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Name: Leigh Powers 
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: 1993 - 1999

My name is Leigh Powers and I am writing a research paper on the Hubble Space telescope. I would like to know any details about how scientists might use the HST to search for black holes.

Basically, astronomers hope to detect the radiation that is emitted when matter falls into a black hole. This is supposed to happen via a so-called accretion disk. (try looking that up in your library) In particular, a tell-tale black hole signature would be a strong electron-positron annihilation line at 1022 KeV probably gravitationally red-shifted.

John Hawley

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