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Scientists find gamma ray clock

Posted on Sunday, December 03 2006 @ 07:30:24 CET by

Astronomers found the very first gamma ray clock in the region of LS5039.
The signal comes from a system called LS 5039 which was discovered by the H.E.S.S. team in 2005. LS5039 is a binary system formed of a massive blue star (20 times the mass of the Sun) and an unknown object, possibly a black hole. The two objects orbit each other at very short distance, varying between only 1/5 and 2/5 of the separation of the Earth from the Sun, with one orbit completed every four days.

“The way in which the gamma ray signal varies makes LS5039 a unique laboratory for studying particle acceleration near compact objects such as black holes.” Explained Dr Paula Chadwick from the University of Durham, a British team member of H.E.S.S.
More info can be read at PhysOrg.



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