News tagged with radio emission

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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 4.3 / 5 (3) 6 | with audio podcast

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 not rated yet 1 | with audio podcast

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 5 / 5 (2) 8 | with audio podcast

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 5 / 5 (3) 1 | with audio podcast

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 4.6 / 5 (8) 1