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Books > Science & Mathematics > Physics > Applied physics & special topics > Astrophysics
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Astrophysical Jets and Their Engines (Paperback, Softcover reprint of the original 1st ed. 1987)
Loot Price: R4,554
Discovery Miles 45 540
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Astrophysical Jets and Their Engines (Paperback, Softcover reprint of the original 1st ed. 1987)
Series: NATO Science Series C, 208
Expected to ship within 10 - 15 working days
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Total price: R4,574
Discovery Miles: 45 740
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This volume is the documentation of the first Course on 'Neutron
Stars, Active Galactic Nuclei and Jets', of an Erice School with a
wide astro physical scope. The choice of the subject was made
because of an apparent similari ty - stressed already at earlier
meetings - of four classes of astrophy sical jet sources: Active
Galactic Nuclei, Young Stellar Objects, Binary Neutron Stars and
Binary White Dwarfs. They share important properties such as their
morphology, high variability and large veloci ty gradients as well
as - with some inference - their broad spectrum, hypersonic outflow
and core/lobe power ratio. Despite this apparent similarity of the
four source classes, quite different models have been put forward
for their description: (i) The central engine of active galactic
nuclei has been generally thought to be a black hole, in contrast
to the central engine of young stellar objects and cometary nebulae
which apparently is a pre-T-Tauri star, some six orders of
magnitude less compact, and to the central engine of planetary
nebulae which mayor may not be a binary white dwarf. (ii) The
elongated lobes, or flow patterns, have been often interpreted as
highly directional stellar wind outflows whereas in a few well
mapped cases, the elongated flow appears to be 'pumped up' through
a much narrower channel, or jet, both in the extragalactic and
stellar sources.
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