Young Stars Plus 4


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Young Stars Plus 4


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Physical Processes in Circumstellar Disks around Young Stars


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Circumstellar disks are vast expanses of dust that form around new stars in the earliest stages of their birth. Predicted by astronomers as early as the eighteenth century, they weren’t observed until the late twentieth century, when interstellar imaging technology enabled us to see nascent stars hundreds of light years away. Since then, circumstellar disks have become an area of intense study among astrophysicists, largely because they are thought to be the forerunners of planetary systems like our own—the possible birthplaces of planets. This volume brings together a team of leading experts to distill the most up-to-date knowledge of circumstellar disks into a clear introductory volume. Understanding circumstellar disks requires a broad range of scientific knowledge, including chemical processes, the properties of dust and gases, hydrodynamics and magnetohydrodynamics, radiation transfer, and stellar evolution—all of which are covered in this comprehensive work, which will be indispensable for graduate students, seasoned researchers, or even advanced undergrads setting out on the study of planetary evolution.




The Ring of Earth (Young Samurai, Book 4)


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JACK FLETCHER IS ON THE RUN With no sensei to guide him, he has just his wits and his swords against many new and unknown enemies, as he journeys along the treacherous road to the port of Nagasaki and perhaps home... But the Shogun's samurai are hot on his trail. Barely escaping their clutches, Jack runs headlong into a trap. Kidnapped by ninja and led to their village deep in the mountains, Jack has no means of escape. The only question is who will kill him first - the ninja or samurai?




Rescued


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While the Young Trib Force deals with the tragic loss of a friend, Judd and Vicki use every measure possible to avoid capture by the Global Community.




Only the Good Spy Young


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When Cammie Morgan enrolled at the Gallagher Academy for Exceptional Young Women, she knew she was preparing for the dangerous life of a spy. She just didn't know that life would start during her junior year of high school. But that's exactly what happened when Cammie faced off against a mysterious organisation called the Circle of Cavan. Now ev...




Full Whack


Book Description

From the author of the latest official James Bond novel 'Charlie Higson's thrillers are major events' Mark Billingham 'Piercing wit and accelerated action in finely paced style' Time Out 'Lively narration, a superabundance of action... gruesome and hilarious' Evening Standard Dennis 'The Menace' Pike, former wild man of Tottenham, is going grey and going straight. Anyway, it was hard work being a yob- the birds, the brawls, the endless beers- and he hasn't really got the energy any more for life on the edge. Then two old faces turn up from the past- the Bishop brothers, Chas and Noel. Famously inept, they were bad news then, and they haven't aged well. What's worse, they need Pike's expertise on a scheme wealth distribution really- offloading one of the old gang's ill-gotten millions. Robbing the robbers- now what's criminal about that? Pike, still haunted by what happened one wreckless night all those years ago, refuses to get involved. But old habits die hard, and when he suddenly finds his bank account tampered with, Pike is drawn back into a world he spent ten years escaping. Thug or mug, he is nevertheless forced to confront a man so psychotically unhinged that his own youth seems like mere kids' stuff... A slick, razor-sharp novel, FULL WHACK is packed full of searing wit, scurrilous characters and nefarious knock-about.




Young Stars 4


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Jets from Young Stars IV


Book Description

Astronomical jets are key astrophysical phenomena observed in gamma-ray bursts, active galactic nuclei or young stars. Research on them has largely occurred within the domains of astronomical observations, astrophysical modeling and numerical simulations, but the recent advent of high energy density facilities has added experimental control to jet studies. Front-line research on jet launching and collimation requires a highly interdisciplinary approach and an elevated level of sophistication. Bridging the gaps between pure magnetohydrodynamics, thermo-chemical evolution, high angular resolution spectro-imaging and laboratory experiments is no small matter. This volume strives to bridge those very gaps. It offers a series of lectures which, taken as whole, act as a thorough reference for the foundations of this discipline. These lectures address the following: · laboratory jets physics from laser and z-pinch plasma experiments, · the magnetohydrodynamic theory of relativistic and non-relativistic stationary jets, · heating mechanisms in magnetohydrodynamic jets, from the solar magnetic reconnection to the molecular shock heating perspectives, · atomic and molecular microphysics of jet shocked material. In addition to the lectures, the book offers, in closing, a presentation of a series of observational diagnostics, thus allowing for the recovery of basic physical quantities from jet emission lines.