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Author : Barry F. O'Connell
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (81 download)
Download or read book The Impact of Protostellar Jets on Their Environment written by Barry F. O'Connell and published by . This book was released on 2005 with total page 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 :
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (727 download)
Download or read book Protostellar Outflow Evolution in Turbulent Environments written by and published by . This book was released on 2008 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The link between turbulence in star formatting environments and protostellar jets remains controversial. To explore issues of turbulence and fossil cavities driven by young stellar outflows we present a series of numerical simulations tracking the evolution of transient protostellar jets driven into a turbulent medium. Our simulations show both the effect of turbulence on outflow structures and, conversely, the effect of outflows on the ambient turbulence. We demonstrate how turbulence will lead to strong modifications in jet morphology. More importantly, we demonstrate that individual transient outflows have the capacity to re-energize decaying turbulence. Our simulations support a scenario in which the directed energy/momentum associated with cavities is randomized as the cavities are disrupted by dynamical instabilities seeded by the ambient turbulence. Consideration of the energy power spectra of the simulations reveals that the disruption of the cavities powers an energy cascade consistent with Burgers-type turbulence and produces a driving scale-length associated with the cavity propagation length. We conclude that fossil cavities interacting either with a turbulent medium or with other cavities have the capacity to sustain or create turbulent flows in star forming environments. In the last section we contrast our work and its conclusions with previous studies which claim that jets can not be the source of turbulence.
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 : Bo Reipurth
Publisher : University of Arizona Press
ISBN 13 : 9780816526543
Total Pages : 994 pages
Book Rating : 4.5/5 (265 download)
Download or read book Protostars and Planets V written by Bo Reipurth and published by University of Arizona Press. This book was released on 2007 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Protostars and Planets V' builds on the latest results from recent advances in ground and space-based astronomy and in numerical computing techniques to offer the most detailed and up-to-date picture of star and planet formation - including the formation and early evolution of our own solar system.
Author : Christophe Sauty
Publisher :
ISBN 13 : 9783030141295
Total Pages : 154 pages
Book Rating : 4.1/5 (412 download)
Download or read book JET Simulations, Experiments, and Theory written by Christophe Sauty and published by . This book was released on 2019 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 : Edvige Corbelli
Publisher : Springer Science & Business Media
ISBN 13 : 1402034075
Total Pages : 551 pages
Book Rating : 4.4/5 (2 download)
Download or read book The Initial Mass Function 50 Years Later written by Edvige Corbelli and published by Springer Science & Business Media. This book was released on 2007-10-06 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theideatocelebrate50yearsoftheSalpeterIMFoccurredduringtherecent IAU General Assembly in Sydney, Australia. Indeed, it was from Australia that in July 1954 Ed Salpeter submitted his famous paper "The Luminosity Function and Stellar Evolution" with the rst derivation of the empirical stellar IMF. This contribution was to become one of the most famous astrophysics papers of the last 50 years. Here, Ed Salpeter introduced the terms "original mass function" and "original luminosity function", and estimated the pro- bility for the creation of stars of given mass at a particular time, now known as the "Salpeter Initial Mass Function", or IMF. The paper was written at the Australian National University in Canberra on leave of absence from Cornell University (USA) and was published in 1955 as 7 page note in the Astroph- ical Journal Vol. 121, page 161. To celabrate the 50th anniversary of the IMF, along with Ed Salpeter’s 80th birthday, we have organized a special meeting that brought together scientists involved in the empirical determination of this fundamental quantity in a va- ety of astrophysical contexts and other scientists fascinated by the deep imp- cations of the IMF on star formation theories, on the physical conditions of the gas before and after star formation, and on galactic evolution and cosmology. The meeting took place in one of the most beautiful spots of the Tuscan countryside, far from the noise and haste of everyday life.
Author : Henrik Beuther
Publisher : University of Arizona Press
ISBN 13 : 0816531242
Total Pages : 945 pages
Book Rating : 4.8/5 (165 download)
Download or read book Protostars and Planets VI written by Henrik Beuther and published by University of Arizona Press. This book was released on 2014-12-18 with total page 945 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a conference held in Heidelberg, Germany, July 15-20, 2013.
Author : I.H. Cairns
Publisher : Springer Science & Business Media
ISBN 13 : 9400710690
Total Pages : 535 pages
Book Rating : 4.4/5 (7 download)
Download or read book Advances in Space Environment Research written by I.H. Cairns and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Space Environment Research - Volume I contains the proceedings of two international workshops, the World Space Environment Forum (WSEF2002) and the High Performance Computing in Space Environment Research (HPC2002), organized by the World Institute for Space Environment Research (WISER) from 22 July to 2 August 2002 in Adelaide, Australia. The articles in this volume review the state-of-the-art of the theoretical, computational and observational studies of the physical processes of Sun-Earth connections and Space Environment. They cover six topical areas: Sun/Heliosphere, Magnetosphere/Bow Shock, Ionosphere/Atmosphere, Space Weather/Space Climate, Space Plasma Physics/Astrophysics, and Complex/Intelligent Systems.
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 : Gilles Chabrier
Publisher : Cambridge University Press
ISBN 13 : 0521887798
Total Pages : 455 pages
Book Rating : 4.5/5 (218 download)
Download or read book Structure Formation in Astrophysics written by Gilles Chabrier and published by Cambridge University Press. This book was released on 2009-01-15 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique reference for graduate students and researchers addressing common problems and methods in studying galaxy, star and planet formation.
Author : Francesca Bacciotti
Publisher : Springer
ISBN 13 : 3540680322
Total Pages : 298 pages
Book Rating : 4.5/5 (46 download)
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 298 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.
Author : D. Burgarella
Publisher : Cambridge University Press
ISBN 13 : 9780521442213
Total Pages : 332 pages
Book Rating : 4.4/5 (422 download)
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.
Author : Michael D. Smith
Publisher : Cambridge University Press
ISBN 13 : 0521834767
Total Pages : 241 pages
Book Rating : 4.5/5 (218 download)
Download or read book Astrophysical Jets and Beams written by Michael D. Smith and published by Cambridge University Press. This book was released on 2012-02-16 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date study of astrophysical jets that will appeal to students and researchers in all areas of astrophysics.
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 : International Astronomical Union. Symposium
Publisher : Cambridge University Press
ISBN 13 : 9780521863469
Total Pages : 544 pages
Book Rating : 4.8/5 (634 download)
Download or read book Triggered Star Formation in a Turbulent Interstellar Medium (IAU S237) written by International Astronomical Union. Symposium and published by Cambridge University Press. This book was released on 2007-05-28 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: New stars form in the dense turbulent gas clouds of galaxies, and the formation of these clouds is the subject of the IAU S237. This book is the most up-to-date review of all aspects of cloud and star formation, and one of the few compendiums available on ISM turbulence.
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:
