| Astrophysical Jets and Their Engines Softcover Repri Edition Contributor(s): Kundt, Wolfgang (Editor) |
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ISBN: 9401082421 ISBN-13: 9789401082426 Publisher: Springer OUR PRICE: $161.49 Product Type: Paperback - Other Formats Published: October 2011 |
| Additional Information |
| BISAC Categories: - Science | Physics - Astrophysics - Science | Astronomy |
| Dewey: 523.01 |
| Series: NATO Science Series C: |
| Physical Information: 0.57" H x 6.14" W x 9.21" (0.85 lbs) 256 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: 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. |