News tagged with radio emission

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Scientists discover radio emissions from fireballs

(Phys.org) —Streaking across the sky at more than 50 kilometers per second at atmospheric heights of more than a 90 kilometers high, researchers using the first station of University of New Mexico's Long ...

Jul 08, 2014
4.7 / 5 (24) 9

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
5 / 5 (21) 5 | with audio podcast

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
4.4 / 5 (21) 1

Chameleon pulsar baffles astronomers

A pulsar that is able, without warning, to dramatically change the way in which it shines has been identified by an international team of astronomers.

Jan 24, 2013
4.8 / 5 (19) 25 | with audio podcast

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
4.3 / 5 (16) 15 | with audio podcast

Our galaxy's 'geysers' are towers of power

"Monster" outflows of charged particles from the centre of our Galaxy, stretching more than halfway across the sky, have been detected and mapped with CSIRO's 64-m Parkes radio telescope. Corresponding to ...

Jan 02, 2013
4.1 / 5 (15) 61 | with audio podcast

Astronomers discover a new black hole in our galaxy

(Phys.org)—NASA's Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy. The outburst, produced by a rare X-ray nova, announced the ...

Oct 05, 2012
4.5 / 5 (13) 14 | with audio podcast

A new class of extragalactic objects

A blazar is a galaxy with an intensely bright central nucleus containing a supermassive black hole, much like a quasar. The difference is that a blazar can emit light with extremely high energy gamma rays ...

Oct 29, 2012
3.9 / 5 (14) 1 | with audio podcast