An X-ray redshift measure for clusters of galaxies up to Z not less than 1

Details An X-ray redshift measure for clusters of galaxies up to Z not less than 1 An X-ray redshift measure for clusters of galaxies up to Z not less than 1

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...208l..15b&link_type=abstract

Astrophysical Journal, vol. 208, Aug. 15, 1976, pt. 2, p. L15, L16.

Astronomy and Astrophysics

Astronomy

6

Galactic Clusters, Galactic Radiation, Red Shift, X Ray Astronomy, X Ray Spectra, Brightness Temperature, Heao, Sky Surveys (Astronomy), Spectrum Analysis, X Ray Sources

Scientific paper

Correlated measurements of redshifted iron line emission and apparent surface brightness are suggested for unambiguously defining intrinsic X-ray characteristics for clusters of galaxies up to z not less than 1. If some of the weak unidentified high-galactic-latitude X-ray sources are clusters at z roughly equal to 1-3, then such correlated measurements should be feasible within the complement of instruments aboard the HEAO-B orbiting X-ray telescope observatory. In addition, those clusters at z less than 1 would require spectral data from broader bandwidth experiments, such as the all-sky survey to be provided by the proportional counters aboard the first mission of the High Energy Astronomy Observatory (HEAO-A).

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