Bøger i Astronomy and Planetary Sciences serien

Even a suitable skeptic of certain pronouncements about the age and structure of the Universe should be pleased with the large steps that have been taken in furthering our understanding of the Universe since the early 1990's. In short, the Universe of our expectations rarely matches the Universe as it is discovered.

The main theme of the book is the presentation of techniques used to identify chaotic behavior in the evolution of conservative mechanical systems and their application to astronomical systems. It results from graduate courses given by the author over the years both at university and at several international summer schools.Along the book surfaces of section, Lyapunov characteristic exponents, frequency maps, MEGNO, dense grid maps, etc., are presented and discussed in connection with the applications. The initial chapter is devoted to the presentation of the main ideas of the chaotic dynamics of conservative systems in plain language so that they can be accessible to a wide range of professionals and students of physical sciences. The applications are mainly related to the motions in the solar system and extrasolar planetary systems.Another chapter is devoted to the applications to asteroids showing how the asteroidal belt is sculpted by chaos and resonances. The contrasting existence of gaps in the distribution of the asteroids and groups of asteroids in resonances is thoroughly discussed. The interest in applications to planetary systems is growing since the discovery of systems of resonant planets around some stars of the solar neighborhood. Exoplanets added a lot of cases to a problem that was before restricted to the planets of our solar system. The book includes an account of results already existing about compact systems.

"e;Astrophysics Updates"e; is intended to serve the information needs of professional astronomers and postgraduate students about areas of astronomy, astrophysics and cosmology that are rich and active research spheres. Observational methods and the latest results of astronomical research are presented as well as their theoretical foundations and interrelations. The contributed commissioned articles are written by leading exponents in a format that will appeal to professional astronomers and astrophysicists who are interested in topics outside their own specific areas of research. This collection of timely reviews may also attract the interest of advanced amateur astronomers seeking scientifically rigorous coverage.

The Ulysses observations have charted the heliosphere around the minimum in the 11 year cycle of solar activity, revealing the large scale properties of the heliospheric medium and its micro-scale characteristics. This book presents for the first time, a comprehensive review of the results of the Ulysses mission.The first chapter provides an overview of the region, introducing the heliosphere prior to the Ulysses mission, and the objectives and characteristics of the mission itself. Subsequent chapters discuss in detail specific areas of the heliosphere, including the solar wind, large and small scale features, cosmic rays and energetic particles, and the observations of interstellar gas and cosmic dust. Each of these chapters is written by members of the Ulysses science team, concentrating on their own areas of expertise, and is written in a clear and accessible way.In this book, the authors aim to summarise our understanding of the heliosphere near solar minimum and to provide the basis for understanding the more complex state of the heliosphere around solar maximum, which will be observed during the next phase of the Ulysses mission.

This book provides an up-to-date interdisciplinary geoscience-focused overview of solid solar system bodies and their evolution, based on the comparative description of processes acting on them.Planetary research today is a strongly multidisciplinary endeavor with efforts coming from engineering and natural sciences. Key focal areas of study are the solid surfaces found in our Solar System. Some have a direct interaction with the interplanetary medium and others have dynamic atmospheres. In any of those cases, the geological records of those surfaces (and sub-surfaces) are key to understanding the Solar System as a whole: its evolution and the planetary perspective of our own planet.This book has a modular structure and is divided into 4 sections comprising 15 chapters in total. Each section builds upon the previous one but is also self-standing. The sections are: Methods and toolsProcesses and Sources Integration and Geological SynthesesFrontiersThe latter covers the far-reaching broad topics of exobiology, early life, extreme environments and planetary resources, all areas where major advancements are expected in the forthcoming decades and both key to human exploration of the Solar System.The target readership includes advanced undergraduate students in geoscience-related topics with no specific planetary science knowledge; undergraduates in other natural science domains (e.g. physics, astronomy, biology or chemistry); graduates in engineering and space systems design who want to complement their knowledge in planetary science.The authors' backgrounds span a broad range of topics and disciplines: rooted in Earth geoscience, their expertise covers remote sensing and cartography, field mapping, impact cratering, volcanology and tectonics, sedimentology and stratigraphy exobiology and life in extreme environments, planetary resources and mining. Several generations of planetary scientists are cooperating to provide a modern view on a discipline developed from Earth during and through Space exploration.

Markus Aschwanden introduces the concept of self-organized criticality (SOC) and shows that due to its universality and ubiquity it is a law of nature for which he derives the theoretical framework and specific physical models in this book.

This book offers a uniform collection of probe and CCD terrestrial images for each lunar dome, and presents information on morphological measurements and rheologic properties including a novel classification system and a new map of the distribution of domes.

Solar sail orbital dynamics and solar radiation pressure form the foundations of the book, but the engineering design of solar sails is also considered, along with potential mission applications.

Examines each of these parameters in crucial depth and makes the argument that life forms we would recognize may be more common in our solar system than many assume. Considers exotic forms of life that would not have to rely on carbon as the basic chemical element, solar energy as the main energy source, or water as the primary solvent and the question of detecting bio- and geosignatures of such life forms, ranging from earth environments to deep space.Seeks an operational definition of life and investigate the realm of possibilities that nature offers to realize this very special state of matter. Avoids scientific jargon wherever possible to make this intrinsically interdisciplinary subject understandable to a broad range of readers.

This book begins by reviewing quasars, microquasars, and gamma-ray bursts and shows why black holes are responsible for them. It describes simple, isolated black holes, adding rotation, accretion, radiation and magnetic fields, to show how these objects work.

The new edition of this comprehensive reference on astronomy observation methods and techniques includes recent developments in astronomical detectors and instrumentation, from the invention of the CCD in 1970 to the current era of huge telescopes.

There has been very considerable progress in research into low-mass stars, brown dwarfs and extrasolar planets during the past few years, particularly since the fist edtion of this book was published in 2000.

Studies of stellar formation in galaxies have a profound impact on our understanding of the present and the early universe. It illustrates how these processes reveal themselves from radio wavelengths to high energy X-rays and gamma -rays, with special reference towards high energy signatures.

Cosmic rays are an essential part of the universe. This book reviews our present knowledge of cosmic rays, describing how they are born in a wide range of cosmic processes, how they are accelerated and how they behave during their journey across the Galaxy.

Understanding how the Sun changes though its 11-year sunspot cycle and how these changes affect the vast space around the Sun - the heliosphere - has been one of the principal objectives of space research since the advent of the space age.

This book takes a new approach on teaching the subject by following the chain of measurement through atmosphere, imaging, detection, spectroscopy, timing and hypothesis testing. It covers all wavelengths: radio, infrared, optical, UV, X-ray, gamma-ray.

Beginning with basic facts about the observable universe, this book reviews the complete range of topics that make up a degree course in cosmology and particle astrophysics. This paperback edition targets students of physics, astrophysics and cosmology from advanced undergraduate to early graduate level.

This is the first collection of review articles in one volume covering the very latest developments in exoplanet research. The reviews cover topics such as the properties of known exoplanets and searching for exoplanets in the stellar graveyard.

GRBs remain a subject of fascination for scientists, despite having been known about for 35 years. Both authors have been active in GRB observations for more than two decades, so this is an outstanding account of the history and perspectives of GRB research.

This book reviews the current state of knowledge of the atmospheres of the giant gaseous planets: Jupiter, Saturn, Uranus, and Neptune. This second edition has been extensively updated in light of what has newly been discovered by the Cassini probe.

This book discusses the beginnings of the process of galaxy formation from cosmological observations and calculations. It also considers the broad features of galaxies that we need to explain and what we know of their later history.

This overview of classical celestial mechanics focuses the interplay with dynamical systems. Paradigmatic models introduce key concepts - order, chaos, invariant curves and cantori - followed by the investigation of dynamical systems with numerical methods.

This book reviews the past 50 years of SETI searches. It demonstrates high level mathematical techniques for the solution of a variety of SETI problems. Includes a full mathematical derivation of the Statistical Drake Equation and describes its applications.

Today they can be done using self-designed spectrographs and highly efficient CCD cameras, without the need for large financial investments.This book explains the basic principles of spectroscopy, including the fundamental optical constraints and all mathematical aspects needed to understand the working principles in detail.

A thorough introduction to solar physics based on recent spacecraft observations. The author introduces the solar corona and sets it in the context of basic plasma physics before moving on to discuss plasma instabilities and plasma heating processes.

Written by leading exponents in the field, this collection of timely reviews presents observational methods and the latest results of astronomical research as well as their theoretical foundations and interrelations, providing information and scientifically rigorous coverage.

Until the Apollo-Soyuz flight of 1972, the Russian Space Program was shrouded in such complete secrecy that only rumors of failures (or catastrophes) reached the West.