syedfaisal

December 31, 2007

Mysterious Cosmic Powerhouses Explored.

Filed under: exploration, physics — Tags: , , , , — syedfaisal @ 11:56 am

By working in synergy with a ground-based telescope array, the joint Japanese Aerospace Exploration Agency (JAXA)/NASA Suzaku X-ray observatory is shedding new light on some of the most energetic objects in our galaxy, but objects that remain shrouded in mystery.

MysteriousCosmicPH

These cosmic powerhouses pour out vast amounts of energy, and they accelerate particles to almost the speed of light. But very little is known about these sources because they were discovered only recently. “Understanding these objects is one of the most intriguing problems in astrophysics,” says Takayasu Anada of the Institute for Space and Astronautical Science in Kanagawa, Japan. Anada is lead author of a paper presented last week at a Suzaku science conference in San Diego, Calif.

These mysterious objects have been discovered in just the last few years by an array of four European-built telescopes named the High Energy Stereoscopic System (H.E.S.S.), located in the African nation of Namibia. H.E.S.S. indirectly detects very-high-energy gamma rays from outer space. These gamma rays are the highest-energy form of light ever detected from beyond Earth, so H.E.S.S. and other similar arrays have opened up a new branch of astronomy.

The gamma rays themselves are absorbed by gases high up in Earth’s atmosphere. But as the gamma rays interact with air molecules, they produce subatomic particles that radiate a blue-colored light known as Cherenkov radiation. H.E.S.S. detects this blue light, whose intensity and direction reveals the energy and position of the gamma-ray source.

Full Story:
http://www.sciencedaily.com/releases/2007/12/071220102247.htm

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1 Comment »

  1. How did u pick up the recommendations to compose ““Mysterious Cosmic Powerhouses Explored.
    | syedfaisal”? Thanks a lot ,Robbin

    Comment by Heather — October 26, 2013 @ 2:56 am


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