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Books > Science & Mathematics > Astronomy, space & time

Solid State Astrochemistry (Hardcover, 2003 ed.): Valerio Pirronello, Jacek Krelowski, Giulio Manico Solid State Astrochemistry (Hardcover, 2003 ed.)
Valerio Pirronello, Jacek Krelowski, Giulio Manico
R3,088 Discovery Miles 30 880 Ships in 10 - 15 working days

The fundamentals of astrochemistry in the gas phase are relatively well established, in contrast to the special relevance attributed to processes involving interstellar dust grains - the solid component of matter diffused among the stars.
This book presents the state of the art in relation to the ways grains interact with gases, the catalytic role played by dust that allows key molecular species (H2 as well as many complex, possibly prebiotic species) to be formed on its surface - which cannot be obtained efficiently by any other mechanisms, and the interaction between solids (dust grains, icy mantles, cometary nuclei, satellites of the giant planets and minor bodies in the Solar system) in space and energetic agents such as UV photons and fast particles.
The presence and importance of PAH, which may represent the smallest component of the grains, is considered in relation to possible astrobiological pathways and the ever-present mystery of the ubiquitous presence of Diffuse Interstellar Bands and their carriers.

Simulations of Dark Energy Cosmologies (Hardcover, 2012 ed.): Elise Jennings Simulations of Dark Energy Cosmologies (Hardcover, 2012 ed.)
Elise Jennings
R2,908 Discovery Miles 29 080 Ships in 10 - 15 working days

A major outstanding problem in physics is understanding the nature of the dark energy that is driving the accelerating expansion of the Universe. This thesis makes a significant contribution by demonstrating, for the first time, using state-of-the-art computer simulations, that the interpretation of future galaxy survey measurements is far more subtle than is widely assumed, and that a major revision to our models of these effects is urgently needed. The work contained in the thesis was used by the WiggleZ dark energy survey to measure the growth rate of cosmic structure in 2011 and had a direct impact on the design of the surveys to be conducted by the European Space Agency's Euclid mission, a 650 million euro project to measure dark energy.

Meteoroids, Meteors, and Meteorites - Know the Difference Solar System Children's Book Grade 4 Children's Astronomy &... Meteoroids, Meteors, and Meteorites - Know the Difference Solar System Children's Book Grade 4 Children's Astronomy & Space Books (Hardcover)
Baby Professor
R637 Discovery Miles 6 370 Ships in 12 - 17 working days
X-ray Binaries and Recycled Pulsars - Proceedings of the NATO Advanced Research Workshop on X-ray Binaries and the Formation of... X-ray Binaries and Recycled Pulsars - Proceedings of the NATO Advanced Research Workshop on X-ray Binaries and the Formation of Binary and Millisecond Radio Pulsars, Santa Barbara, CA., U.S.A., January 21-25, 1991 (Hardcover)
E.P.J. van den Heuvel, S. A Rappaport
R2,571 Discovery Miles 25 710 Ships in 12 - 17 working days

The motivation for the workshop on which this book is based was the discovery in recent years of a large number of binary and millisecond radio pulsars, in the galactic disk as well as in globular star clusters, the oldest stellar systems in our galaxy. These discoveries have revolutionized our thinking on many aspects concerning the interior structure and evolution of neutron stars, and have revived the interest in the study of neutron star physics in general. In this book some three dozen of the world's experts in the field of radio pulsars, X-ray binaries, stellar evolution, neutron star interiors and stellar dynamics review the latest observational discoveries as well as the current theoretical thinking on the formation and physics of binary X-ray sources and of the binary and milli-second pulsars. These include discoveries such as that of the elevent millisecond pulsars in the globular cluster 47 Tucanae, the relativistic effects in the new double neturon star system PSR 1534+12 and spectacular results from Germany's ROSAT X-Ray Observatory.

Galaxies: Interactions and Induced Star Formation - Saas-Fee Advanced Course 26. Lecture Notes 1996 Swiss Society for... Galaxies: Interactions and Induced Star Formation - Saas-Fee Advanced Course 26. Lecture Notes 1996 Swiss Society for Astrophysics and Astronomy (Hardcover, 1998 ed.)
Robert C Kennicutt Jr; Edited by D Friedli, L Martinet; F Schweizer; Edited by D. Pfenniger; …
R3,011 Discovery Miles 30 110 Ships in 10 - 15 working days

This volume contains the written versions of the lectures given at the 26th course of the renowned Saas-Fee series. The book represents a comprehensive and up-to-date review of the field of galaxy interaction. Nowadays, galaxies are no longer seen as immutable objects: they evolve, interact, merge, blaze, and reshape. Dynamic forces can induce powerful stellar activity able to transform the matter composition and morphology of galaxies. The lectures included in this book aim at a better understanding of these remarkable and fascinating phenomena. Though the book is intended for graduate students and young post-docs in astrophysics, it contains more advanced and original material, as well as historical perspectives, which will be of great interest to experts and astronomy teachers also.

Frontiers of Cosmology - Proceedings of the NATO ASI on The Frontiers of Cosmology, Cargese, France from 8 -  20 September 2003... Frontiers of Cosmology - Proceedings of the NATO ASI on The Frontiers of Cosmology, Cargese, France from 8 - 20 September 2003 (Hardcover, 2005 ed.)
Alain Blanchard, Monique Signore
R8,577 Discovery Miles 85 770 Ships in 12 - 17 working days

The ?eld of cosmology is currently undergoing a revolution driven by d- matic observational progress and by novel theoretical scenarios imported from particle physics. In particular, two most remarkable results were recently - tained from measurements of the angular spectrum of the ?uctuations in the Cosmic Microwave Background (CMB) radiation providing convincing e- dence that the Universe is nearly ?at and from the Hubble diagram of distant supernovae indicating an accelerating expansion rate, which implies the ex- tence of some dark energy as the dominant component of the Universe. Indeed, the next decade will bene't from high quality data on cosmology from diff- ent major experiments and observatories, with a particular important contri- tion from space missions such as WMAP, Planck Surveyor, XMM and SNAP among others. On one side, cosmologists believe they understand the origin of themain ingredients which allowacoherent description of theUniverse from its very earlyphase, namely in?ation, to the actual epoch which accounts for theoriginof theprimordial?uctuations, allowing predictions of their - prints inthe cosmicmicrowave skyandleading to the large scale structure of theUniverse as observed. Ontheother side, theexistence of a non-zero vacuum density is certainly one of the most astonishing results of modern f- damental physics. Understanding its nature andits originwill be one of the major directions of researchinthe following years. In view of the intensive current activity inthe ?eld, aSchoolfully dedicated to these both sides in cosmology was timely

Cosmic Rays in the Heliosphere - Volume Resulting from an ISSI Workshop 17-20 September 1996 and 10-14 March 1997, Bern,... Cosmic Rays in the Heliosphere - Volume Resulting from an ISSI Workshop 17-20 September 1996 and 10-14 March 1997, Bern, Switzerland (Hardcover, Reprinted from Space Science Reviews journal, Vol. 83/1-2)
L.A. Fisk, J.R. Jopikii, G. M Simnett, Rudolf von Steiger, K-P. Wenzel
R4,553 Discovery Miles 45 530 Ships in 12 - 17 working days

This volume gives a comprehensive and integrated overview of current knowledge about cosmic rays in the heliosphere. It is the result of a workshop at ISSI, where experimental space physicists as well as theorists presented and discussed their views on the behaviour of cosmic rays during the currently prevalent solar minimum conditions, when the heliosphere has a well-ordered and relatively simple configuration. An unprecedented array of spacecraft - Ulysses, Pioneer, Voyager, IMP-8, Wind, to name a few - in conjunction with ever more sophisticated numerical models made this possible, gave us our first clear view of the three-dimensional heliosphere at solar minimum, and have significantly advanced our knowledge. The status of the field is first presented in a series of introductory papers; these are followed by four Working Group reports attempting to synthesise this knowledge, make progress in our understanding, and point out directions of future research. A summary of the parameters used in cosmic ray modulation and an epilogue on conditions and consequences expected at the upcoming solar maximum conclude the volume. The book is intended to provide active researchers in space physics with an up-to-date status report and also to introduce the advanced graduate student to the field.

From the Sun to the Great Attractor - 1999 Guanajuato Lectures on Astrophysics (Hardcover, 2000 ed.): Dany Page, Jorge G. Hirsch From the Sun to the Great Attractor - 1999 Guanajuato Lectures on Astrophysics (Hardcover, 2000 ed.)
Dany Page, Jorge G. Hirsch
R3,140 Discovery Miles 31 400 Ships in 10 - 15 working days

The enormous advances in observational techniques over the last two decades has produced a wealth of data and unexpected discoveries which have helped to reshape astrophysics as a field with well-formulated theories and sophisticated numerical calculations. In nuclear particle physics, plasma physics, as well as in general relativity, the Universe has become a laboratory for cutting-edge research. The courses collected in the book are intended to provide students with this insight, giving a general background on each topic such as cosmic rays, nuclear and neutrino astrophysics, solar physics and strong fields, as well as a presentation of the current research and open problems. The book is aimed at graduate students in physics and astrophysics, as well as researchers, bridging a gap between the specialized reviews and the comprehensive books.

Encyclopedia of Cosmology (Routledge Revivals) - Historical, Philosophical, and Scientific Foundations of Modern Cosmology... Encyclopedia of Cosmology (Routledge Revivals) - Historical, Philosophical, and Scientific Foundations of Modern Cosmology (Paperback)
Norriss S. Hetherington
R2,186 Discovery Miles 21 860 Ships in 12 - 17 working days

The Encyclopedia of Cosmology, first published in 1993, recounts the history, philosophical assumptions, methodological ambiguities, and human struggles that have influenced the various responses to the basic questions of cosmology through the ages, as well as referencing important scientific theories. Just as the recognition of social conventions in other cultures can lead to a more productive perspective on our own behaviour, so too a study of the cosmologies of other times and places can enable us recognise elements of our own cosmology that might otherwise pass as inevitable developments. Apart from modern natural science, therefore, this volume incorporates brief treatments of Native American, Cave-Dweller, Chinese, Egyptian, Islamic, Megalithic, Mesopotamian, Greek, Medieval and Copernican cosmology, leading to an appreciation of cosmology as an intellectual creation, not merely a collection of facts. It is a valuable reference tool for any student or academic with an interest in the history of science and cosmology specifically.

Qualitative and Quantitative Behaviour of Planetary Systems - Proceedings of the Third Alexander Von Humboldt Colloquium on... Qualitative and Quantitative Behaviour of Planetary Systems - Proceedings of the Third Alexander Von Humboldt Colloquium on Celestial Mechanics (Hardcover, Reprinted from Celestial Mecha and My, 56:1-2 ed.)
R. Dvorak, Jacques Henrard
R2,549 Discovery Miles 25 490 Ships in 12 - 17 working days

This volume contains the papers presented at the Third Alexander von Humboldt Colloquium on Celestial Mechanics. The papers cover a large range of questions, from the behaviour of dust particles to the stability of the solar system as a whole. The motions of asteroids and their classification into families are also discussed. Specific topics addressed are KAM theory, chaotic motions, resonances, Lyapunov characteristic exponents, perturbation theory and numerical integration.

Mathematical and Quantum Aspects of Relativity and Cosmology - Proceedings of the Second Samos Meeting on Cosmology, Geometry... Mathematical and Quantum Aspects of Relativity and Cosmology - Proceedings of the Second Samos Meeting on Cosmology, Geometry and Relativity Held at Pythagoreon, Samos, Greece, 31 August - 4 September 1998 (Hardcover, 2000 ed.)
Spiros Cotsakis, Gary W. Gibbons
R3,081 Discovery Miles 30 810 Ships in 10 - 15 working days

This book is written in a pedagogical style intelligible for graduate students. It reviews recent progress in black-hole and wormhole theory and in mathematical cosmology within the framework of Einstein's field equations and beyond, including quantum effects. This collection of essays, written by leading scientists of long standing reputation, should become an indispensable source for future research.

The Opacity of Spiral Disks (Hardcover): Jonathan I. Davies, David Burstein The Opacity of Spiral Disks (Hardcover)
Jonathan I. Davies, David Burstein
R2,545 Discovery Miles 25 450 Ships in 12 - 17 working days

Foreword; J. Davies, D. Burstein. Introductory Remarks; M. Disney. Interstellar grain evolution and temperatures in spiral galaxies; J. Mayo Greenberg, A. Li. Radiative transfer models; G. Bruzual A. Radiative transfer in dusty galaxies; A.N. Witt. Opacity Diagnostics in spiral galaxies; N.D. Kylafis. Modeling dusty galaxies; G. Magris C., G. Bruzual A. Inclination-dependence of spiral galaxy physical properties: history and tests; D. Burstein, et al. Why a distance selection effect invalidates the Burstein, Haynes and Faber opacity test; J.I. Davies, et al. Statistical tests for opacity; E.A. Valentijn. Statistical measures of internal absorption in spiral galaxies; B. Cunow. The distribution of galactic inclinations; H. Jones, et al. Optical thickness of Sb-Scd galaxies from the Tully--Fisher relation; L. Gouguenhei, et al. Extinction in Sc galaxies at I band and in the 21cm line; R. Giovanelli. Extinction in the galaxy and in galactic discs; G. de Vaucouleurs. Properties of dust in backlit galaxies; W. Keel, R.E. White. The optical depth through NGC 3314A; P. James, P. Puxley. Dust extinction in highly inclined spirals; J. Knapen, et al. An optical search for dusty disks; M. Naslund, S. Joersater. Photometric asymmetry and dust opacity of spiral galaxies; Y.I. Byun. The scale-length test for dust in face-on spirals; J.E. Beckman, et al. Color gradients in spiral galaxies; S. Courteau, J. Holtzman. Constraints on the opacity of spiral disks from near-infrared observations; H.W. Rix. Arcsecond resolution of cold dust in spiral galaxies using optical and NIR imaging -- dust masses increase by nine hundred percent; D.L. Block, et al. Unveiling stars and dust in spiral galaxies;R.F. Pelletier, et al. Azimuthal distribution of dust in NGC 2997; P. Grosbol, et al. Internal extinction in spiral galaxies at optical and near infrared wavelengths; A. Boselli, G. Gavazzi. The opacity of spiral galaxy disks; N. Devereux. The far infrared/stellar energy balance; R. Evans. Opacity from luminosity functions; M. Trewhella, et al. Estimating disk opacities using infrared images; W. van Driel. DIRBE observations of galactic extinction; R.G. Arendt, et al. Kinematics of edge-on galaxies and the opacity of spiral disks; A. Bosma. Spectroscopic studies of the disk and halo of M82; C.D. McKeith, et al. Disk origin and evolution; J. Silk. The luminosity and opacity of galaxies; B. Wang. Dust obscuration in starburst galaxies; D. Calzetti. Polarimetry of dusty edge-on galaxies; R.D. Wolstencroft, S.M. Scarrott. HII regions and extinction in the spiral galaxy M83; S. Ryder, et al. A search for dust in galactic halos; D. Zaritsky. Concluding thoughts and reflections: dust in galaxies; H.A. Thronson Jr.

Transfer of Polarized Light in Planetary Atmospheres - Basic Concepts and Practical Methods (Hardcover, 2004 ed.): J. W... Transfer of Polarized Light in Planetary Atmospheres - Basic Concepts and Practical Methods (Hardcover, 2004 ed.)
J. W Hovenier, Cornelis V. M. Van Der Mee, Helmut Domke
R3,086 Discovery Miles 30 860 Ships in 10 - 15 working days

The principal elements of the theory of polarized light transfer in planetary atmospheres are expounded in a systematic but concise way. Basic concepts and practical methods are emphasized, both for single and multiple scattering of electromagnetic radiation by molecules and particles in the atmospheres of planets in the Solar System, including the Earth, and beyond. A large part of the book is also useful for studies of light scattering by particles in comets, the interplanetary and interstellar medium, circumstellar disks, reflection nebulae, water bodies like oceans and suspensions of particles in a gas or liquid in the laboratory.

Throughout the book symmetry principles, such as the reciprocity principle and the mirror symmetry principle, are employed. In this way the theory is made more transparent and easier to understand than in most papers on the subject. In addition, significant computational reductions, resulting from symmetry principles, are presented. Hundreds of references to relevant literature are given at the end of the book. Appendices contain supplementary information such as a general exposition on properties of matrices transforming Stokes parameters of light beams. Each chapter concludes with a number of problems with answers or hints for solution.

The readers should have some basic knowledge of physics and mathematics. The book is suitable as a textbook for advanced undergraduates and graduate students. It will also be of interest to science professionals in one of the many disciplines in which electromagnetic scattering plays an important role, like astrophysics, atmospheric optics, remote sensing, marine optics, biophysics and biomedicine.

The Nature of Solar Prominences (Hardcover, 1995 ed.): Einar Tandberg-Hanssen The Nature of Solar Prominences (Hardcover, 1995 ed.)
Einar Tandberg-Hanssen
R4,538 Discovery Miles 45 380 Ships in 12 - 17 working days

"He is beautiful and radiant with great splendor ... " St. Francis, from Cantico del sole Two decades have elapsed since the publication of Solar Prominences, 20 years that have seen a nearly phenomenal increase in the interest, as well as the infor mation, concerning these fascinating and beautiful manifestations of solar ac tivity. During this period many meetings have been held, and several books and proceedings have been published, all dealing with specific aspects of solar prominences. However, no unifying and comprehensive accord has appeared. Recently some of my colleagues suggested that the time was ripe for a new addition of Solar Prominences, and Kluwer Academic Publishers wanted to pub lish such a book. I, therefore, venture to present this monograph in the hope of kindling the interest of some graduate students in the study of this-probably the most spectacular and often the most beautiful of solar activity manifestation. However, since it is the physical processes behind these events that will particu larly interest us, I also hope the book may be of help to some of my colleagues. In a rapidly developing field of science it is difficult, if not impossible, to present an overview that is up to date in every respect. I have made nearly every effort to include the latest contributions in the broad area of prominence research, but I am sure I have overlooked some important investigations. For these oversights, I apologize."

Cosmic Gamma-Ray Sources (Hardcover, 2004 ed.): K.S. Cheng, Gustavo E. Romero Cosmic Gamma-Ray Sources (Hardcover, 2004 ed.)
K.S. Cheng, Gustavo E. Romero
R6,544 Discovery Miles 65 440 Ships in 10 - 15 working days

Gamma-ray astronomy has undergone an enormous progress in the last 15 years. The success of satellite experiments like NASA's Comp ton Gamma-Ray Observatory and ESA's INTEGRAL mission, as well as of ground-based instruments have open new views into the high-energy Universe. Different classes of cosmic gamma-ray sources have been now detected at different energies, in addition to young radio pulsars and gamma-ray bursts, the classical ones. The new sources include radio quiet pulsars, microquasars, supernova remnants, starburst galaxies, ra dio galaxies, flat-spectrum radio quasars, and BL Lacertae objects. A large number of unidentified sources strongly suggests that this brief enumeration is far from complete. Gamma-ray bursts are now estab lished as extragalactic sources with tremendous energy output. There is accumulating evidence supporting the idea that massive stars and star forming regions can accelerate charged particles up to relativistic ener gies making them gamma-ray sources. Gamma-ray astronomy has also proved to be a powerful tool for cosmology imposing constraints to the background photon fields that can absorb the gamma-ray flux from dis tant sources. All this has profound implications for our current ideas about how particles are accelerated and transported in both the local and distant U niverse. The evolution of our knowledge on the gamma-ray sky has been so fast that is not easy for the non-specialist scientist and the graduate student to be aware of the full potential of this field or to grasp the fundamentals of a given topic in order to attempt some original contribution.

Astronomy Across Cultures - The History of Non-Western Astronomy (Hardcover, 2000 ed.): Helaine Selin Astronomy Across Cultures - The History of Non-Western Astronomy (Hardcover, 2000 ed.)
Helaine Selin
R10,154 Discovery Miles 101 540 Ships in 10 - 15 working days

Astronomy Across Cultures: A History of Non-Western Astronomy consists of essays dealing with the astronomical knowledge and beliefs of cultures outside the United States and Europe. In addition to articles surveying Islamic, Chinese, Native American, Aboriginal Australian, Polynesian, Egyptian and Tibetan astronomy, among others, the book includes essays on Sky Tales and Why We Tell Them and Astronomy and Prehistory, and Astronomy and Astrology. The essays address the connections between science and culture and relate astronomical practices to the cultures which produced them. Each essay is well illustrated and contains an extensive bibliography. Because the geographic range is global, the book fills a gap in both the history of science and in cultural studies. It should find a place on the bookshelves of advanced undergraduate students, graduate students, and scholars, as well as in libraries serving those groups.

Inventing a Space Mission - The Story of the Herschel Space Observatory (Hardcover, 1st ed. 2017): Vincent Minier,... Inventing a Space Mission - The Story of the Herschel Space Observatory (Hardcover, 1st ed. 2017)
Vincent Minier, Roger-Maurice Bonnet, Vincent Bontems, Thijs de Graauw, Matt Griffin, …
R4,486 Discovery Miles 44 860 Ships in 12 - 17 working days

This book describes prominent technological achievements within a very successful space science mission: the Herschel space observatory. Focusing on the various processes of innovation it offers an analysis and discussion of the social, technological and scientific context of the mission that paved the way to its development. It addresses the key question raised by these processes in our modern society, i.e.: how knowledge management of innovation set the conditions for inventing the future? In that respect the book is based on a transdisciplinary analysis of the programmatic complexity of Herschel, with inputs from space scientists, managers, philosophers, and engineers. This book is addressed to decision makers, not only in space science, but also in other industries and sciences using or building large machines. It is also addressed to space engineers and scientists as well as students in science and management.

Planetary Nebulae - Proceedings of the 155th Symposium of the International Astronomical Union Held in Innsbruck, Austria, July... Planetary Nebulae - Proceedings of the 155th Symposium of the International Astronomical Union Held in Innsbruck, Austria, July 13-17, 1992 (Hardcover)
R. Weinberger, A. Acker
R2,581 Discovery Miles 25 810 Ships in 12 - 17 working days

Planetary nebulae are a keystone for the understanding of the evolution of stars, for deep insights into the physical processes prevailing in highly excited dilute nebulae, and for the chemical evolution in galaxies. These objects, displaying an intriguing morphology, have a "short" lifetime of a few tens of thousands of years, and have become one of the best studied classes of celestial sources. However, despite large and successful efforts from both the observational and theoretical side, planetary nebulae still keep some of their secrets (like the widely unknown distances) and will undoubtedly also be objects of thorough investigations in the years to come.

The Einstein Equations and the Large Scale Behavior of Gravitational Fields - 50 Years of the Cauchy Problem in General... The Einstein Equations and the Large Scale Behavior of Gravitational Fields - 50 Years of the Cauchy Problem in General Relativity (Hardcover)
Piotr T Chru sciel, Helmut Friedrich
R3,771 Discovery Miles 37 710 Ships in 12 - 17 working days

The Constraint Equations.- The Penrose Inequality.- The Global Existence Problem in General Relativity.- Smoothness at Null Infinity and the Structure of Initial Data.- Status Quo and Open Problems in the Numerical Construction of Spacetimes.- The Einstein-Vlasov System.- Future Complete U(1) Symmetric Einsteinian Spacetimes, the Unpolarized Case.- Future Complete Vacuum Spacetimes.- The Cauchy Problem on Spacetimes That Are Not Globally Hyperbolic.- Cheeger-Gromov Theory and Applications to General Relativity.- Null Geometry and the Einstein Equations.- Group Actions on Lorentz Spaces, Mathematical Aspects: A Survey.- Gauge, Diffeomorphisms, Initial-Value Formulation, Etc.

Astronomical Measurement - A Concise Guide (Hardcover, 2014 ed.): Andy Lawrence Astronomical Measurement - A Concise Guide (Hardcover, 2014 ed.)
Andy Lawrence
R2,415 Discovery Miles 24 150 Ships in 12 - 17 working days

This book on astronomical measurement takes a fresh approach to teaching the subject. After discussing some general principles, it follows the chain of measurement through atmosphere, imaging, detection, spectroscopy, timing, and hypothesis testing. The various wavelength regimes are covered in each section, emphasising what is the same, and what is different. The author concentrates on the physics of detection and the principles of measurement, aiming to make this logically coherent.
The book is based on a short self contained lecture course for advanced undergraduate students developed and taught by the author over several years.

Saturn, Chiron and the Centaurs (Hardcover): Melanie Reinhart Saturn, Chiron and the Centaurs (Hardcover)
Melanie Reinhart
R877 Discovery Miles 8 770 Ships in 12 - 17 working days

Saturn, Chiron and the Centaurs - To the Edge and Beyond by Melanie Reinhart. Part I - Saturn: Time. Heritage and Substance Material on Saturn, planet of "the edge" of structure, manifestation and the preservation of what has already been established. Traditional meanings of Saturn are explored in consideration of our contemporary condition of rapid change, and how this affects our relationship with our own Saturn. Mythological images discussed include the Greek Kronos and Pan, Parsifal and the Fool, and the processes of Alchemy and Karma. The traditional domicile of Saturn is reviewed, its transit cycle explored in detail, and the final section includes Saturn discussed through the 12 houses. Part II - The Centaurs: Chiron, Pholus and Nessus Brings ground-breaking new ideas drawn from recent astronomical discoveries in the outer solar system.Several new celestial objects that behave somewhatlike Chiron have been catalogued, and officially named "Centaurs." This unique compilation presents new material concerning the orbit cycle of Chiron, and a summary and elaboration of astrological research to date on Pholus, the second Centaur. In addition, original material on the meaning of the third Centaur, 1992HA2, 'Nessus' is included. This book is still the most comprehensive source of astrological information about the Centaurs. Their meaning is re-contextualised, and an ephemeris for Chiron, Pholus and Nessus is included, as well as several explanatory diagrams. All technical material was specially computed by Dieter Koch, and revised in 2011. The reader can participate in seminars where seed ideas were being expressed for the first time. There is enough material in this seminar for those interested to begin understanding the Centaurs in the horoscope.

Angular Momentum and Mass Loss for Hot Stars (Hardcover, 1990 ed.): L.A. Willson, R. Stalio Angular Momentum and Mass Loss for Hot Stars (Hardcover, 1990 ed.)
L.A. Willson, R. Stalio
R5,929 Discovery Miles 59 290 Ships in 10 - 15 working days

Fundamental unsolved problems of stellar astrophysics include the effects of angular momentum on stellar structure and evolution, the nature and efficiency of the processes by which angular momentum is redistributed within and lost from stars, and the role that stellar rotation plays in enhancing or driving stellar mass loss. There appears to be a qualitative change in the nature and efficiency of these mechanisms near spectral type FO: hotter (more massive) stars typically retain more angular momentum at least until they reach the main sequence, while cooler stars typically spin down quickly. For the hotter stars, recent work suggests a strong link between the type of pulsation behavior, the mass loss rates, and the rotation velocity. If the same mechanisms are able to drive mass loss from the main sequence A stars, as has recently been proposed, then the current interpretations of a number of observations will be drastically affected: e. g. the ages of clusters may be incorrect by up to a factor of two, and the surface abundances of isotopes of He, Li and Be may no longer give constraints on cosmological nucleosynthesis. There are also effects on the evolution of the abundances of elements in the interstellar medium and on the general evolution of populations of stars. Thus the questions of the mechanisms of angular momentum and mass loss of stars more massive than the sun is important not only for stellar studies but for the foundations of much of modern astrophysics.

NASA Systems Engineering Handbook (NASA/SP-2007-6105 Rev1) (Hardcover): Nasa Headquarters NASA Systems Engineering Handbook (NASA/SP-2007-6105 Rev1) (Hardcover)
Nasa Headquarters
R1,825 Discovery Miles 18 250 Ships in 12 - 17 working days

This FULL COLOR handbook consists of six core chapters: (1) systems engineering fundamentals discussion, (2) the NASA program/project life cycles, (3) systems engineering processes to get from a concept to a design, (4) systems engineering processes to get from a design to a final product, (5) crosscutting management processes in systems engineering, and (6) special topics relative to systems engineering. These core chapters are supplemented by appendices that provide outlines, examples, and further information to illustrate topics in the core chapters. The handbook makes extensive use of boxes and figures to define, refine, illustrate, and extend concepts in the core chapters without diverting the reader from the main information. The handbook provides top-level guidelines for good systems engineering practices; it is not intended in any way to be a directive. NASA/SP-2007-6105 Rev1 supersedes SP-6105, dated June 199

The Dynamics of Small Bodies in the Solar System - A Major Key to Solar Systems Studies (Hardcover, 1999 ed.): B. A. Steves,... The Dynamics of Small Bodies in the Solar System - A Major Key to Solar Systems Studies (Hardcover, 1999 ed.)
B. A. Steves, Archie E. Roy
R6,083 Discovery Miles 60 830 Ships in 10 - 15 working days

The reader will find in this volume the Proceedings of the NATO Advanced Study Institute held in Maratea-Acquafredda, Italy, between June 29 and July 12, 1997, entitledTHE DYNAMICS OF SMALL BODIES IN THE SOLAR SYSTEM: A MAJOR KEY TO SOLAR SYSTEM STUDIES . This Advanced Study Institute was the latest in the 'Cortina' series of NATO ASI's begun in the early 1970's firstly under the directorship of Professor Victor Szebehely and subsequently under Professor Archie Roy. All, except the latest, were held at the Antonelli Institute, Cortina d'Ampezzo, Italy. Many of those now active in the field made their first international contacts at these Institutes. The Institutes bring together many of the brightest of our young people working in dynamical astronomy, celestial mechanics and space science, enabling them to obtain an up-to-date synoptic view of their subjects delivered by lecturers of high international reputation. The proceedings from these institutes have been well-received in the internationalcommunity of research workers in the disciplines studied. The present institute included 15 series of lectures given by invited speakers and some 45 presentations made by the other participants. The majority of these contributions are includedinthese proceedings.

Stellar Physics - 1: Fundamental Concepts and Stellar Equilibrium (Hardcover, 2001 ed.): G.S. Bisnovatyi-Kogan Stellar Physics - 1: Fundamental Concepts and Stellar Equilibrium (Hardcover, 2001 ed.)
G.S. Bisnovatyi-Kogan; Translated by A.Y. Blinov, M. Romanova
R4,542 Discovery Miles 45 420 Ships in 12 - 17 working days

Stellar Physics is a rather unique book among the growing literature on star formation and evolution. Not only does the author, a leading expert in the field, give a very thorough description of the current knowledge about stellar physics but he handles with equal care the many problems that this field of research still faces. A bibliography with well over 650 entries makes this book an unparalleled source of references.Fundamental Concepts and Stellar Equilibrium is the first of two volumes, and can be read, as can the second volume, as an independent work. It provides an extensive introduction into all physical processes that play a role in star formation and evolution. The basic equations describing stellar equilibrium are discussed, where attention is paid to both the theoretical and the numerical aspects.

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