Explosions in the early universe
The results of detailed calculations of the evolution of explosions in the early universe are presented which describe the evolution of an explosion of arbitrary strength at any epoch in a variety of possible cosmological models. The calculations were performed using a spherically symmetric hydrodyn...
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| Veröffentlicht in: | Astrophys. J.; (United States) 1985-04, Vol.291 (2), p.399-416 |
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| container_end_page | 416 |
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| container_title | Astrophys. J.; (United States) |
| container_volume | 291 |
| creator | VISHNIAC, E. T OSTRIKER, J. P BERTSCHINGER, E |
| description | The results of detailed calculations of the evolution of explosions in the early universe are presented which describe the evolution of an explosion of arbitrary strength at any epoch in a variety of possible cosmological models. The calculations were performed using a spherically symmetric hydrodynamic computer code which included effects due to electron conductivity, radiative cooling, gravity, ion viscosity, and the difference between the electron and ion temperatures. The evolution of the explosions is discussed in terms of the quantities most clearly related to observable effects on the intergalactic medium. In all cases most of the matter passed by the shock is eventually swept up into relatively dense shells. For certain epochs and ranges of energy, nonradial instabilities can occur of either the Rayleigh-Taylor or the Jeans type, leading to the formation of dense fragments. |
| doi_str_mv | 10.1086/163079 |
| format | Article |
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P</creatorcontrib><creatorcontrib>BERTSCHINGER, E</creatorcontrib><creatorcontrib>Department of Astronomy, University of Texas</creatorcontrib><title>Explosions in the early universe</title><title>Astrophys. J.; (United States)</title><description>The results of detailed calculations of the evolution of explosions in the early universe are presented which describe the evolution of an explosion of arbitrary strength at any epoch in a variety of possible cosmological models. The calculations were performed using a spherically symmetric hydrodynamic computer code which included effects due to electron conductivity, radiative cooling, gravity, ion viscosity, and the difference between the electron and ion temperatures. The evolution of the explosions is discussed in terms of the quantities most clearly related to observable effects on the intergalactic medium. In all cases most of the matter passed by the shock is eventually swept up into relatively dense shells. For certain epochs and ranges of energy, nonradial instabilities can occur of either the Rayleigh-Taylor or the Jeans type, leading to the formation of dense fragments.</description><subject>640106 - Astrophysics & Cosmology- Cosmology</subject><subject>Astronomy</subject><subject>CHARGED PARTICLES</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COMPUTER CODES</subject><subject>COMPUTERIZED SIMULATION</subject><subject>COOLING</subject><subject>COSMIC RADIO SOURCES</subject><subject>COSMOLOGICAL MODELS</subject><subject>COSMOLOGY</subject><subject>Earth, ocean, space</subject><subject>ELECTRONS</subject><subject>ELEMENTARY PARTICLES</subject><subject>Exact sciences and technology</subject><subject>FERMIONS</subject><subject>FLUID MECHANICS</subject><subject>HYDRODYNAMICS</subject><subject>INTERGALACTIC SPACE</subject><subject>IONS</subject><subject>LEPTONS</subject><subject>MATHEMATICAL MODELS</subject><subject>MECHANICS</subject><subject>Origin and formation of the universe</subject><subject>PLASMA</subject><subject>QUASARS</subject><subject>RADIATIVE COOLING</subject><subject>RED SHIFT</subject><subject>SHOCK WAVES</subject><subject>SIMULATION</subject><subject>SPACE</subject><subject>Stellar systems. 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P</au><au>BERTSCHINGER, E</au><aucorp>Department of Astronomy, University of Texas</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Explosions in the early universe</atitle><jtitle>Astrophys. J.; (United States)</jtitle><date>1985-04-15</date><risdate>1985</risdate><volume>291</volume><issue>2</issue><spage>399</spage><epage>416</epage><pages>399-416</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>The results of detailed calculations of the evolution of explosions in the early universe are presented which describe the evolution of an explosion of arbitrary strength at any epoch in a variety of possible cosmological models. The calculations were performed using a spherically symmetric hydrodynamic computer code which included effects due to electron conductivity, radiative cooling, gravity, ion viscosity, and the difference between the electron and ion temperatures. The evolution of the explosions is discussed in terms of the quantities most clearly related to observable effects on the intergalactic medium. In all cases most of the matter passed by the shock is eventually swept up into relatively dense shells. For certain epochs and ranges of energy, nonradial instabilities can occur of either the Rayleigh-Taylor or the Jeans type, leading to the formation of dense fragments.</abstract><cop>Chicago, IL</cop><pub>University of Chicago Press</pub><doi>10.1086/163079</doi><tpages>18</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | Astrophys. J.; (United States), 1985-04, Vol.291 (2), p.399-416 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_23962496 |
| source | Alma/SFX Local Collection |
| subjects | 640106 - Astrophysics & Cosmology- Cosmology Astronomy CHARGED PARTICLES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COMPUTER CODES COMPUTERIZED SIMULATION COOLING COSMIC RADIO SOURCES COSMOLOGICAL MODELS COSMOLOGY Earth, ocean, space ELECTRONS ELEMENTARY PARTICLES Exact sciences and technology FERMIONS FLUID MECHANICS HYDRODYNAMICS INTERGALACTIC SPACE IONS LEPTONS MATHEMATICAL MODELS MECHANICS Origin and formation of the universe PLASMA QUASARS RADIATIVE COOLING RED SHIFT SHOCK WAVES SIMULATION SPACE Stellar systems. Galactic and extragalactic objects and systems. The universe UNIVERSE VISCOSITY |
| title | Explosions in the early universe |
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