A collaboration of scientists at the Heidelberg Institute for Theoretical Studies ...
May 15, 2012 |
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Three-telescope interferometry allows astrophysicists to observe how black holes are fueled
(Phys.org) -- By combining the light of three powerful infrared telescopes, an international research team has observed the active accretion phase of a supermassive black hole in the center of a galaxy tens ...
May 16, 2012 |
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Black holes spinning faster than ever before
(PhysOrg.com) -- Two UK astronomers have found that the giant black holes in the centre of galaxies are on average spinning faster than at any time in the history of the Universe. Dr Alejo Martinez-Sansigre ...
May 23, 2011 |
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Record-breaking radio waves discovered from ultra-cool star
Penn State University astronomers using the world's largest radio telescope, at Arecibo, Puerto Rico, have discovered flaring radio emission from an ultra-cool star, not much warmer than the planet Jupiter, ...
Apr 30, 2012 |
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'Odd couple' binary makes dual gamma-ray flares
(PhysOrg.com) -- In December 2010, a pair of mismatched stars in the southern constellation Crux whisked past each other at a distance closer than Venus orbits the sun. The system possesses a so-far unique ...
Jun 29, 2011 |
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Biggest solar storm in years races toward Earth (Update 2)
The largest solar storm in five years was due to arrive on Earth early Thursday, promising to shake the globe's magnetic field while expanding the Northern Lights.
Space & Earth / Space Exploration
Mar 07, 2012 |
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Hot molecule explains cold chemistry
(PhysOrg.com) -- Surprisingly, hydrogen cyanide and its far more energetic isomer, hydrogen isocyanide, are present in almost equal amounts in cold interstellar gas clouds. Scientists from the Max Planck Institute ...
Jan 30, 2012 |
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Astronomers detect coolest radio star
(Phys.org) -- Astronomers using the world's largest radio telescope, at Arecibo, Puerto Rico, have discovered flaring radio emission from an ultra-cool star, not much warmer than the planet Jupiter, shattering the previous ...
Apr 18, 2012 |
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The high energy crab
(PhysOrg.com) -- The Crab Nebula is the remnant of a supernova. Its precursor star exploded in 1054 AD in an event that was recorded by Chinese and (quite probably) Anasazi Indian astronomers. It is called ...
Oct 31, 2011 |
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An atlas of the Milky Way
Sino-German research group draws a new map at the Urumqi radio telescope and discovers two supernova remnants.
Aug 30, 2011 |
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The birth of a telescope 30 times larger than Earth
(PhysOrg.com) -- On 15 November 2011, the Effelsberg 100-meter radio telescope, together with three Russian and one Ukrainian telescope, took part in the first interferometric observations with the orbiting ...
Dec 08, 2011 |
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Astronomers can tune in to radio auroras to find exoplanets
(PhysOrg.com) -- Detecting exoplanets that orbit at large distances from their star remains a challenge for planet hunters. Now, scientists at the University of Leicester have shown that emissions from the ...
Apr 19, 2011 |
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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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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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