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Einstein Observatory

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Bragg crystal spectrometer

Overview page. Subjects: Astronomy and Astrophysics.

An instrument that uses a crystal to split X-rays according to energy, just as a prism splits visible light into the colours of the spectrum. It is named after the British physicist William...

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High-Energy Astronomy Observatory

Overview page. Subjects: Astronomy and Astrophysics.

(HEAO)

Any of three NASA satellites that observed the X-ray and gamma-ray sky. HEAO-1 was launched in August 1978 and functioned until January 1979 to provide almost constant...

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Riccardo Giacconi

Overview page. Subjects: Astronomy and Astrophysics.

(1931– )

Italian-Americanphysicist and pioneer of X-ray astronomy. In the 1950s he began to build rocket-borne X-ray telescopes. By this means in 1962 he and B. Rossi discovered...

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X-ray astronomy

Overview page. Subjects: Astronomy and Astrophysics.

The study of X-ray sources by rockets and balloons in the earth's atmosphere and by satellites beyond it. The first nonsolar X-ray source was detected during a rocket flight in 1962, and...

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