This prize-winning thesis deals with the observation and modeling of the spectral evolution of blazars. Based on single-dish light curves, a model of shock-shock interaction is tested and confirmed using multi-frequency high resolution Very Long Baseline Observations. He presents state-of-the art numerical relativistic hydrodynamic simulations and the corresponding non-thermal emission is calculated (eRHD simulations). The author further presents new analysis techniques for VLBI observations that can be applied to numerous sources and provide reliable results including an error estimate using Monte Carlo simulations. He also develops an analytical shock model that can be applied quickly to other single dish observations. He shows how novel techniques of extraction of physical parameters from observations can be applied to other astrophysical sources and provide a link to a better understanding of the physical mechanism operating in blazar jets.

The way mankind has responded to the dark sky throughout history has determined humanity's scientific - and cultural - progress. In this way, astronomy is in some way connected to everything. This fascinating theme is explored in Dark Sky Legacy.
George Reed examines the powerful influence of the cosmos on cultural and societal development, reviewing mankind's historical propensity for projecting human experience into a cosmic framework and the centuries-old relationship between astronomy and astrology, the result of which is the emergence of the age of science. Since then, he writes, the purpose of astronomy has been to observe celestial objects for the advancement of scientific knowledge, while astrology deals only in the possibility that celestial bodies influence events on Earth.
Reed asserts that the movement away from an inward-looking, "meaningful" cosmos toward an outward-gazing, impersonal one is a shift that has had enormous repercussions in every aspect of human life. He points out that astrology provides a scheme in which the believer is an integral component of an animistic, cyclical universe. Conversely, the pursuit of science and astronomy is a mechanistic, linear activity, which seeks extrinsic answers in terms of precise relationships between sense perceptions.
Dark Sky Legacy probes the divergent approaches to the universe that compel individuals and cultures to pursue astrology or astronomy, the intuitive or the analytical. Blending modern science, ancient science, mythology, history, literature, and naked-eye astronomy, and spiced with fascinating detail about astronomy, astrology, celestial mythology, and calendar development, the book is an engrossing study of the profound impact of mankind's relationship with the universe.

To commemorate the 400th anniversary of Galileo's historic first recorded astronomical observations and to coincide with the United Nations International Year of Astronomy 2009, Horwood Publishing is delighted to announce the publication of this third edition by Sir Patrick Moore, one of the great presenters of astronomy in our time. It tells the epic story of the historical development of astronomy which caused a revolutionary change in human outlook, in its impact upon both scientific thinking and religious belief. It is a fascinating story, well researched and told in a scholarly yet exciting narrative that will be read with enjoyment and profit astronomers, historians and the general public. Formerly titled The Great Astronomical Revolution, the book includes a new foreword, new illustrations and colour plates, due Autumn 2009.

To commemorate the 400th anniversary of Galileo's historic first recorded astronomical observations and to coincide with the United Nations International Year of Astronomy 2009, Horwood Publishing is delighted to announce the publication of this third edition by Sir Patrick Moore, one of the great presenters of astronomy in our time. It tells the epic story of the historical development of astronomy which caused a revolutionary change in human outlook, in its impact upon both scientific thinking and religious belief. It is a fascinating story, well researched and told in a scholarly yet exciting narrative that will be read with enjoyment and profit astronomers, historians and the general public. Formerly titled The Great Astronomical Revolution, the book includes a new foreword, new illustrations and colour plates, due Autumn 2009.

This book discusses the state of the art of the basic theoretical and observational topics related to black hole astrophysics. It covers all the main topics in this wide field, from the theory of accretion disks and formation mechanisms of jet and outflows, to their observed electromagnetic spectrum, and attempts to measure the spin of these objects. Black holes are one of the most fascinating predictions of general relativity and are currently a very hot topic in both physics and astrophysics. In the last five years there have been significant advances in our understanding of these systems, and in the next five years it should become possible to use them to test fundamental physics, in particular to predict the general relativity in the strong field regime. The book is both a reference work for researchers and a textbook for graduate students.

In 1988, in an article on the analysis of the measurements of the variations in the radial velocities of a number of stars, Campbell, Walker, and Yang reported an - teresting phenomenon;the radial velocity variations of Cephei seemed to suggest the existence of a Jupiter-like planet around this star. This was a very exciting and, at the same time, very surprising discovery. It was exciting because if true, it would have marked the detection of the ?rst planet outside of our solar system. It was surprising because the planet-hosting star is the primary of a binary system with a separation less than 19 AU, a distance comparable to the planetary distances in our solar system. The moderatelyclose orbit of the stellar companionof Cephei raised questions about the reality of its planet. The skepticism over the interpretation of the results (which was primarily based on the idea that binary star systems with small sepa- tions would not be favorable places for planet formation) became so strong that in a subsequent paper in 1992, Walker and his colleagues suggested that the planet in the Cephei binary might not be real, and the variations in the radial velocity of this star might have been due to its chromospheric activities.

This outstanding thesis by Dominic Bowman provides a thorough investigation of long-standing questions as to whether amplitude modulation is astrophysical, whether it offers insights into pulsating stars, and whether simple beating of modes with stable amplitudes is unrecognised because of a lack of frequency resolution. In this thesis, the author studied a uniform sample of 983 delta Scuti stars-the most common type of main-sequence heat engine pulsator-that were observed nearly continuously for 4 years at stunning photometric precision of only a few parts per million by the Kepler space mission. With no mission planned to supersede the Kepler 4-year data set, this thesis will stand as the definitive study of these questions for many years. With revolutionary photometric data from the planet-hunting Kepler space mission, asteroseismic studies have been carried out on many hundreds of main-sequence solar-type stars and about 10,000 red giants. It is easy to understand why those stochastically driven stars have highly variable amplitudes. Over much of the rest of the Hertzsprung-Russell (HR) diagram, stellar pulsations are driven by heat mechanisms, which are much more regular than the stochastic driving in solar-like pulsators. Yet for decades, amplitude and frequency modulation of pulsation modes have been observed in almost all types of heat-driven pulsating stars. The author shows that the amplitude and frequency modulation are astrophysical, and he has investigated their implications and prospects to provide new insights into the delta Scuti stars and the many other types of heat-engine pulsators across the HR diagram.

Over the last fifteen years, space-based exploration of the solar system has increased dramatically, with more and more sophisticated orbiters and landers being sent to Mars. This intense period, rich in unprecedented scientific results, has led to immense progress in our perception of Mars and of its evolution over geological time. In parallel, advances in numerical simulations and laboratory experiments also shed new light on the geochemical evolution of the planet Mars. The ISSI-Europlanet Workshop entitled "Quantifying the Martian Geochemical Reservoirs" was held in Bern in April 2011 with the objective to create a diverse interdisciplinary forum composed of scientists directly involved in space-based exploration of the Martian surface, meteoriticists studying SNC meteorites, and planetary and/or Earth scientists simulating, numerically or experimentally, the physical and chemical processes occurring on or within Mars. The chapters of this book provide an overview of current knowledge of the past and present Martian geochemical reservoirs, from the accretionary history to the secondary alteration processes at the surface. In addition to the detailed description of data from Mars and the methods used to obtain them, the contributions also emphasize comparison with features on Earth, providing a perspective on the extent to which our knowledge of terrestrial systems influences interpretation of data from Mars. Areas that would benefit from future work and measurements are also identified, providing a view of the short-term and long-term future of the study of Mars. This collection of chapters constitutes a timely perspective on current knowledge and thinking concerning the geochemical evolution of Mars, providing context and a valuable reference point for even more exciting future discoveries. It is aimed at graduate students and researchers active in geochemistry and space science. Previously published in Space Science Reviews, Vol. 174/1-4, 2013.

The journey into space is a dangerous one, and although some aspects of space travel seem to be routine it still takes humanity to the limits of what is technically possible. It is an environment that forgives no mistake, and where carelessness usually has fatal consequences. This book records more than a dozen American and Soviet space disasters from 1967 to the present day. Presented are tragic and near tragic missions such as NASA's Gemini 6A and 8, Apollo 1 and 13, the Challenger and Columbia space shuttle disasters, as well as the Soviets' Soyuz 1, 11, and 18-1, and more. The concise and detailed history is presented along with rare photographs, transcripts of mission conversations, as well as detailed timelines.

For too long, the Earth has been used to ground thought instead of bending it; such grounding leaves the planet as nothing but a stage for phenomenology, deconstruction, and other forms of anthropocentric philosophy. In far too much continental philosophy, the Earth is a cold dead place enlivened only by human thought-either as a thing to be exploited, or as an object of nostalgia. Geophilosophy seeks instead to question the ground of thinking itself, the relation of the inorganic to the capacities and limits of thought. This book constructs an eclectic variant of geophilosophy through engagements with digging machines, cyclones and volcanoes, secret vessels, nuclear waste, giant worms, decay, hell, demon souls, subterranean cities, black suns, and xenoarcheaology, via continental theory (Nietzsche, Schelling, Deleuze, et alia) and various cultural objects such as horror films, videogames, and weird Lovecraftian fictions, with special attention to Speculative Realism and the work of Reza Negarestani. In a time where the earth as a whole is threatened by ecological collapse, On an Ungrounded Earth generates a perversely realist account of the earth as a dynamic engine materially invading and upsetting our attempts to reduce it to the ground beneath our feet.

This PhD thesis details the development of a new 1D ionospheric model to describe the upper atmospheres of extrasolar giant plants. The upper atmospheres of Hot Jupiters are subject to extreme radiation conditions that can result in rapid atmospheric escape. The composition and structure of these planets' upper atmospheres are affected by high-energy emissions from the host star. The nature of these emissions depends on the stellar type and age, making them important factors in understanding the behaviour of exoplanetary atmospheres.

Targeting advanced students of astronomy and physics, as well as astronomers and physicists contemplating research on supernovae or related fields, David Branch and J. Craig Wheeler offer a modern account of the nature, causes and consequences of supernovae, as well as of issues that remain to be resolved. Owing especially to (1) the appearance of supernova 1987A in the nearby Large Magellanic Cloud, (2) the spectacularly successful use of supernovae as distance indicators for cosmology, (3) the association of some supernovae with the enigmatic cosmic gamma-ray bursts, and (4) the discovery of a class of superluminous supernovae, the pace of supernova research has been increasing sharply. This monograph serves as a broad survey of modern supernova research and a guide to the current literature. The book's emphasis is on the explosive phases of supernovae. Part 1 is devoted to a survey of the kinds of observations that inform us about supernovae, some basic interpretations of such data, and an overview of the evolution of stars that brings them to an explosive endpoint. Part 2 goes into more detail on core-collapse and superluminous events: which kinds of stars produce them, and how do they do it? Part 3 is concerned with the stellar progenitors and explosion mechanisms of thermonuclear (Type Ia) supernovae. Part 4 is about consequences of supernovae and some applications to astrophysics and cosmology. References are provided in sufficient number to help the reader enter the literature.

Is the universe designed for life? Physicists have discovered that many seemingly unconnected phenomena, which took place millions of years apart, played a crucial role in the development of life on Earth. Does such evidence reveal a purpose behind the order of the universe?
NASA senior research scientist Carlos I. Calle explores this tantalizing question and many more in this wide-ranging introduction to the very latest and sundry theories about the origins and evolution of the enormous cosmos. From the big bang to the possibility of a "big crunch" he renders the complexities of theoretical physics beautifully lucid for the lay reader.
Calle begins by reviewing the milestones of 20th-century astrophysics: the confirmation of the big bang theory in the 1960s by the discovery of cosmic background radiation; the inflationary theory of universe expansion, which NASA observations have recently confirmed; the formulation of the essential laws of physics that govern the unfolding of all physical processes, from subatomic fluctuations to the formation of galaxies; and physicists' attempts to unify all the forces of nature.
Now, at the start of the 21st century, questions have been raised about the origins of the laws of physics. Do they suggest a Grand Designer, or is their existence a natural outcome of some automatic process? Calle lays out the cosmological models based on M-theory, which suggests that our particular universe may be one of an unimaginable number of universes, each with its own set of physical laws. According to one of the most promising models, the big bang may not be the moment of creation but the bridge to a past filled with endless cycles of universe creation and destruction.
Calle also provides an exciting look at Stephen Hawking's fascinating proposal that the universe had no origin--and that present-day observers may influence the very nature of reality.
Did the universe require a prime mover--the Grand Designer--to create the planets, the stars, and the galaxies? The Universe--Order without Design will give you plenty of food for thought.

Solar energetic particles (SEPs) emitted from the Sun are a major space weather hazard motivating the development of predictive capabilities. This book presents the results and findings of the HESPERIA (High Energy Solar Particle Events forecasting and Analysis) project of the EU HORIZON 2020 programme. It discusses the forecasting operational tools developed within the project, and presents progress to SEP research contributed by HESPERIA both from the observational as well as the SEP modelling perspective. Using multi-frequency observational data and simulations HESPERIA investigated the chain of processes from particle acceleration in the corona, particle transport in the magnetically complex corona and interplanetary space, to the detection near 1 AU. The book also elaborates on the unique software that has been constructed for inverting observations of relativistic SEPs to physical parameters that can be compared with space-borne measurements at lower energies. Introductory and pedagogical material included in the book make it accessible to students at graduate level and will be useful as background material for Space Physics and Space Weather courses with emphasis on Solar Energetic Particle Event Forecasting and Analysis. This book is published with open access under a CC BY license.

"Quantum Gravitation" approaches the subject from the point of view of Feynman path integrals, which provide a manifestly covariant approach in which fundamental quantum aspects of the theory such as radiative corrections and the renormalization group can be systematically and consistently addressed. It is shown that the path integral method is suitable for both perturbative as well as non-perturbative studies, and is already known to offer a framework for the theoretical investigation of non-Abelian gauge theories, the basis for three of the four known fundamental forces in nature. The book thus provides a coherent outline of the present status of the theory gravity based on Feynman s formulation, with an emphasis on quantitative results.

Topics are organized in such a way that the correspondence to similar methods and results in modern gauge theories becomes apparent. Covariant perturbation theory are developed using the full machinery of Feynman rules, gauge fixing, background methods and ghosts. The renormalization group for gravity and the existence of non-trivial ultraviolet fixed points are investigated, stressing a close correspondence with well understood statistical field theory models. The final chapter addresses contemporary issues in quantum cosmology such as scale dependent gravitational constants and quantum effects in the early universe."

Due to its specific chemical and physical properties, water is essential for life on Earth. And it is assumed that this would be the case for extraterrestrial life as well. Therefore it is important to investigate where water can be found in the Universe. Although there are places that are completely dry, places where the last rainfall happened probably several 100 million years ago, surprisingly this substance is quite omnipresent. In the outer solar system the large satellites of Jupiter and Saturn are covered by a thick layer of ice that could be hiding a liquid ocean below. This of course brings up the question of whether the recently detected extrasolar planets could have some water on their surfaces and how we can detect this. Water molecules are also found in interstellar gas and dust clouds. This book begins with an introductory chapter reviewing the physical and chemical properties of water. Then it illuminates the apparent connection between water and life. This is followed by chapters dealing with our current knowledge of water in the solar system, followed by a discussion concerning the potential presence and possible detection of water on exoplanets. The signature of water in interstellar space and stars are reviewed before the origin of water in the Universe is finally discussed. The book ends with an appendix on detection methods, satellite missions and astrophysical concepts touched upon in the main parts of the book. The search for water in the Universe is related to the search for extraterrestrial life and is of fundamental importance for astrophysics, astrobiology and other related topics. This book therefore addresses students and researchers in these fields.

This volume documents the contributions presented at the Seventh Scientific Meeting of the Spanish Astronomical Society (Sociedad Espanola de Astronomia, SEA). The event bought together 301 participants who presented 161 contributed talks and 120 posters, the greatest numbers up to now. The fact that most exciting items of the current astronomical research were addressed in the meeting proofs the good health of the SEA, a consolidated organization founded fifteen years ago in Barcelona. Two plenary sessions of the meeting were devoted to the approved entrance of Spain as a full member of the European Southern Observatory (ESO) and to the imminent first light of the greatest telescope in the world, the GTC (Gran Telescopio de Canarias), milestones that will certainly lead the Spanish Astronomy in the next future."

Everyone knows that there are things no one can see, for example, the air you're breathing or a black hole, to be more exotic. But not everyone knows that what we can see makes up only 5 percent of the Universe. The rest is totally invisible to us.

The invisible stuff comes in two varieties--dark matter and dark energy. One holds the Universe together while the other tears it apart. What these forces really are has been a mystery for as long as anyone has suspected they were there, but the latest discoveries of experimental physics have brought us closer to that knowledge. Particle physicist Dan Hooper takes his readers, with wit, grace, and a keen knack for explaining the toughest ideas science has to offer, on a quest few would ever have expected: to discover what makes up our dark cosmos.

Ptolemy was the most important physical scientist of the Roman Empire, and for a millennium and a half his writings on astronomy, astrology, and geography were models for imitation, resources for new work, and targets of criticism. Ptolemy in Perspective traces reactions to Ptolemy from his own times to ours. The nine studies show the complex processes by which an ancient scientist and his work gained and subsequently lost an overreaching reputation and authority.

In this book, renowned scientists describe the various techniques used to detect and characterize extrasolar planets, or exoplanets, with a view to unveiling the "tricks of the trade" of planet detection to a wider community. The radial velocity method, transit method, microlensing method, and direct imaging method are all clearly explained, drawing attention to their advantages and limitations and highlighting the complementary roles that they can play in improving the characterization of exoplanets' physical and orbital properties. By probing the planetary frequency at different distances and in different conditions, these techniques are helping astrophysicists to reconstruct the scenarios of planetary formation and to give robust scientific answers to questions regarding the frequency of potentially habitable worlds. Twenty years have passed since the discovery of a Jupiter-mass companion to a main sequence star other than the Sun, heralding the birth of extrasolar planetary research; this book fully conveys the exciting progress that has been achieved during the intervening period.

Why should there be anything at all? Why, in particular, should a material world exist? Bede Rundle advances clear, non-technical answers to these perplexing questions. If, as the theist maintains, God is a being who cannot but exist, his existence explains why there is something rather than nothing. However, this can also be explained on the basis of a weaker claim. Not that there is some particular being that has to be, but simply that there has to be something or other. Rundle proffers arguments for thinking that that is indeed how the question is to be put to rest. Traditionally, the existence of the physical universe is held to depend on God, but the theist faces a major difficulty in making clear how a being outside space and time, as God is customarily conceived to be, could stand in an intelligible relation to the world, whether as its creator or as the author of events within it. Rundle argues that a creator of physical reality is not required, since there is no alternative to its existence. There has to be something, and a physical universe is the only real possibility. He supports this claim by eliminating rival contenders; he dismisses the supernatural, and argues that, while other forms of being, notably the abstract and the mental, are not reducible to the physical, they presuppose its existence. The question whether ultimate explanations can ever be given is forever in the background, and the book concludes with an investigation of this issue and of the possibility that the universe could have existed for an infinite time. Other topics discussed include causality, space, verifiability, essence, existence, necessity, spirit, fine tuning, and laws of Nature. Why There Is Something Rather Than Nothing offers an explanation of fundamental facts of existence in purely philosophical terms, without appeal either to theology or cosmology. It will provoke and intrigue anyone who wonders about these questions.