Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...364....1p&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 364, Nov. 20, 1990, p. 1-6.
Astronomy and Astrophysics
Astronomy
21
Galactic Clusters, X Ray Astronomy, Active Galaxies, Emission Spectra, Heao 2, High Temperature Gases
Scientific paper
The Batuski-Burns list of candidate superclusters was searched for X-ray emission in the HEAO 1 A-2 data base. No significant flux in excess of integrated member cluster emission was detected in directions associated with estimated supercluster centroids; a 3 sigma upper limit to the mean individual excess flux is 5 x 10 to the -12th ergs/sq cm/s. Implications of this bound are discussed in terms of fainter member clusters, hot diffuse gas, and active and normal galaxies. Prospects of supercluster observations related to future X-ray missions are also outlined.
Boldt Elihu
Jahoda Keith
Marshall Francis E.
Mushotzky Richard F.
Persic Massimo
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