Fascinating, engaging and extremely visual, STARS AND GALAXIES, 10th Edition, is renowned for its current coverage, reader-friendly presentation and detailed--yet clear--explanations. The authors' goals are to help you use Astronomy to understand science, and use science to answer two fundamental questions: What are we? And how do we know? Available with WebAssign, the powerful digital solution that enriches the teaching and learning experience. It includes Virtual Astronomy Labs 3.0--a set of 20 interactive activities that combine analysis of real astronomical data with robust simulations--providing a true online laboratory experience for your Introductory Astronomy course.

In The Infinite Cosmos Joseph Silk takes the reader on a tour of the universe, past, present, and future, showing how the very latest observations and theories are unlocking clues about its origin and structure: X-ray, radio, and high-energy views of space are revealing fossil radiation left over from the big bang and providing us with unprecedented views of the most distant reaches of the universe. Theories from the frontiers of current research seek to explain its structure from the first moments to the present day, and we are beginning to understand its extraordinary nature and possible fate. This is a story involving the visible and the invisible; subatomic particles and unusual forces; long ages of darkness and spectacular and violent events. It tells of supernovae, dark matter, dark energy, curved spacetime, colliding galaxies, and supermassive black holes. Weaving the ideas of poets and writers as well as scientists into the story, from Kant and Keats to Einstein and Lemaitre, Silk explains our present state of knowledge, and how much more there is to understand about our infinite cosmos.

Illustrated with breathtaking images of the Solar System and of the Universe around it, this book explores how the discoveries within the Solar System and of exoplanets far beyond it come together to help us understand the habitability of Earth, and how these findings guide the search for exoplanets that could support life. The author highlights how, within two decades of the discovery of the first planets outside the Solar System in the 1990s, scientists concluded that planets are so common that most stars are orbited by them. The lives of exoplanets and their stars, as of our Solar System and its Sun, are inextricably interwoven. Stars are the seeds around which planets form, and they provide light and warmth for as long as they shine. At the end of their lives, stars expel massive amounts of newly forged elements into deep space, and that ejected material is incorporated into subsequent generations of planets. How do we learn about these distant worlds? What does the exploration of other planets tell us about Earth? Can we find out what the distant future may have in store for us? What do we know about exoworlds and starbirth, and where do migrating hot Jupiters, polluted white dwarfs, and free-roaming nomad planets fit in? And what does all that have to do with the habitability of Earth, the possibility of finding extraterrestrial life, and the operation of the globe-spanning network of the sciences?

This scarce antiquarian book is included in our special Legacy Reprint Series. In the interest of creating a more extensive selection of rare historical book reprints, we have chosen to reproduce this title even though it may possibly have occasional imperfections such as missing and blurred pages, missing text, poor pictures, markings, dark backgrounds and other reproduction issues beyond our control. Because this work is culturally important, we have made it available as a part of our commitment to protecting, preserving and promoting the world's literature.

This Carg ese school of Particle physics is meant to bridge the narr- ing gap between astrophysical observations and particle physics. The lectures supply the students with a theoretical background which covers severalaspectsofthecosmologicalscenario: matter-antimatterasym- try, the nature of dark matter, the acceleration of the expansion and the cosmological constant and the geometry of the universe as well as m- ernviewsonparticlephysicsincludingsupersymmetry, extradimensions scenarii and neutrino oscillations. ix Preface TheinvestigationofnuclearabundancesbyAlpher, Bethe, andGamow (1948) was the ?rst intrusion of subatomic physics into cosmology. In contrast with their assumption, most nuclear species are now known to be produced in stars, but their bold step led to predictions which have largely been proven to be right: -a crude estimate of the densities during primordial nucleosynthesis -the presence of a residual 3K radiation today. the issues they addressed are still relevant. The origin of matter is not fully understood, and the CMB has grown into a powerful tool to inv- tigate the early eras of the universe. The progress of cosmological observations has now led to a 'standard' slow-roll in?ation model, which accounts quantitatively for many - served features of the universe. As the lectures will show, it still leaves large unchartered areas, and the underlying particle physics aspects are yettobeelucidated.

The Moon is not just a static piece of cosmic matter in our night sky, but a dynamic living being. Throughout her journey around the Earth which takes about 29.5 days she shows us her different faces, growing from a silver sliver in the sky to an awe-inspiring illuminated sphere, before returning to darkness again. She changes colour and moves through a variety of star constellations reflecting the energies at play each day. The Moon gives us a map to a cyclical way of living; the blueprint for a life that breathes in harmony with the rhythm of the natural world around us. She teaches us about the importance of embracing quiet and reflective times as much as celebrating the times we experience life in its fullest expression. She informs us when to plant the seeds of our dreams and when to take stock and harvest what we have been growing. What will you discover about yourself when you tune into the moon?

The optics of small particles are useful in the interpretation of observational phenomena related to extinction, scattering and emission of radiation by dust grains in space. This review presents three components of dust modelling: Optical constants; Light scattering theories and models. The author aims to show how the general laws of the optics of dust particleswork and to highlight the information about cosmic dust. Part II will be dedicated to the consideration of scattered radiation, dust absorption and emission, radiation pressure and dust properties.

Reviewing the fundamental instrumental techniques and current observational results, this book unveils the mysteries of the physical processes in the central parsec of our Milky Way: the super-massive black hole embedded in a central stellar cluster as well as the gas and dust in the circumnuclear region. The observations described cover the entire electromagnetic spectrum from decimeter radio-waves to high energy X-ray and γ -rays, and a comprehensive summary of up-to-date astrophysical interpretations is given. The emphasis is put on observational techniques, image processing aspects, and a detailed presentation of the most cutting-edge work carried out in the near-infrared wavelength regime. These recent results include both the first orbits of stars around the central black hole and the multiwavelength variability of the central source.

Thoroughly revised, expanded and updated throughout, this new edition of Astrophysics of GaseousNebulae and Active Galactic Nuclei is a graduate-level text and reference book on gaseous nebulae, nova and supernova remnants, and the emission-line regions in Seyfert galaxies, radio galaxies, quasars, and other types of active galactic nuclei. Much of the new data and many of the new images are from the Hubble Space Telescope and some of the largest ground-based telescopes in the world. Two wholly new chapters have been added, one on infrared astronomy and the other on X-ray astronomy, reflecting the great advances in these fields. This new edition also contains two completely new appendices, one a long primer on the quantum-mechanical concepts used in the analysis of nebular emission-line spectra, and the other a briefer description of molecular spectra. Large amounts of new data on dust in nebulae and quasars, and the photo-dissociated regions containing neutral atoms, molecules, and dust within and around them, have also been added to the book. Thus, the previous edition of this classic text, which has been tried, tested, and widely used for thirty years, has now been succeeded by a new, revised, updated, larger edition, which will be valuable to anyone seriously interested in astrophysics.

It is generally believed that most of the matter in the universe is dark, i.e. cannot be detected from the light which it emits (or fails to emit). Its presence is inferred indirectly from the motions of astronomical objects, specifically stellar, galactic, and galaxy cluster/supercluster observations. It is also required in order to enable gravity to amplify the small fluctuations in the cosmic microwave background enough to form the large-scale structures that we see in the universe today. For each of the stellar, galactic, and galaxy cluster/supercluster observations the basic principle is that if we measure velocities in some region, then there has to be enough mass there for gravity to stop all the objects flying apart. Dark matter has important consequences for the evolution of the universe and the structure within it. According to general relativity, the universe must conform to one of three possible types: open, flat, or closed. The total amount of mass and energy in the universe determines which of the three possibilities applies to the universe. In the case of an open universe, the total mass and energy density (denoted by the Greek letter U) is less than unity. If the universe is closed, U is greater than unity. For the case where U is exactly equal to one the universe is "flat". This new book details leading-edge research from around the globe.

Star clusters and black holes are moving into the focus of high resolution astrophysics, computationally as well as observationally. For the first time, observations in many regions of the electromagnetic spectrum are converging with theoretical modelling and computer simulations. These cosmological and galaxy formation models reach down to the supermassive black hole level and follow their formation and growth in the centres of galaxies, by gas and star accretion. IAU Symposium 312 brings together experts on high resolution observations as well as theoretical modelling and computational simulations, who present their research on star clusters, black holes and their interrelations, and gravitational wave astrophysics. IAU S312 continues the tradition of IAU symposia on stellar dynamics and related areas, allowing interested graduate students and researchers to access the current state of these fields.

This little wok is designed to instruct the mind as yet unacquainted with the phenomena of eclipses, and to counteract the prejudice which affirms without examination that these phenomena are in no way connected with mundane events. In dealing with this subject, the author shall have occasion to speak of eclipses of the Sun and Moon not only in their physical causative relations, but also in their symbolic and prognostic relations. Contents: natural causes of an eclipse; eclipses of the sun and moon; historical eclipses; calculate an eclipse of the sun and moon; eclipse signs and indications; the decanates; transits over eclipse points; individuals and eclipses.

The most famous guide to the stars is now the most accessible! Generations of amateur astronomers have called it simply Norton's: the most famous star atlas in the world. Now in a beautifully redesigned, two-color landmark 20th edition, this combination star atlas and reference guide has no match in the field.

First published in 1910, coinciding with the first of two appearances by Halley's Comet last century, Norton's owes much of its legendary success to its unique maps, arranged in slices or gores, each covering approximately one-fifth of the sky. Apart from being presented more accessibly than ever before, the text and tables have been revised and updated to account for the new and exciting developments in our observation of the cosmos. The star maps themselves were plotted using advanced computer techniques yielding outstanding accuracy and legibility. Every heavenly object visible to the naked eye is included--stars to magnitude 6, star clusters, and galaxies, as well as other celestial objects. Presented with an authority that has stood for generations, observation hints, technical explanations, and pointers to specialized information sources make this the only essential guide to the night sky.

The updated and revised hardcover 20th edition also has new moon maps, clearer tables, new diagrams and a section on the latest computer driven telescopes--today's perfect home reference for curious minds from beginners to dedicated star gazers!

What are people saying? ... "The unique and time-honored projection used in the Norton's star charts is particularly handy and has always been my favorite." --Professor Owen Gingerich, Harvard-Smithsonian Center for Astrophysics

"Once in a blue moon a book appears to dramatically and forever change its subject; in short, the work becomes an indispensable resource for generations. Norton's Star Atlas is such a work." --Leif J. Robinson, Editor Emeritus, Sky and Telescope

"Ian Ridpath is one of the most dedicated and prolific writers on astronomy. His works all have clarity and authority, and he is ideally suited to infuse new life into a classic." --Martin Rees, Astronomer Royal, University of Cambridge, author of Our Final Hour

SHORTLISTED FOR THE ROYAL SOCIETY SCIENCE BOOK PRIZE 2021 FINALIST FOR THE PEN/E.O. WILSON LITERARY SCIENCE WRITING AWARD AN AMAZON BEST BOOK OF 2020 To be an astronomer is to journey to some of the most inaccessible parts of the globe, braving mountain passes, sub-zero temperatures, and hostile flora and fauna. Not to mention the stress of handling equipment worth millions. It is a life of unique delights and absurdities ... and one that may be drawing to a close. Since Galileo first pointed his telescope at the heavens, astronomy has stood as a fount of human creativity and discovery, but soon it will be the robots gazing at the sky while we are left to sift through the data. In The Last Stargazers, Emily Levesque reveals the hidden world of the professional astronomer. She celebrates an era of ingenuity and curiosity, and asks us to think twice before we cast aside our sense of wonder at the universe.

Physics of Neutron Stars

Astronomers are at a crucial point in our understanding of the Milky Way. Deciphering the assembly history of our galaxy requires detailed mapping of the structure, dynamics, chemical composition, and age distribution of its stellar populations. In the last decade, astrometric, spectroscopic, photometric, and asteroseismic surveys have started to unveil the inner- and outermost regions of the Milky Way. IAU Symposium 334 explores the still open questions and focusses on the concepts emerging from the analysis of these large, new, and complex datasets. This volume presents a summary of these topics, including the current novel data and the challenges they already pose to modeling, before Gaia end-of-mission, PLATO, and large spectroscopic surveys such as WEAVE and 4MOST are about to start. Graduate students and researchers will learn that, in this golden era of galactic archaeology, we are about to rediscover our galaxy.

Part of the reissued Oxford Classic Texts in the Physical Sciences series, this book was first published in 1983, and has swiftly become one of the great modern classics of relativity theory. It represents a personal testament to the work of the author, who spent several years writing and working-out the entire subject matter.

The theory of black holes is the most simple and beautiful consequence of Einstein's relativity theory. At the time of writing there was no physical evidence for the existence of these objects, therefore all that Professor Chandrasekhar used for their construction were modern mathematical concepts of space and time. Since that time a growing body of evidence has pointed to the truth of Professor Chandrasekhar's findings, and the wisdom contained in this book has become fully evident.

The Galactic Centre represents a unique and extreme environment in the Galaxy. It hosts the Milky Way's supermassive black hole, its most concentrated dense gas reservoir and its most extreme star-formation environment. The Galactic Centre is therefore our nearest analogue to both an active galactic nucleus (AGN) and a starburst system. IAU Symposium 322 explores the revolution in our understanding of the Galactic Centre, driven by novel instrumentation including NuSTAR, ALMA, EHT and, in the near future, the Cherenkov Telescope Array (CTA). A number of anomalous, non-thermal signals have recently been discovered emanating from the Inner Galaxy. This volume addresses the question: are these signatures of dark matter or other new physics, or symptoms of the region's unusual astrophysics? Graduate students and researchers at the interface between astrophysics and particle physics have much to learn from studying this unique region.

Written by an active researcher in the field, Galaxy: Mapping the Cosmos tells the rich scientific story of galaxy evolution and observation - discoveries of `spiral nebulae', the nature of galaxies and the current `World Model'. Astronomer James Geach takes us on a tour of what is currently known and unknown, discussing why the ancient science of astronomy continues to fascinate humanity. Appealing to all readers interested in astronomy and cosmology, and featuring 108 superb colour photographs, Galaxy explores the enigma of our cosmic habitat, chronicling how our home in the Universe came to be.

The simplest guide to astronomy and stargazing! Grasping astronomy has never been easier. The awe of the night sky will soon turn into knowledge of the constellations, planets, and astrological phenomena! Bold graphics and easy-to-understand text make this visual guide the perfect introduction to astronomy and stargazing for those who have little time but a big thirst for knowledge. Inside you'll find: - Simple, easy-to-understand graphics that help to explain astronomy, space, and the night sky in a clear, visual way - The latest astronomical information on black holes, gravitational waves, the origin of the Universe, and the planets of the Solar System - User-friendly star-charts that guide you through the sky using brighter stars as "signposts" to locate harder-to-see objects - Essential advice on the practicalities of stargazing - from observing with the naked eye to using telescopes Each pared-back entry covers the essentials more clearly than ever before. The opening chapters provide an introduction to the Universe, a visual tour of the Solar System, and a guide to more distant objects such as stars and galaxies. Along the way, concepts such as the Big Bang, gravity, and space-time are introduced and explained. Later chapters describe how to navigate around the night sky and introduce some must-see constellations, complete with simple star charts. Whether you are a complete beginner, or simply want a jargon-free reference to astronomy and stargazing, this essential guide is packed with everything you need to understand the basics quickly and easily.

Are you an emotional Scorpio who needs to pour out your latest drama to your friends and relatives? Perhaps you're an uptight Capricorn who keeps all your feeling to yourself? Are you a flirtatious Libran, a brave but thoughtless Arian or a careful Cancerian? Whatever your characteristics are, The Magic of Astrology will help explain the unexplainable in your life, give advice on your relationships, careers and much, much more. Since the dawn of humanity, we have always looked up to the stars for guidance, whether we are lost at sea or lost in life. Astrology is an ancient science, with tried and tested advice from various cultures all across the world over thousands of years. Are you anxious in a new relationship? Are you stuck in an unsatisfying job? Has an opportunity arisen, but you find it hard to make a decision? Astrology can show you the way. This book shows you how you can unlock your hidden potential and reveal your true personality. It offers an engaging, in-depth analysis of every zodiac sign, so you can compare with your friends and family, and it also explains how astrology can influence and improve every area of your life. Packed with detailed compatibility charts and advice, this practical guide channels the secret of the starts to help you to live life to the fullest.

White dwarfs are the most numerous members of the stellar graveyard. More than ninety percent of all stars will end their lives as white dwarfs. Research on these objects is fascinating in its own right, requiring developments in atomic data and the study of properties of matter under extreme conditions. However, these studies also have enormous impact on other areas of astrophysics, including: cosmology, the composition of extrasolar planets and fundamental physics. The proceedings of IAU Symposium 357 bring together experts from different branches of science working on white dwarfs, but also astronomers with expertise in a wide range of relevant disciplines. The resulting papers are organized around several key themes: SN Ia progenitors, debris from extrasolar planetary systems, fundamental physics, precision studies of white dwarf structure and stellar physics and Galactic evolution. They provide a framework for guiding the direction of white dwarf research for the next decade.

Written in an informal and engaging style, this volume traces the discoveries that led to our understanding of the size and structure of the Milky Way, and the conclusive evidence for a massive black hole at its center. Robert H. Sanders, an astronomer who witnessed many of these developments, describes how we parted the veil of interstellar dust to probe the strange phenomena within. We now know that the most luminous objects in the Universe - quasars and radio galaxies - are powered by massive black holes at their hearts. But how did black holes emerge from being a mathematical peculiarity, a theoretical consequence of Einstein's theory of gravity, to become part of the modern paradigm that explains active galactic nuclei and galaxy evolution in normal galaxies such as the Milky Way? This story, aimed at non-specialist readers and students and historians of astronomy, will both inform and entertain.

IAU Symposium 291 features a rich harvest of recent scientific discoveries and looks forward to the many exciting avenues for future neutron-star research. The volume starts with general, lively, comprehensive introductions to three main themes that successfully communicate the excitement of current pulsar research. The subsequent reviews and contributions on hot topics cover: ongoing searches for pulsars, both radio and gamma-ray; neutron star formation and properties; binary pulsars; pulsar timing and tests of gravitational theories; magnetars; radio transients; radio, X-ray and gamma-ray pulse properties and emission mechanisms; and future facilities. This range of topics clearly illustrates the diverse nature and wide application of neutron-star research. Through a combination of introductory reviews and practically complete coverage of current results from across the electromagnetic spectrum, IAU S291 is the perfect reference for neutron-star researchers and also provides an excellent read for advanced undergraduate and starting graduate students.

The interstellar medium (or ISM) is the matter that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, dust, and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space. This book presents topical research in the study of interstellar medium, including explosive processes in the interstellar medium as sources of ultrahigh-energy cosmic rays; heteronuclear diatomics in diffuse and translucent clouds; far ultraviolet observations of the Large Magellanic Cloud; MDH simulations of Parker instability undergoing cosmic-ray diffusion; deuterium in the interstellar medium and interaction of planetary nebulae, Eta-Carinae and supernova remnants with the interstellar medium.