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单词 Giacconi, Riccardo (1931–2018)
释义
Giacconi, Riccardo (1931–2018)

Astronomy
  • In the 1950s he began to build rocket-borne X-ray telescopes. By this means in 1962 he and B. Rossi discovered Scorpius X-1, the first known cosmic X-ray source. Whether as designer, builder, or director, Giacconi was associated with most of the major X-ray astronomy missions, including Uhuru, the Einstein Observatory, and the Chandra X-ray Observatory. For this work he was awarded a share of the 2002 Nobel Prize in Physics.


Space Exploration
  • Italian-born US physicist whose work was fundamental in the development of X-ray astronomy. In 1962 a rocket sent up by Giacconi and his group to observe secondary spectral emission (see spectrum) from the Moon detected strong X-rays from a source evidently located outside the Solar System. X-ray research has since led to the discovery of many types of stellar and interstellar material. Giacconi and his team developed a telescope capable of producing X-ray images. In 1970 they launched a satellite called Uhuru, devoted entirely to the detection of stellar and interstellar X-rays. In 1981 he became the first director of the Space Telescope Science Institute and from 1993 to 1999 was director general of the European Southern Observatory. He was awarded the Nobel Prize for Physics in 2002 for his discovery of cosmic X-ray sources.


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