Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992eocm.rept..177a&link_type=abstract
In ESA, Environment Observation and Climate Modelling Through International Space Projects. Space Sciences with Particular Empha
Astronomy and Astrophysics
Astrophysics
Galactic Clusters, Stellar Spectra, Stellar Temperature, X Ray Spectra, Astronomical Satellites, Cosmic Gases, Cosmology, Data Processing, Japanese Spacecraft, Stellar Mass
Scientific paper
The x-ray spectrum of the distant galaxy cluster A2163 (z = 0.203) was measured in the energy range 1 to 18 keV with the Ginga satellite. A combined analysis of these data with data previously obtained with the Einstein observatory is presented. The temperature and x-ray luminosity derived are exceptionally high compared to other clusters: kT = 13.9 keV, LX(2 to 10 keV) 6.3 x 1045 ergs/s, as well as the gas mass 9 x 1014 solar mass and binding mass 27 x 1014 solar mass. The implications of the existence of such a cluster for cosmological models of the formation of structure in the universe are discussed.
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