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Books > Science & Mathematics > Astronomy, space & time > Cosmology & the universe
From time immemorial, poets and philosophers have looked in awe and wonder at the Universe. Such awe is shared by astrophysicists, too, as they seek to understand its nature, and whether it has any limits. In The Infinite Cosmos, Joseph Silk, Savilian Professor of Astronomy at Oxford University, cosmologist and well-known science writer, brings together the modern understanding of the Universe, its structure, its evolution, and its possible fate, combining the latest from theory and observation. The narrative is peppered with quotations from literature and philosophy, and reflects, too, on the process of scientific discovery, and the implications of our discoveries.
'Great characters, fine writing, totally engrossing' STEPHEN KING It might have been the end of days. Instead it was the beginning of something shockingly new. They called the comet Cain, after the astronomer who discovered it. It passed 500,000 miles from Earth. We were spared planetary destruction and granted a light show like no other. But, one year later, Earth span into the debris field left by the comet and a meteor storm struck. Roads, buildings and even a small town were annihilated. The meteors impacted heavily around the dying mining town of Northfall, Minnesota. It was the night of a mysterious double murder, the deed overshadowed by the discovery that the burning remains of the rock contained an unknown substance more precious than gold: the Ninth Metal. And with that discovery, everything changed. Benjamin Percy is an award-winning novelist, celebrated comic books writer and author of the Wolverine podcast. The Ninth Metal is the first of a cycle of novels set in a shared universe. Praise for The Ninth Metal: 'Whether you choose to think of him as the Elmore Leonard of rural Minnesota or the Stephen King of Science Fiction, Percy - with his extraordinary and unrelenting eye - dishes up humanity like some kind of otherworldly blue plate special, at once deeply familiar and wildly new' Margaret Stohl, No. 1 New York Times Bestselling Author 'Take one part dystopia, one part sci-fi, two parts apocalypse, then ride them roughshod through a bleak and bloody western, and it still wouldn't get close to what Ben Percy does here, which is blow open the core of humanity's dark heart' Marlon James, Booker Prize winning author of Black Leopard, Red Wolf 'The Ninth Metal continues his streak of thrilling, incisive genre bending goodness. It's a sci-fi novel, a crime novel and a super-hero novel, too. Audacious and intelligent and exactly what I was dying to read' Victor LaValle, author of The Changeling
Self-organization of matter is observed in every context and on all scales, from the nanoscale of quantum fields and subatomic particles to the macroscale of galaxy superclusters. This book analyzes the wide range of patterns of organization present in nature, highlighting their similarities rather than their differences. This unconventional approach results in an illuminating read which should be part of any Physics student's background.
The role that neutrinos have played in the evolution of the Universe is the focus of one of the most fascinating research areas that has stemmed from the interplay between cosmology, astrophysics and particle physics. In this self-contained book, the authors bring together all aspects of the role of neutrinos in cosmology, spanning from leptogenesis to primordial nucleosynthesis, their role in CMB and structure formation, to the problem of their direct detection. The book starts by guiding the reader through aspects of fundamental neutrino physics, such as the standard cosmological model and the statistical mechanics in the expanding Universe, before discussing the history of neutrinos in chronological order from the very early stages until today. This timely book will interest graduate students and researchers in astrophysics, cosmology and particle physics, who work with either a theoretical or experimental focus.
Gamma-ray bursts (GRBs) are the most luminous explosions in the universe, which within seconds release energy comparable to what the Sun releases in its entire lifetime. The field of GRBs has developed rapidly and matured over the past decades. Written by a leading researcher, this text presents a thorough treatment of every aspect of the physics of GRBs. It starts with an overview of the field and an introduction to GRB phenomenology. After laying out the basics of relativity, relativistic shocks, and leptonic and hadronic radiation processes, the volume covers all topics related to GRBs, including a general theoretical framework, afterglow and prompt emission models, progenitor, central engine, multi-messenger aspects (cosmic rays, neutrinos, and gravitational waves), cosmological connections, and broader impacts on fundamental physics and astrobiology. It is suitable for advanced undergraduates, graduate students, and experienced researchers in the field of GRBs and high-energy astrophysics in general.
Our universe seems strangely "biophilic," or hospitable to life. Is this happenstance, providence, or coincidence? According to cosmologist Martin Rees, the answer depends on the answer to another question, the one posed by Einstein's famous remark: "What interests me most is whether God could have made the world differently." This highly engaging book explores the fascinating consequences of the answer being "yes." Rees explores the notion that our universe is just a part of a vast "multiverse," or ensemble of universes, in which most of the other universes are lifeless. What we call the laws of nature would then be no more than local bylaws, imposed in the aftermath of our own Big Bang. In this scenario, our cosmic habitat would be a special, possibly unique universe where the prevailing laws of physics allowed life to emerge. Rees begins by exploring the nature of our solar system and examining a range of related issues such as whether our universe is or isn't infinite. He asks, for example: How likely is life? How credible is the Big Bang theory? Rees then peers into the long-range cosmic future before tracing the causal chain backward to the beginning. He concludes by trying to untangle the paradoxical notion that our entire universe, stretching 10 billion light-years in all directions, emerged from an infinitesimal speck. As Rees argues, we may already have intimations of other universes. But the fate of the multiverse concept depends on the still-unknown bedrock nature of space and time on scales a trillion trillion times smaller than atoms, in the realm governed by the quantum physics of gravity. Expanding our comprehension of the cosmos, Our Cosmic Habitat will be read and enjoyed by all those--scientists and nonscientists alike--who are as fascinated by the universe we inhabit as is the author himself.
Our view of the Galaxy has recently been undergoing an increasing divergence from the traditional standpoint. In this book, ten authors discuss in eight chapters how the conceptions of the Milky Way have moved in new directions. Starting with the inner parsec and the Centre of the Galaxy, the book gradually moves on to the bulge and its relation to the globular clusters and to the disk, of which the presence of a bar is argued. A new look on the HI distribution in the disk, a synthesis of molecular line surveys and the study of stellar populations are discussed in the last three chapters.
This introduction to automorphic forms on adelic groups G(A) emphasises the role of representation theory. The exposition is driven by examples, and collects and extends many results scattered throughout the literature, in particular the Langlands constant term formula for Eisenstein series on G(A) as well as the Casselman-Shalika formula for the p-adic spherical Whittaker function. This book also covers more advanced topics such as spherical Hecke algebras and automorphic L-functions. Many of these mathematical results have natural interpretations in string theory, and so some basic concepts of string theory are introduced with an emphasis on connections with automorphic forms. Throughout the book special attention is paid to small automorphic representations, which are of particular importance in string theory but are also of independent mathematical interest. Numerous open questions and conjectures, partially motivated by physics, are included to prompt the reader's own research.
Astrophysics is the physics of the stars, and more widely the physics of the Universe. It enables us to understand the structure and evolution of planetary systems, stars, galaxies, interstellar gas, and the cosmos as a whole. In this Very Short Introduction, the leading astrophysicist James Binney shows how the field of astrophysics has expanded rapidly in the past century, with vast quantities of data gathered by telescopes exploiting all parts of the electromagnetic spectrum, combined with the rapid advance of computing power, which has allowed increasingly effective mathematical modelling. He illustrates how the application of fundamental principles of physics - the consideration of energy and mass, and momentum - and the two pillars of relativity and quantum mechanics, has provided insights into phenomena ranging from rapidly spinning millisecond pulsars to the collision of giant spiral galaxies. This is a clear, rigorous introduction to astrophysics for those keen to cut their teeth on a conceptual treatment involving some mathematics. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable
What happens when the country's greatest logician meets the century's greatest physicist? In the case of Kurt Godel and Albert Einstein the result in Godel's revolutioinary new model of the cosmos. In the 'Godel Universe' the philosophical fantasy of time travel becomes a scientific reality. For Godel, however, the reality of time travel signals the unreality of time. If Godel is right, the real meaning of the Einstein revolution had remained, for half a century, a secret. Now, half-century after Godel met Einstein, the real meaning of time travel in the Godel universe can be revealed.
Why do we exist? For centuries, this question was the sole province of religion and philosophy. But now science is ready to take a seat at the table. According to the prevailing scientific paradigm, the universe tends toward randomness; it functions according to laws without purpose, and the emergence of life is an accident devoid of meaning. But this bleak interpretation of nature is currently being challenged by cutting-edge findings at the intersection of physics, biology, neuroscience, and information theory-generally referred to as "complexity science." Thanks to a new understanding of evolution, as well as recent advances in our understanding of the phenomenon known as emergence, a new cosmic narrative is taking shape: Nature's simplest "parts" come together to form ever-greater "wholes" in a process that has no end in sight. In The Romance of Reality, cognitive neuroscientist Bobby Azarian explains the science behind this new view of reality and explores what it means for all of us. In engaging, accessible prose, Azarian outlines the fundamental misunderstanding of thermodynamics at the heart of the old assumptions about the universe's evolution, and shows us the evidence that suggests that the universe is a "self-organizing" system, one that is moving toward increasing complexity and awareness. Cosmologist and science communicator Carl Sagan once said of humanity that "we are a way for the cosmos to know itself." The Romance of Reality shows that this poetic statement in fact rests on a scientific foundation and gives us a new way to know the cosmos, along with a riveting vision of life that imbues existence with meaning-nothing supernatural required.
This work deals with the search for signatures of non-Gaussianities in the cosmic microwave background (CMB). Probing Gaussianity in the CMB addresses one of the key questions in modern cosmology because it allows us to discriminate between different models of inflation, and thus concerns a fundamental part of the standard cosmological model. The basic goal here is to adapt complementary methods stemming from the field of complexity science to CMB data analysis. Two key concepts, namely the method of surrogates and estimators for local scaling properties, are applied to CMB data analysis. All results show strong non-Gaussianities and pronounced asymmetries. The consistency of the full sky and cut sky results shows convincingly for the first time that the influence of the Galactic plane is not responsible for these deviations from Gaussianity and isotropy. The findings seriously call into question predictions of isotropic cosmologies based on the widely accepted single field slow roll inflation model.
A self-contained text, systematically presenting the determination and classification of exact solutions in three-dimensional Einstein gravity. This book explores the theoretical framework and general physical and geometrical characteristics of each class of solutions, and includes information on the researchers responsible for their discovery. Beginning with the physical character of the solutions, these are identified and ordered on the basis of their geometrical invariant properties, symmetries, and algebraic classifications, or from the standpoint of their physical nature, for example electrodynamic fields, fluid, scalar field, or dilaton. Consequently, this text serves as a thorough catalogue on 2+1 exact solutions to the Einstein equations coupled to matter and fields. The solutions are also examined from different perspectives, enabling a conceptual bridge between exact solutions of three- and four-dimensional gravities, and therefore providing graduates and researchers with an invaluable resource on this important topic in gravitational physics. Including contributions by David Chow, Christopher N. Pope and Ergin Sezgin (chapters 16-19).
This book presents a vivid argument for the almost lost idea of a unity of all natural sciences. It starts with the "strange" physics of matter, including particle physics, atomic physics and quantum mechanics, cosmology, relativity and their consequences (Chapter I), and it continues by describing the properties of material systems that are best understood by statistical and phase-space concepts (Chapter II). These lead to entropy and to the classical picture of quantitative information, initially devoid of value and meaning (Chapter III). Finally, "information space" and dynamics within it are introduced as a basis for semantics (Chapter IV), leading to an exploration of life and thought as new problems in physics (Chapter V). Dynamic equations - again of a strange (but very general) nature - bring about the complex familiarity of the world we live in. Surprising new results in the life sciences open our eyes to the richness of physical thought, and they show us what can and what cannot be explained by a Darwinian approach. The abstract physical approach is applicable to the origins of life, of meaningful information and even of our universe.
Gravitational lensing is a consequence of general relativity, where the gravitational force due to a massive object bends the paths of light originating from distant objects lying behind it. Using very little general relativity and no higher level mathematics, this text presents the basics of gravitational lensing, focusing on the equations needed to understand the phenomena. It then applies them to a diverse set of topics, including multiply imaged objects, time delays, extrasolar planets, microlensing, cluster masses, galaxy shape measurements, cosmic shear, and lensing of the cosmic microwave background. This approach allows undergraduate students and others to get quickly up to speed on the basics and the important issues. The text will be especially relevant as large surveys such as LSST and Euclid begin to dominate the astronomical landscape. Designed for a one semester course, it is accessible to anyone with two years of undergraduate physics background.
This White Paper describes the state of astrobiology in Europe today and its relation to the European society at large. With contributions from authors in twenty countries and over thirty scientific institutions worldwide, the document illustrates the societal implications of astrobiology and the positive contribution that astrobiology can make to European society. The White paper has two main objectives: 1. It recommends the establishment of a European Astrobiology Institute (EAI) as an answer to a series of challenges relating to astrobiology but also European research, education and the society at large. 2. It also acknowledges the societal implications of astrobiology, and thus the role of the social sciences and humanities in optimizing the positive contribution that astrobiology can make to the lives of the people of Europe and the challenges they face. This book is recommended reading for science policy makers, the interested public, and the astrobiology community.
You have just discovered the literary masterpiece that answers your questions about God, life in the inhabited universe, the history and future of this world, and the life of Jesus. The Urantia Book harmonizes history, science, and religion into a philosophy of living that brings new meaning and hope into your life. If you are searching for answers, read The Urantia Book! The world needs new spiritual truth that provides modern men and women with an intellectual pathway into a personal relationship with God. Building on the world's religious heritage, The Urantia Book describes an endless destiny for humankind, teaching that living faith is the key to personal spiritual progress and eternal survival. These teachings provide new truths powerful enough to uplift and advance human thinking and believing for the next 1000 years. A third of The Urantia Book is the inspiring story of Jesus' entire life and a revelation of his original teachings. This panoramic narrative includes his birth, childhood, teenage years, adult travels and adventures, public ministry, crucifixion, and 19 resurrection appearances. This inspiring story recasts Jesus from the leading figure of Christianity into the guide for seekers of all faiths and all walks of life.
This volume contains a number of essays by experts in areas of theoretical physics and astrophysics including cosmology, classical and quantum gravity, string theory and relativistic astrophysics. It will provide the reader with excellent reviews of current research in these frontier areas. Several of the essays emphasise alternative views of the Universe by leading astronomers and physicists who are known for their pioneering contributions. The volume is dedicated to Professor Jayant Narlikar, who has concerned himself with fundamental issues in cosmology and gravitation theory over a long and distinguished research career.
Recent advances in the understanding of star formation and evolution have been impressive and aspects of that knowledge are explored in this volume. The black hole stellar endpoints are studied and geodesic motion is explored. The emission of gravitational waves is featured due to their very recent experimental discovery.The second aspect of the text is space exploration which began 62 years ago with the Sputnik Earth satellite followed by the landing on the Moon just 50 years ago. Since then Mars has been explored remotely as well as flybys of the outer planets and probes which have escaped the solar system. The text explores many aspects of rocket travel. Finally possibilities for interstellar travel are discussed.All these topics are treated in a unified way using the Matlab App to combine text, figures, formulae and numeric input and output. In this way the reader may vary parameters and see the results in real time. That experience aids in building up an intuitive feel for the many specific problems given in this text.
On megaparsec scales, matter and galaxies have aggregated into a complex network of interconnected filaments, wall-like structures and compact clusters surrounded by large near-empty void regions. Dubbed the 'Cosmic Web', theoretical and observational studies have led to its recognition as a key aspect of structure in the Universe, representing a universal phase in the gravitationally driven emergence and evolution of cosmic structure. IAU Symposium 308 marked the centenary of the birth of the Russian physicist and cosmologist Yakov B. Zeldovich (1914-87), who was instrumental in the development of this view of structure formation. His seminal work paved the way towards an understanding of the complex web-like structure observed in our Universe. This volume synthesizes the insights obtained from many different observational and theoretical studies, and helps prepare researchers and students working in this vibrant field for the many upcoming surveys.
Whether stargazing with the naked eye or observing deep space with the largest telescopes in the world, humans have a seemingly neverending fascination with the stars. Our ancestors saw patterns in their random arrangement, inventing both tales of legendary heroes and the pastime of dot-to-dot in one fell swoop. But it's only in the last century or so that the natures of these distant lights have been revealed - and it's more incredible than any legend. How are stars born? How long do they live? And just how many times can you read the word 'trillion' before it starts sounding made up? Find out as astronomer Dr Greg Brown of Royal Observatory Greenwich takes a short diversion from obsessing over black holes to illuminate us about the lives of stars - ending in black holes, naturally.
The proceedings of IAU S317 offer an updated view of the stellar halos of galaxies, from the local universe to more distant systems, discussing differences and similarities among them. They review the results of ongoing large photometric and spectroscopic surveys and compare them to the predictions of new generation simulations at the forefront of our technical capabilities. Structures are analysed on both large and small scales, with attention given to the kinematical and chemical properties of their smallest and oldest components. A number of excellent reviews on state-of-the-art research, covering fields such as first stars, galactic archaeology, stellar halos in cosmological simulations, discrete constituents of stellar halos - from field, isolated stars to globular clusters and planetary nebulae - are accompanied by contributed papers presenting the results of original research by top-level specialists in the area. IAU S317 benefits researchers with interests encompassing stellar and galactic astrophysics and galaxy evolution. |
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