Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sci...209..865g&link_type=abstract
Science, vol. 209, Aug. 22, 1980, p. 865-876.
Astronomy and Astrophysics
Astronomy
5
Astronomical Observatories, Radio Astronomy, X Ray Astronomy, Active Galactic Nuclei, Galactic Clusters, Galactic Radiation, Grazing Incidence, Grazing Incidence Telescopes, High Energy Interactions, Image Resolution, Interstellar Radiation, Quasars, Stellar Radiation, Stellar Systems, Supernova Remnants
Scientific paper
The impact of high-resolution, high-sensitivity X-ray measurements obtained by the Einstein Observatory (HEAO-2) on various areas of astronomical research is discussed. Following a review of the Einstein instruments based on grazing incidence focusing X-ray optics, including the telescope, imaging detectors and spectrometers, consideration is given to observations of X-ray emission from stellar systems, galaxies, and clusters of galaxies. Einstein results concerning the X-ray luminosities of young O, B and A stars and late K and M stars, the temperature, composition and distribution of material ejected in supernova explosions and comprising the interstellar medium, the formation and evolution of stellar systems and galaxies, the energy source of quasars and active galactic nuclei and the mass distribution in galactic clusters are indicated. Substantial progress made possible by the high-resolution observations of the diffuse X-ray background in cosmological research is also noted.
Giacconi Ricardo
Tananbaum Harvey
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