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Numerical Simulations Of Jets From Young Stellar Objects
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Book Synopsis Jets in Young Stellar Objects by : A.J.L. Fernandes
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
Book Synopsis MHD Flows in Compact Astrophysical Objects by : Vasily S. Beskin
Download or read book MHD Flows in Compact Astrophysical Objects written by Vasily S. Beskin and published by Springer Science & Business Media. This book was released on 2009-12-08 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accretion flows, winds and jets of compact astrophysical objects and stars are generally described within the framework of hydrodynamical and magnetohydrodynamical (MHD) flows. Analytical analysis of the problem provides profound physical insights, which are essential for interpreting and understanding the results of numerical simulations. Providing such a physical understanding of MHD Flows in Compact Astrophysical Objects is the main goal of this book, which is an updated translation of a successful Russian graduate textbook. The book provides the first detailed introduction into the method of the Grad-Shafranov equation, describing analytically the very broad class of hydrodynamical and MHD flows. It starts with the classical examples of hydrodynamical accretion onto relativistic and nonrelativistic objects. The force-free limit of the Grad-Shafranov equation allows us to analyze in detail the physics of the magnetospheres of radio pulsars and black holes, including the Blandford-Znajek process of energy extraction from a rotating black hole immersed in an external magnetic field. Finally, on the basis of the full MHD version of the Grad-Shafranov equation the author discusses the problems of jet collimation and particle acceleration in Active Galactic Nuclei, radio pulsars, and Young Stellar Objects. The comparison of the analytical results with numerical simulations demonstrates their good agreement. Assuming that the reader is familiar with the basic physical and mathematical concepts of General Relativity, the author uses the 3+1 split approach which allows the formulation of all results in terms of physically clear language of three dimensional vectors. The book contains detailed derivations of equations, numerous exercises, and an extensive bibliography. It therefore serves as both an introductory text for graduate students and a valuable reference work for researchers in the field.
Book Synopsis Jets From Young Stars V by : José Gracia
Download or read book Jets From Young Stars V written by José Gracia and published by Springer Science & Business Media. This book was released on 2009-11-11 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studying the complex physical systems of stellar jets necessitates the incorporation of nonlinear effects which occur on a wide variety of length and timescales. One of the primary methods used to study the physics of jets is numerical simulations that apply high performance computing techniques. Such techniques are also required for analysing the huge modern astrophysical datasets. This book examines those computing techniques. It is a collection of the lectures from the fifth and final school of the JETSET network, "Jets From Young Stars V: High Performance Computing in Astrophysics." It begins with an introduction to parallel programming techniques, with an emphasis on Message Passing Interface (MPI), before it goes on to review grid technology techniques and offer a practical introduction to Virtual Observatory. The second half of the book, then, is devoted to applications of high performance computing techniques, including 3D radiation transfer, to jet and star formation processes. Aimed at graduate students in astrophysics, this book presents state-of-the-art methods, thereby offering interesting new insights to researchers in the field.
Book Synopsis Jets from Young Stars by : Jonathan Ferreira
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.
Book Synopsis Laboratory Astrophysics by : Guillermo M. Muñoz Caro
Download or read book Laboratory Astrophysics written by Guillermo M. Muñoz Caro and published by Springer. This book was released on 2018-10-11 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the most recent, relevant, comprehensive and significant aspects in the well-established multidisciplinary field Laboratory Astrophysics. It focuses on astrophysical environments, which include asteroids, comets, the interstellar medium, and circumstellar and circumplanetary regions. Its scope lies between physics and chemistry, since it explores physical properties of the gas, ice, and dust present in those systems, as well as chemical reactions occurring in the gas phase, the bare dust surface, or in the ice bulk and its surface. Each chapter provides the necessary mathematical background to understand the subject, followed by a case study of the corresponding system. The book provides adequate material to help interpret the observations, or the computer models of astrophysical environments. It introduces and describes the use of spectroscopic tools for laboratory astrophysics. This book is mainly addressed to PhD graduates working in this field or observers and modelers searching for information on ice and dust processes.
Book Synopsis Modelling and Simulation in Science by : V. Di Ges
Download or read book Modelling and Simulation in Science written by V. Di Ges and published by World Scientific. This book was released on 2007 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains results presented at the Sixth International Workshop on Data Analysis in Astronomy ? ?Modeling and Simulation in Science? held on April 15-22, 2007, at the Ettore Majorana Foundation and Center for Scientific Culture, Erice, Italy. Recent progress and new trends in the field of simulation and modeling in three branches of science ? astrophysics, biology, and climatology ? are described in papers presented by outstanding scientists. The impact of new technologies on the design of novel data analysis systems and the interrelation among different fields are foremost in scientists' minds in the modern era. This book therefore focuses primarily on data analysis methodologies and techniques.
Book Synopsis Advances in Nonlinear Dynamos by : Antonio Ferriz-Mas
Download or read book Advances in Nonlinear Dynamos written by Antonio Ferriz-Mas and published by CRC Press. This book was released on 2019-07-17 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear dynamo theory is central to understanding the magnetic structures of planets, stars and galaxies. In chapters contributed by some of the leading scientists in the field, this text explores some of the recent advances in the field. Both kinetic and dynamic approaches to the subject are considered, including fast dynamos, topological methods in dynamo theory, physics of the solar cycle and the fundamentals of mean field dynamo. Advances in Nonlinear Dynamos is ideal for graduate students and researchers in theoretical astrophysics and applied mathematics, particularly those interested in cosmic magnetism and related topics, such as turbulence, convection, and more general nonlinear physics.
Book Synopsis Formation and Evolution of Low Mass Stars by : A.K. Dupree
Download or read book Formation and Evolution of Low Mass Stars written by A.K. Dupree and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the Proceedings of the NATO Advanced Study Insti tute on Formation and Evolution of Low Mass Stars held from 21 September to 2 October 1987 at Viana do Castelo, Portugal. Holding the meeting in Portugal recognized both the historical aspects and the bright future of astronomy in Portugal. In the early sixteenth century, the Portugese played an important role in the critical diffusion of classical and medieval knowledge which formed so large a part of scientific activity at that time. Navigation and course setting, brought to a high level by Portugese explorers, relied on mathematics and astronomy to produce precise tables of solar positions. In contemporary Portu gal, astronomy is the focus of renewed interest and support at the universities. It is thus particularly appropriate that the NATO Advanced Study Institute was held on the coast of the Atlantic Ocean in the friendly surroundings of the Costa Verde.
Book Synopsis Modeling And Simulation In Science - Proceedings Of The 6th International Workshop On Data Analysis In Astronomy «Livio Scarsi» by : Giosue Lo Bosco
Download or read book Modeling And Simulation In Science - Proceedings Of The 6th International Workshop On Data Analysis In Astronomy «Livio Scarsi» written by Giosue Lo Bosco and published by World Scientific. This book was released on 2007-12-13 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains results presented at the Sixth International Workshop on Data Analysis in Astronomy — “Modeling and Simulation in Science” held on April 15-22, 2007, at the Ettore Majorana Foundation and Center for Scientific Culture, Erice, Italy. Recent progress and new trends in the field of simulation and modeling in three branches of science — astrophysics, biology, and climatology — are described in papers presented by outstanding scientists. The impact of new technologies on the design of novel data analysis systems and the interrelation among different fields are foremost in scientists' minds in the modern era. This book therefore focuses primarily on data analysis methodologies and techniques.
Book Synopsis Observational Plasma Astrophysics: Five Years of Yohkoh and Beyond by : Tetsuya Watanabe
Download or read book Observational Plasma Astrophysics: Five Years of Yohkoh and Beyond written by Tetsuya Watanabe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its launch in 1991, the Yohkoh satellite has been returning unprecedented observations of solar flares and the dynamic solar corona. This book is a collection of papers presented at a meeting held in: Yoyogi, Tokyo, on the occasion of Yohkoh's fifth anniversary of operation. The papers constitute a summary of observations and results over the five years, including contributions based on data from Yohkoh's hard and soft X-ray telescopes and its spectrometer experiments. The five years of data, covering approximately one-half of a solar cycle, reveal a fresh perspective on solar science, with a new picture of solar flares and the active Sun emerging. Also, for the first time there are extensive results from Yohkoh observations of the Sun during the solar minimum period. This wide-ranging volume will be of interest to workers in solar physics and X-ray astronomy. It also contains material appropriate for supplemental reading for graduate students in solar physics.
Book Synopsis Publications of the Astronomical Society of Japan by : Nihon Tenmon Gakkai
Download or read book Publications of the Astronomical Society of Japan written by Nihon Tenmon Gakkai and published by . This book was released on 2008 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis JET Simulations, Experiments, and Theory by : Christophe Sauty
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 157 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.
Book Synopsis Cyclical Variability in Stellar Winds by : Lex Kaper
Download or read book Cyclical Variability in Stellar Winds written by Lex Kaper and published by Springer Science & Business Media. This book was released on 2013-06-05 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that stellar winds are variable, and the fluctuations are often cyclical in nature. This property seems to be shared by the winds of cool and hot stars, even though their outflows are driven by fundamentally different physical mechanisms. Since very similar models have been proposed to explain the cyclical wind variations observed in a wide variety of stars, the time was ripe for astrophysicists from many different sub-disciplines to present the state of the art in a concise form. The proceedings will provide a useful, up-to-date overview of the observations, interpretation, and modelling of the time-dependent mass outflows from all sorts of stars.
Book Synopsis Protostellar Jets in Context by : Kanaris Tsinganos
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.
Book Synopsis Jets from Young Stars II by : Francesca Bacciotti
Download or read book Jets from Young Stars II written by Francesca Bacciotti and published by Springer. This book was released on 2007-10-31 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers a background in modern high spatial resolution techniques, illustrating how such methods have impacted on our understanding of young stars. It provides hands-on insight into observing from space as well as the ground, the use of interferometers at millimeter and infrared wavelengths, image analysis and spectral diagnostic techniques, and High Angular Resolution studies of the inner regions of circumstellar disks that play a fundamental role in jet launching.
Book Synopsis High Energy Density Laboratory Astrophysics by : George A. Kyrala
Download or read book High Energy Density Laboratory Astrophysics written by George A. Kyrala and published by Springer Science & Business Media. This book was released on 2005-08-10 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past several years, research teams around the world have developed astrophysics-relevant utilizing high energy-density facilities such as intense lasers and z-pinches. Research is underway in many areas, such as compressible hydrodynamic mixing, strong shock phenomena, radiation flow, radiative shocks and jets, complex opacities, equations o fstat, and relativistic plasmas. Beyond this current research and the papers it is producing, plans are being made for the application, to astrophysics-relevant research, of the 2 MJ National Ignition Facility (NIF) laser at Lawrence Livermore National Laboratory; the 600 kj Ligne d'Intergration Laser (LIL) and the 2 MJ Laser Megajoule (LMJ) in Bordeaux, France; petawatt-range lasers now under construction around the world; and current and future Z pinches. The goal of this conference and these proceedings is to continue focusing and attention on this emerging research area. The conference brought together different scientists interested in this emerging new filed, with topics covering: - Hydrodynamic instabilities in astrophysics, - Supernovae and supernova remnant evolution, - Aastrophysical shocks, blast waves, and jets, - Stellar opacities, - Radiation and thermal transport, - Dense plasma atomic physics and EOS - X-ray photoionized plasmas, - Ultrastrong magnetic field generation Reprinted from Astrophysics and Space Science, volume 298, Nos. 1-2, 2005
Book Synopsis Astrophysical Jets by : D. Burgarella
Download or read book Astrophysical Jets written by D. Burgarella and published by Cambridge University Press. This book was released on 1993-11-11 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of edited review articles presented at a workshop at the Space Telescope Science Institute which gathered astrophysicists from the fields of extragalactic and galactic/stellar jets.
