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An x-ray red-shift test for clusters of galaxies up to z greater than or equal to 1
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Boldt, E. A. |
| Copyright Year | 1976 |
| Description | Correlated measurements of red-shifted iron line emission and apparent surface brightness are suggested for unambiguously defining intrinsic X-ray characteristics for clusters of galaxies up to z greater than or equal to 1. If some of the weak unidentified high galactic latitude X-ray sources are clusters at z approximately 1-3, then such correlated measurements should be feasible witin 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). |
| File Size | 1423317 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760017021 |
| Archival Resource Key | ark:/13960/t2r54dp48 |
| Language | English |
| Publisher Date | 1976-04-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Galactic Clusters Red Shift Emission Spectra Spectrum Analysis Heao X Ray Spectra Sky Surveys Astronomy Line Spectra X Ray Sources X Ray Telescopes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
