periodic oscillation

XMM-Newton uncovers well-tuned periodic signal from a super-massive black hole


September 19th, 2008 - 2:50 pm ICT by ANI
Paris, September 19 (ANI): XMM-Newton has uncovered a well-tuned periodic signal from a super-massive black hole lodged at the centre of a galaxy, ending a long quest for such an object.These ... Read more...

Posted in National |

NASA satellite pins down timer in ’stellar bomb’


May 1st, 2008 - 2:20 pm ICT by admin
Washington, May 1 (IANS) A NASA satellite helped astronomers pin down the timing mechanism in a ticking "stellar bomb" some 20,000 light years away. The twin-neutron star, designated as 4U 1636-53, produces ... Read more...

Posted in World |

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