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A search for x-ray emission from rich clusters, extended halos around clusters, and superclusters
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Reichert, G. Pravdo, S. H. Boldt, E. A. McKee, J. Marshall, F. E. Mushotzky, R. F. Smith, B. W. |
| Copyright Year | 1979 |
| Description | The all-sky data base acquired with the HEAO A-2 experiment was searched for X-ray emission on a variety of metagalactic size scales which were either predicted or previously detected. Results in the 0.2-60 keV energy range are presented. The optically richest clusters, including those from which a microwave decrement were observed, appear to be relatively underluminous in X-rays. Observations of Abell 576 show its luminosity to be less than earlier estimates, and moreover less than the luminosity predicted from its microwave decrement, unless the intracluster gas is a factor of approximately 10 hotter than in typical clusters. Near SC0627 there are two X-ray sources, and the identification of the dominant source with SCO627 is probably incorrect. New spectral observations of Abell 401 and 2147, possible superclusters, reveal that they have typical cluster spectra with iron line emission. |
| File Size | 7821857 |
| Page Count | 37 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790019921 |
| Archival Resource Key | ark:/13960/t0vq7r804 |
| Language | English |
| Publisher Date | 1979-06-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Halos Heao 2 Luminosity Emission Line Spectra Star Clusters Graphs Charts X Ray Sources Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
