A possible hydrodynamical equivalence for astrophysical jets
The idea of a unified model for quasars and μ-quasars has been considered for a long time, despite the different environments and physical conditions where both classes of objects reside. Here we show the existence of a simple scaling law, relating the maximum size of a jet to the properties of the gas medium into which it expands. This appears to be valid for all types of hydrodynamical jets, and can be thought of as a broad unified model. The expansion velocity of the jet and the physical properties of the surrounding gas combine in such a way that a limit to the maximum extent of jets at different scales can be obtained.
Main Authors: | , , |
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Format: | Digital revista |
Language: | English |
Published: |
Universidad Nacional Autónoma de México, Instituto de Astronomía
2005
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Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-11012005000200010 |
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Summary: | The idea of a unified model for quasars and μ-quasars has been considered for a long time, despite the different environments and physical conditions where both classes of objects reside. Here we show the existence of a simple scaling law, relating the maximum size of a jet to the properties of the gas medium into which it expands. This appears to be valid for all types of hydrodynamical jets, and can be thought of as a broad unified model. The expansion velocity of the jet and the physical properties of the surrounding gas combine in such a way that a limit to the maximum extent of jets at different scales can be obtained. |
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