Published September 1976
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X-radiation from clusters of galaxies: spectral evidence for a hot evolved gas
Description
OSO-8 observations of the x-ray flux in the range 2--60 keV from the Virgo, Perseus, and Coma Clusters provide strong evidence for the thermal origin of the radiation, including iron line emission. The data are adequately described by emission from an isothermal plasma with an iron abundance in near agreement with cosmic levels. A power law description is generally less acceptable and is ruled out in the case of Perseus. Implications on the origin of the cluster gas are discussed
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.
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Additional details
Additional titles
- Augmented title (English)
- 2 to 60keV
Publishing Information
- Imprint Pagination
- 12 p.
- Report number
- N--76--32095
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 8326727
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- COSMIC GASES; GALAXY CLUSTERS; IRON; KEV RANGE 01-10; KEV RANGE 10-100; ORIGIN; X RADIATION; X-RAY SPECTRA
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; ELEMENTS; ENERGY RANGE; FLUIDS; GASES; IONIZING RADIATIONS; KEV RANGE; METALS; RADIATIONS; SPECTRA; TRANSITION ELEMENTS
Optional Information
- Secondary number(s)
- NASA-TM-X--71189; X--611-76-205.