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Author :
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.:/5 (931 download)
Download or read book Modelling of Protostellar Jets Using Intense Lasers written by and published by . This book was released on 2010 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kanaris Tsinganos
Publisher : Springer Science & Business Media
ISBN 13 : 3642005764
Total Pages : 662 pages
Book Rating : 4.6/5 (42 download)
Download or read book Protostellar Jets in Context written by Kanaris Tsinganos and published by Springer Science & Business Media. This book was released on 2009-09-24 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is over a quarter of a century since the discovery of out?ows from young stars. The intervening years have led to remarkable advances in our understanding of this phenomenon. Much of the progress can be attributed to advances in facilities and technologies, including not only larger telescopes but also improved instrument and detector performance. In addition protostellar out?ows have now been imaged from the ground and space at high spatial resolution, e. g. with HST, and at a wide - riety of wavelengths from X-rays to radio waves, revealing more and more about their physics. This veritable revolution in observation has been accompanied by an exponential growth in our ability to numerically simulate the launching and pro- gation of jets. Codes continue to improve: they now incorporate more physics and are increasingly ef?cient through, for example, techniques such as adaptive mesh re?nement and the use of parallel processing in cluster environments. Simulating the launching and propagation of a jet all the way from the vicinity of the star up to 4 several thousand AU (a size range of10 ) is now much closer. In more recent times, developments in observation, theory and numerical s- ulation have been joined by laboratory jet experiments reproducing, on centimetre scales, that which is seen in astrophysics to stretch for several parsecs.
Author : Jonathan Ferreira
Publisher : Springer
ISBN 13 : 9783540833734
Total Pages : 228 pages
Book Rating : 4.8/5 (337 download)
Download or read book Jets from Young Stars written by Jonathan Ferreira and published by Springer. This book was released on 2009-09-02 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the edited lecture notes of the First JETSET School on Jets from Young Stars: Models and Constraints, held by the Marie Curie Research and Training Network on JET Simulations, Experiments and Theory. The first half of the book is devoted to general observational constraints. The second section is devoted to theoretical knowledge of magneto-hydrodynamic processes pertinent to the jet launching mechanism in young stars.
Author : Jonathan Ferreira
Publisher : Springer
ISBN 13 : 3540680357
Total Pages : 230 pages
Book Rating : 4.5/5 (46 download)
Download or read book Jets from Young Stars written by Jonathan Ferreira and published by Springer. This book was released on 2007-08-30 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the edited lecture notes of the First JETSET School on Jets from Young Stars: Models and Constraints, held by the Marie Curie Research and Training Network on JET Simulations, Experiments and Theory. The first half of the book is devoted to general observational constraints. The second section is devoted to theoretical knowledge of magneto-hydrodynamic processes pertinent to the jet launching mechanism in young stars.
Author : A.J.L. Fernandes
Publisher : Springer Science & Business Media
ISBN 13 : 9400709994
Total Pages : 272 pages
Book Rating : 4.4/5 (7 download)
Download or read book Jets in Young Stellar Objects written by A.J.L. Fernandes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: A JENAM 2002 Workshop, Porto, Portugal, 3-5 September 2002
Author : R. Paul Drake
Publisher : Springer Science & Business Media
ISBN 13 : 3540293159
Total Pages : 542 pages
Book Rating : 4.5/5 (42 download)
Download or read book High-Energy-Density Physics written by R. Paul Drake and published by Springer Science & Business Media. This book was released on 2006-08-31 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has two goals. One goal is to provide a means for those new to high-energy-density physics to gain a broad foundation from one text. The second goal is to provide a useful working reference for those in the ?eld. This book has at least four possible applications in an academic c- text. It can be used for training in high-energy-density physics, in support of the growing number of university and laboratory research groups working in this area. It also can be used by schools with an emphasis on ultrafast lasers, to provide some introduction to issues present in all laser–target - perimentswithhigh-powerlasers,andwiththoroughcoverageofthematerial in Chap. 11 on relativistic systems. In addition, it could be used by physics, applied physics, or engineering departments to provide in a single course an introduction to the basics of ?uid mechanics and radiative transfer, with d- matic applications. Finally, it could be used by astrophysics departments for a similar purpose, with the parallel bene?t of training the students in the similarities and di?erences between laboratory and astrophysical systems. The notation in this text is deliberately sparse and when possible a given symbol has only one meaning. A de?nition of the symbols used is given in Appendix A. In various cases, additional subscripts are added to distinguish among cases of the same quantity, as for example in the use of ? and ? 1 2 to distinguish the mass density in two di?erent regions.
Author : Christophe Sauty
Publisher : Springer
ISBN 13 : 3030141284
Total Pages : 154 pages
Book Rating : 4.0/5 (31 download)
Download or read book JET Simulations, Experiments, and Theory written by Christophe Sauty and published by Springer. This book was released on 2019-08-02 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2008, the European FP6 JETSET project ended. JETSET, for Jet, Simulations, Experiments, and Theory, was a joint research network of European expert teams on protostellar jets. The present proceedings are a collection of contributions presenting new results obtained by those groups since the end of the JETSET program. This is also the occasion to celebrate Kanaris Tsinganos’ important contributions to this network and for his enlightening insight in the subject that inspired us all. Some of the former JETSET students are now in the academic world and the subject has never been so alive. So we present here a collection of results of what has been done in the field of protostellar jets in the past ten years from the theoretical, numerical, observational and experimental point of view. We also present new challenges in the field of protostellar jets and what we should expect from the development of new instruments and new numerical codes in the near future. We also gather results on the impact of the study of protostellar jets on other jet studies in particular on relativistic jets. As a matter of fact, it is time for a new network.
Author : S. Ustamujic
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (18 download)
Download or read book Numerical Simulations of Protostellar Jets written by S. Ustamujic and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The exploration of the physics of accretion and outflows in young stars is one of the main objectives of the World Space Observatory ¿ Ultraviolet (WSO-UV) project. Jets are a fundamental part of the formation and evolution processes of young stars, participating in the loss of mass and angular momentum from the whole system. They are detected in different wavelength bands and are ubiquitous at the earliest stages of star formation. However, many questions about the origin and feedback of protostellar jets remain unanswered. In this context, the study of high-energetic phenomena emitting in the extreme ultraviolet (EUV) and X-rays is fundamental as they could have a relevant role in ionizing large parts of the circumstellar environment. In particular, observations showed evidence of X-ray emitting sources characterized by different luminosities and locations within jets. In some cases, the X-ray emitting region is located at the base of the jet close to the star from which the jet originates while, in other cases, the X-ray source is located further away from the star...
Author : Tetsuya Kawachi
Publisher : Springer
ISBN 13 : 3319730258
Total Pages : 421 pages
Book Rating : 4.3/5 (197 download)
Download or read book X-Ray Lasers 2016 written by Tetsuya Kawachi and published by Springer. This book was released on 2018-02-23 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings comprise a selection of invited and contributed papers presented at the 15th International Conference on X-Ray Lasers (ICXRL 2016), held at the Nara Kasugano International Forum, Japan, from May 22 to 27, 2016. This conference was part of an ongoing series dedicated to recent developments in the science and technology of x-ray lasers and other coherent x-ray sources with additional focus on supporting technologies, instrumentation and applications. The book showcases recent advances in the generation of intense, coherent x-rays, the development of practical devices and their applications across a wide variety of fields. It also discusses emerging topics such as plasma-based x-ray lasers, 4th generation accelerator-based sources and higher harmonic generations, as well as other x-ray generation schemes.
Author :
Publisher :
ISBN 13 :
Total Pages : 934 pages
Book Rating : 4.F/5 ( download)
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Luke Zimmerman Thompson
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (936 download)
Download or read book Planar Laser Induced Fluorescence Experiments and Modeling Study of Jets in Crossflow at Various Injection Angles written by Luke Zimmerman Thompson and published by . This book was released on 2015 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planar Laser Induced Fluorescence (PLIF) with acetone seeding was applied to measure the scalar fields of an axisymmetric freejet and an inclined jet-in-crossflow as applicable to film cooling. From the scalar fields, jet-mixing and trajectory characteristics were obtained. In order to validate the technique, the canonical example of a nonreacting freejet of Reynolds Numbers 900-9000 was investigated. Desired structural characteristics were observed and showed strong agreement with computational modeling. After validating the technique with the axisymmetric jet, the jet-in-crossflow was tested with various velocity ratios and jet injection angles. Results indicated the degree of wall separation for different injection angles and demonstrate both the time-averaged trajectories as well as select near-wall concentration results for varying jet momentum fluxes. Consistent with literature findings, the orthogonal jet trajectory for varying blowing ratios collapsed when scaled by the jet-to-freestream velocity ratio and hole diameter, rd. Similar collapsing was demonstrated in the case of a non-orthogonal jet. Computational Fluid Dynamic (CFD) simulations using the OpenFOAM software was used to compare predictions with select experimental cases, and yielded reasonable agreement. Insight into the importance and structure of the counter rotating vortex pair and general flow field turbulence was highlighted by cross validation between CFD and experimental results.
Author : Vladimir E. Fortov
Publisher : Springer Science & Business Media
ISBN 13 : 3642164641
Total Pages : 345 pages
Book Rating : 4.6/5 (421 download)
Download or read book Extreme States of Matter written by Vladimir E. Fortov and published by Springer Science & Business Media. This book was released on 2010-11-16 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its many beautiful colour pictures, this book gives fascinating insights into the unusual forms and behaviour of matter under extremely high pressures and temperatures. These extreme states are generated, among other things, by strong shock, detonation and electric explosion waves, dense laser beams, electron and ion beams, hypersonic entry of spacecraft into dense atmospheres of planets, and in many other situations characterized by extremely high pressures and temperatures. Written by one of the world's foremost experts on the topic, this book will inform and fascinate all scientists dealing with materials properties and physics, and also serve as an excellent introduction to plasma-, shock-wave and high-energy-density physics for students and newcomers seeking an overview.
Author : Jean-Claude Gauthier
Publisher :
ISBN 13 :
Total Pages : 1288 pages
Book Rating : 4.:/5 (318 download)
Download or read book Inertial Fusion Sciences and Applications 2005 written by Jean-Claude Gauthier and published by . This book was released on 2006 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (893 download)
Download or read book Laser Created Relativistic Positron Jets written by and published by . This book was released on 2009 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron-positron jets with MeV temperature are thought to be present in a wide variety of astrophysical phenomena such as active galaxies, quasars, gamma ray bursts and black holes. They have now been created in the laboratory in a controlled fashion by irradiating a gold target with an intense picosecond duration laser pulse. About 1011 MeV positrons are emitted from the rear surface of the target in a 15 to 22-degree cone for a duration comparable to the laser pulse. These positron jets are quasi-monoenergetic (E/[delta]E ≈ 5) with peak energies controllable from 3-19 MeV. They have temperatures from 1-4 MeV in the beam frame in both the longitudinal and transverse directions. Positron production has been studied extensively in recent decades at low energies (sub-MeV) in areas related to surface science, positron emission tomography, basic antimatter science such as antihydrogen experiments, Bose-Einstein condensed positronium, and basic plasma physics. However, the experimental tools to produce very high temperature positrons and high-flux positron jets needed to simulate astrophysical positron conditions have so far been absent. The MeV temperature jets of positrons and electrons produced in our experiments offer a first step to evaluate the physics models used to explain some of the most energetic phenomena in the universe.
Author :
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.3/5 (91 download)
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1981 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 600 pages
Book Rating : 4.3/5 (91 download)
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1992 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theses on any subject submitted by the academic libraries in the UK and Ireland.
