News tagged with radio emission

Related topics:

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 ...

dateOct 31, 2011 in Astronomy
shares0 comments 8

'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 ...

dateJun 29, 2011 in Astronomy
shares0 comments 3

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 ...

dateMay 23, 2011 in Astronomy
shares0 comments 15

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. ...

dateNov 08, 2010 in Astronomy
shares0 comments 1

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.

dateOct 05, 2010 in Astronomy
shares0 comments 1

X-Ray Jets

(PhysOrg.com) -- The supermassive black holes that lie at the centers of galaxies can spawn tremendous bipolar jets of atomic particles.

dateSep 07, 2010 in Astronomy
shares0 comments 1

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 ...

dateAug 30, 2010 in Astronomy
shares0 comments 0

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 ...

dateAug 04, 2010 in Astronomy
shares0 comments 2

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 ...

dateJul 12, 2010 in Space Exploration
shares0 comments 4