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Blob
2006-Mar-21, 12:47 PM
Old news, but New Scientist is reporting that new results from Europe's Integral gamma-ray observatory have confirmed that high-energy radiation is 20% more abundant, bringing it into line with what theoreticians predicted.

NASA's High Energy Astrophysics Observatory-1 first measured the `cosmic low-energy background` in the late 1970s. The X-rays and gamma ray radiation were thought to come from very distant, supermassive black holes.

The Integral Earth-orbiting space observatory which normally points out into space, was rotated around in January and February 2006 to observe the Earth. As the Earth shielded the satellite from the high-energy background radiation, scientists were able to calibrate the instruments and derive the new results.

"Preliminary analysis indicates we see around 20% more radiation, which is very interesting" - Arvind Parmar, Integral mission manager.

ESA’s XMM-Newton satellite and NASA’s Chandra X-ray Observatory have already confirmed that individual sources are responsible for about 80% of the X-ray background at low energies.

The INTEGRAL (INTErnational Gamma-Ray Astrophysics Laboratory) satellite is an astronomical satellite for observing the gamma-ray sky, and was launched on October 17, 2002 by a Russian PROTON launcher.

Source (http://www.newscientistspace.com/article.ns?id=dn8873)

Fr. Wayne
2006-Mar-22, 03:42 AM
I am curious how they didn't capture moon or sun in those 10 straight hours of earth direction. Maybe the digital image is just a snap shot of one reading where the other spheres had least effect. Article is tantalizing but not very revealing.

Launch window
2006-Mar-22, 01:24 PM
Real-time GRBs from Swift, Hete-II, and Integral
http://grb.sonoma.edu/

Fr. Wayne
2006-Mar-23, 06:33 AM
A Truly wild vision worthy of saving. Thanks LW, it's like looking out to sea and spotting the lighthouses on distant coasts. Very Kewl.