Astrophysical Jets and Their Engines

Astrophysical Jets and Their Engines PDF Author: Wolfgang Kundt
Publisher: Springer Science & Business Media
ISBN: 9400939272
Category : Science
Languages : en
Pages : 265

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Book 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.

Astrophysical Jets and Their Engines

Astrophysical Jets and Their Engines PDF Author: Wolfgang Kundt
Publisher: Springer Science & Business Media
ISBN: 9400939272
Category : Science
Languages : en
Pages : 265

Get Book Here

Book 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.

Nanotechnology for Cancer Therapy

Nanotechnology for Cancer Therapy PDF Author: Mansoor M. Amiji
Publisher: CRC Press
ISBN: 1000654680
Category : Medical
Languages : en
Pages : 808

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Book Description
While simultaneous breakthroughs occurring in molecular biology and nanoscience/technology will ultimately revolutionize all of medicine, it is with our efforts to prevent, diagnose, and treat cancer that many of the most dramatic advances will occur. In support of this potential, the U.S. National Cancer Institute (NCI) established the Alliance fo

A General Catalogue of Nebulae and Clusters of Stars

A General Catalogue of Nebulae and Clusters of Stars PDF Author: Herschel
Publisher:
ISBN:
Category :
Languages : en
Pages : 156

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Book Description


Massive Stars as Cosmic Engines (IAU S250)

Massive Stars as Cosmic Engines (IAU S250) PDF Author: International Astronomical Union. Symposium
Publisher: Cambridge University Press
ISBN: 9780521874724
Category : Science
Languages : en
Pages : 616

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Book Description
Reviews our current understanding of the life, evolution and death of massive stars; for researchers and graduate students.

Circular

Circular PDF Author:
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 432

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Book Description


A General Catalogue of Nebulæ and Clusters of Stars

A General Catalogue of Nebulæ and Clusters of Stars PDF Author: John Frederick William Herschel
Publisher:
ISBN:
Category : Nebulae
Languages : en
Pages : 148

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Scientific Transactions

Scientific Transactions PDF Author: Royal Dublin Society
Publisher:
ISBN:
Category :
Languages : en
Pages : 1060

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Memoirs of the Royal Astronomical Society

Memoirs of the Royal Astronomical Society PDF Author: Royal Astronomical Society
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 530

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Memoirs

Memoirs PDF Author: Royal Astronomical Society
Publisher:
ISBN:
Category :
Languages : en
Pages : 340

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Book Description


The Incarnator (Project Stellar Book 1)

The Incarnator (Project Stellar Book 1) PDF Author: Roman Prokofiev
Publisher:
ISBN: 9788076191501
Category :
Languages : en
Pages : 564

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Book Description
Read opening chapters here - http: //magicdomebooks.blogspot.com/2019/11/project-stellar-by-roman-prokofiev.html When the shattered fragments of the Black Moon collapsed onto planet Earth, splitting continents apart and flooding them with raging oceans, Darkness descended onto our world. The eruptions of hostile energy from behind the Edge distorted the laws of the physical world, creating new life forms which now threaten to take over the planet. The last remaining vestiges of humankind, too desperate for their own survival, have nothing to offer against their advance. So it's time to activate Incarnation: the last instruction issued by Project Stellar. In a situation when there're not enough living beings to protect planet Earth, the dead fighters will have to rejoin the defenders' ranks.