The evolution of cluster X-ray sources
The evolutionary behavior over cosmological time scales of hot intracluster gas in rich clusters of galaxies is examined with a spherically symmetric hydrodynamical code, for the important case of a time-dependent cluster gravitational potential. Both infall of primordial matter and ejection of meta...
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| Veröffentlicht in: | Astrophys. J.; (United States) 1978-12, Vol.226, p.566 |
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| container_title | Astrophys. J.; (United States) |
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| creator | Perrenod, S. C. |
| description | The evolutionary behavior over cosmological time scales of hot intracluster gas in rich clusters of galaxies is examined with a spherically symmetric hydrodynamical code, for the important case of a time-dependent cluster gravitational potential. Both infall of primordial matter and ejection of metal-enriched galactic material are considered. Cluster X-ray properties as a function of redshift are predicted, and the results are compared to observations of low-redshift clusters. The effects of evolution are strong; for example, cluster X-ray luminosities increase by about a factor of 10 from the epoch with redshift z=1 until the present. It is shown that the effects of evolution dominate in any cosmological test with X-ray clusters. |
| doi_str_mv | 10.1086/156641 |
| format | Article |
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C.</creatorcontrib><creatorcontrib>Harvard-Smithsonian Center for Astrophysics, and Department of Physics, University of Illinois at Urbana-Champaign</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Astrophys. J.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Perrenod, S. C.</au><aucorp>Harvard-Smithsonian Center for Astrophysics, and Department of Physics, University of Illinois at Urbana-Champaign</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The evolution of cluster X-ray sources</atitle><jtitle>Astrophys. J.; (United States)</jtitle><date>1978-12-01</date><risdate>1978</risdate><volume>226</volume><spage>566</spage><pages>566-</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>The evolutionary behavior over cosmological time scales of hot intracluster gas in rich clusters of galaxies is examined with a spherically symmetric hydrodynamical code, for the important case of a time-dependent cluster gravitational potential. Both infall of primordial matter and ejection of metal-enriched galactic material are considered. Cluster X-ray properties as a function of redshift are predicted, and the results are compared to observations of low-redshift clusters. The effects of evolution are strong; for example, cluster X-ray luminosities increase by about a factor of 10 from the epoch with redshift z=1 until the present. It is shown that the effects of evolution dominate in any cosmological test with X-ray clusters.</abstract><cop>United States</cop><doi>10.1086/156641</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | Astrophys. J.; (United States), 1978-12, Vol.226, p.566 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_crossref_primary_10_1086_156641 |
| source | Alma/SFX Local Collection |
| subjects | 640105 - Astrophysics & Cosmology- Galaxies BREMSSTRAHLUNG CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COSMIC GASES COSMIC RAY SOURCES COSMIC X-RAY SOURCES COSMOLOGY ELECTROMAGNETIC RADIATION FLUID MECHANICS FLUIDS FUNDAMENTAL CONSTANTS GALACTIC EVOLUTION GALAXY CLUSTERS GASES GRAVITATION HYDRODYNAMICS INTERGALACTIC SPACE LUMINOSITY MECHANICS OPTICAL PROPERTIES PHYSICAL PROPERTIES RADIATIONS RED SHIFT SPACE THERMAL CONDUCTIVITY THERMODYNAMIC PROPERTIES |
| title | The evolution of cluster X-ray sources |
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