Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981nyasa.375..210g&link_type=abstract
(AAS, American Physical Society, NASA, et al., Texas Symposium on Relativistic Astrophysics, 10th, Baltimore, MD, Dec. 15-19, 19
Astronomy and Astrophysics
Astronomy
Extraterrestrial Radiation, Galactic Clusters, Heao 2, X Ray Astronomy, X Ray Sources, Brightness Temperature, High Resolution, Luminous Intensity, Temperature Distribution
Scientific paper
The flight of the Einstein X-ray Observatory has brought about a qualitative change in observational capabilities in the 0.2-3.0 keV energy range, with a several hundred-fold increase in sensitivity over previous instruments that allows the detection and study of X-rays from objects as distant as quasars, at redshifts greater than 3.0. Attention is given to the progress that has been made in relating X-ray luminosity to such other properties of clusters of galaxies as morphological classification, central galaxy density, and spiral fractions. The high resolution 2.6 arcsec over 20 arcmin, and medium resolution 1.5 arcmin over 75 arcmin imaging detectors on Einstein have permitted detailed study of large and small scale structures, accurate brightness profiles, and approximate temperature distributions of clusters, as well as the investigation of individual galaxy interaction with the intracluster medium.
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