Gravitational waves were predicted 100 years ago by Einstein as part of his general theory of relativity. This volume contains the exciting results presented at IAU Symposium 338, following the announcement of the first results of the observation of the collision of neutron stars by the LIGO and Virgo Advanced detectors, and follow-up observations by many ground-based and space telescopes. These observations provided an incredible context for the talks, posters and discussions at the meeting, fostering new interactions and collaborations between physicists and astronomers in an exciting new era of multimessenger astrophysics. For the first time, space-time messengers (gravitational waves) and electromagnetic ones (visible, infrared and ultraviolet light, x-rays, gamma-rays, radio waves) can be correlated, to increase our understanding of binary systems of compact objects, rotating or exploding stars and other astrophysical phenomena. A new window has opened through which we can view the cosmos.

In the twenty-first century, we take the means to measure time for granted, without contemplating the sophisticated concepts on which our time scales are based. This volume presents the evolution of concepts of time and methods of time keeping up to the present day. It outlines the progression of time based on sundials, water clocks, and the Earth's rotation, to time measurement using pendulum clocks, quartz crystal clocks, and atomic frequency standards. Time scales created as a result of these improvements in technology and the development of general and special relativity are explained. This second edition has been updated throughout to describe twentieth- and twenty-first-century advances and discusses the redefinition of SI units and the future of UTC. A new chapter on time and cosmology has been added. This broad-ranging reference benefits a diverse readership, including historians, scientists, engineers, educators, and it is accessible to general readers.

Astronomy is an observational science, renewed and even revolutionized by new developments in instrumentation. With the resulting growth of multiwavelength investigation as an engine of discovery, it is increasingly important for astronomers to understand the underlying physical principles and operational characteristics for a broad range of instruments. This comprehensive text is ideal for graduate students, active researchers and instrument developers. It is a thorough review of how astronomers obtain their data, covering current approaches to astronomical measurements from radio to gamma rays. The focus is on current technology rather than the history of the field, allowing each topic to be discussed in depth. Areas covered include telescopes, detectors, photometry, spectroscopy, adaptive optics and high-contrast imaging, millimeter-wave and radio receivers, radio and optical/infrared interferometry, and X-ray and gamma-ray astronomy, all at a level that bridges the gap between the basic principles of optics and the subject's abundant specialist literature. Color versions of figures and solutions to selected problems are available online at www.cambridge.org/9780521762298.

An important historical look at the space program’s evolving telecommunications systems

Large Antennas of the Deep Space Network traces the development of the antennas of NASA’s Deep Space Network (DSN) from the network’s inception in 1958 to the present. It details the evolution of the large parabolic dish antennas, from the initial 26-m operation at L-band (960 MHz) through the current Ka-band (32 GHz) systems. Primarily used for telecommunications, these antennas also support radar and radio astronomy observations in the exploration of the solar system and the universe. In addition, the author also offers thorough treatment of the analytical and measurement techniques used in design and performance assessment.

Large Antennas of the Deep Space Network represents a vital addition to the literature in that it includes NASA-funded research that significantly impacts on deep space telecommunications. Part of the prestigious JPL Deep Space Communications and Navigation Series, it captures fundamental principles and practices developed during decades of deep space exploration, providing information that will enable antenna professionals to replicate radio frequencies and optics designs.

Designed as an introduction for students in the field as well as a reference for advanced practitioners, the text assumes a basic familiarity with engineering and mathematical concepts and technical terms.

The Deep Space Communications and Navigation Series is authored by scientists and engineers with extensive experience in astronautics, communications, and related fields. It lays the foundation for innovation in the areas of deep space navigation and communications by disseminating state-of-the-art knowledge in key technologies.

Over the past decade, modelling the panchromatic emission of galaxies has become one of the key tools in measuring their properties. As new and next-generation facilities progressively herald a new era in observational astronomy, we face new and specific challenges: LSST (recently named the Vera C. Rubin Observatory) and SKA will provide us with an avalanche of data; the advent of e-ROSITA and the preparation for Athena make it ever more pressing to include X-ray emission into the standard UV to radio panchromatic models; JWST will observe the first galaxies with extreme stellar populations; and, in the meantime, ALMA is already starting to provide us with remarkable dust and metal observations at high redshift. The proceedings of IAU Symposium 341 offer a broad overview of the state of the field from theoreticians, modellers, and observers to present and discuss the current frontier in the panchromatic modelling of galaxies.

The dazzling vistas that the Hubble Space Telescope has recorded since its launch in 1990 are presented in this book, along with explanations of what exactly Hubble has seen during it's years in orbit. This Pocket Space Guide, #7 in the series, tells the complete Hubble story--from the program's shaky start to the extraordinary success that followed, inspiring bigger and better successors in the years to follow. Line drawings of its hardware offer a supplementary understanding of Hubble's technological development.

Loran and GPS notwithstanding, there will always be a place for the sextant aboard any blue-water boat, if for no other reason than the thrill and mystery of finding ones position on earth by gazing at the heavens. Here is the indispensable reference that should accompany the instrument aboard. Cmdr. Bruce Bauer, a professional navigator and master mariner with the U.S. Merchant Marine, has distilled years of hands-on experience into an eminently readable guide to buying, adjusting, using, and repairing sextants.

The Sextant Handbook is dedicated to the premise that electronic navigation devices, while too convenient to disregard, are too vulnerable to rely on exclusively. The book is designed to make beginner and expert alike conversant with this most beautiful and functional of the navigators tools. Topics include:

• Assembly and Disassembly
  
• Vital Adjustments
  
• Avoiding Problems
  
• Rough Weather Sightings
  
• Oiling and Cleaning
  
• Immersion Baths
  
• Emergency Silvering
  
• Finding and Buying Used Sextants
  
• And Much More
  

Youll also find a list of distributors, manufacturers, and dealers worldwide, a discussion of future trends, and numerous helpful hints, including sighting with eyeglasses and using a Rude starfinder. All in a thoroughly revised edition of a book acclaimed by navigation professionals.

Spectroscopy is the principal tool used in astronomy to investigate the Universe beyond Earth's atmosphere. Through the analysis of electromagnetic radiation, spectrographs enable observers to assess the chemical composition, kinematics, and local physical properties of distant stars, nebulae, and galaxies. Thoroughly illustrated and clearly written, this handbook offers a practical and comprehensive guide to the different spectroscopic methods used in all branches of astronomy, at all wavelengths from radio to gamma-ray, and from ground and space-borne instruments. After a historical overview of the field, the central chapters navigate the various types of hardware used in spectroscopy. In-depth descriptions of modern techniques and their benefits and drawbacks help you choose the most promising observation strategy. The handbook finishes by assessing new technologies and future prospects for deep-sky observation. This text is an ideal reference for today's graduate students and active researchers, as well as those designing or operating spectroscopic instruments.

A multitude of measurement units exist within astronomy, some of which are unique to the subject, causing discrepancies that are particularly apparent when astronomers collaborate with researchers from other disciplines in science and engineering. The International System of Units (SI) is based on seven fundamental units from which other units may be derived, but many astronomers are reluctant to drop their old and familiar systems. This handbook demonstrates the ease with which transformations from old units to SI units may be made. Using worked examples, the author argues that astronomers would benefit greatly if the reporting of astronomical research and the sharing of data were standardized to SI units. Each chapter reviews a different SI base unit, clarifying the connection between these units and those currently favoured by astronomers. This is an essential reference for all researchers in astronomy and astrophysics, and will also appeal to advanced students.

See the full beauty of our night sky revealed as never before in over 200 photographs from around the world in this stunning and giftable title. Bringing together the images of over 40 photographers across 25 countries, be astounded by the lights of the night sky in some of the darkest places on earth; discover the beauty of galaxies, planets and stars; view great celestial events; and see some of the world's most important landmarks against the backdrop of an incredible nightscape. Babak Tafreshi, founder of the international organisation The World at Night, has curated the images in this collection - many of them previously unseen - to reveal the true splendour of the sky at night. A specialist guide to night-sky photography will help you capture your own gorgeous images of the heavens. Commentary on the science, astronomy and photography accompany stunning images organised by theme: Symbols of all nations and religions embraced by one sky of endless beauties UNESCO World Heritage Sites at night The Universe revealed through constellations, sky motions, atmospheric phenomenon, Aurora and other wonders Images highlighting the beauty of dark skies away from light-polluted urban areas Celestial events, from great comets to spectacular eclipses Astro-tourism destinations, like ancient astronomical monuments and modern observatories

This 2002 introduction to the use of radar for remote sensing of natural surfaces provides the reader with a thorough grounding in practical applications, focusing particularly on terrestrial studies that may be extended to other planets. An historical overview of the subject is followed by an introduction to the nomenclature and methodology pertaining to radar data collection, image interpretation and surface roughness analysis. The author then presents a summary (illustrated with black and white examples from the natural environment) of theoretical explanations for the backscatter properties of continuous rough surfaces, collections of discrete objects, and layered terrain. Case studies of radar surveys of the Moon, Mercury, Venus and Mars complete the book. The level is appropriate for students and professionals across a broad range of scientific disciplines including Earth and planetary sciences, electrical engineering, and remote sensing. Particular emphasis is given to practical geological and geophysical studies of the terrestrial planets.

Essential Radio Astronomy is the only textbook on the subject specifically designed for a one-semester introductory course for advanced undergraduates or graduate students in astronomy and astrophysics. It starts from first principles in order to fill gaps in students' backgrounds, make teaching easier for professors who are not expert radio astronomers, and provide a useful reference to the essential equations used by practitioners. This unique textbook reflects the fact that students of multiwavelength astronomy typically can afford to spend only one semester studying the observational techniques particular to each wavelength band. Essential Radio Astronomy presents only the most crucial concepts--succinctly and accessibly. It covers the general principles behind radio telescopes, receivers, and digital backends without getting bogged down in engineering details. Emphasizing the physical processes in radio sources, the book's approach is shaped by the view that radio astrophysics owes more to thermodynamics than electromagnetism. Proven in the classroom and generously illustrated throughout, Essential Radio Astronomy is an invaluable resource for students and researchers alike. * The only textbook specifically designed for a one-semester course in radio astronomy* Starts from first principles* Makes teaching easier for astronomy professors who are not expert radio astronomers* Emphasizes the physical processes in radio sources* Covers the principles behind radio telescopes and receivers* Provides the essential equations and fundamental constants used by practitioners* Supplementary website includes lecture notes, problem sets, exams, and links to interactive demonstrations* An online illustration package is available to professors

Written by an experienced and well-known lunar observer, this is a hands-on primer for the aspiring observer of the Moon. Whether you are a novice or are already experienced in practical astronomy you will find plenty in this book to help you raise your game to the next level and beyond. In this thoroughly updated Second Edition, the author provides extensive practical advice and sophisticated background knowledge of the Moon and of lunar observation. It incorporates the latest developments in lunar imaging techniques, including digital photography, CCD imaging, and webcam observing, and essential advice on collimating all common types of telescope. Learn what scientists have discovered about our Moon, and what mysteries remain still to be solved. Find out how you can take part in the efforts to solve these mysteries, as well as enjoying the Moon's spectacular magnificence for yourself!

Completely updated, this second edition gives a broad review of astronomical photometry to provide an understanding of astrophysics from a data-based perspective. It explains the underlying principles of the instruments used, and the applications and inferences derived from measurements. Each chapter has been fully revised to account for the latest developments, including the use of CCDs. Highly illustrated, this book provides an overview and historical background of the subject before reviewing the main themes within astronomical photometry. The central chapters focus on the practical design of the instruments and methodology used. The book concludes by discussing specialised topics in stellar astronomy, concentrating on the information derived from the analysis of the light curves of variable stars and close binary systems. It includes numerous bibliographic notes and a glossary of terms. It is ideal for graduate students, academic researchers and advanced amateurs interested in practical and observational astronomy.

The long-awaited second edition of this well-received textbook gives a thorough introduction to observational astronomy. Starting with the basics of positional astronomy and systems of time, it continues with charts and catalogs covering both historically important publications and modern electronic databases. The book builds on a fundamental discussion of the basics of light and the effects of the atmosphere on astronomical observations. Chapters include discussions of optical telescopes, detectors, photometry, variable stars, astrometry, spectroscopy, and solar observations. This edition contains new discussions of measurements with CCDs and appendices give basic statistical methods, useful astronomical software and websites, and sources of accurate time-calibration signals. Observational Astronomy is the perfect textbook for upper level undergraduate or beginning graduate courses on astronomy. Examples based on real astronomical data are placed throughout the text. Each of the well-illustrated chapters is supported by a set of graduated problems and suggestions for further reading.

This introduction to the night sky is for amateur astronomers who desire a deeper understanding of the principles and observations of naked-eye astronomy. It covers topics such as terrestrial and astronomical coordinate systems, stars and constellations, the relative motions of the sky, sun, moon and earth leading to an understanding of the seasons, phases of the moon, and eclipses. Topics are discussed and compared for observers located in both the northern and southern hemispheres. Written in a conversational style, only addition and subtraction are needed to understand the basic principles and a more advanced mathematical treatment is available in the appendices. Each chapter contains a set of review questions and simple exercises to reinforce the reader's understanding of the material. The last chapter is a set of self-contained observation projects to get readers started with making observations about the concepts they have learned. William Charles Millar, currently Professor of Astronomy at Grand Rapids Community College in Michigan, has been teaching the subject for almost twenty years and is very involved with local amateur astronomy groups. Millar also belongs to The Planetary Society and the Astronomical Society of the Pacific and has traveled to Europe and South America to observe solar eclipses. Millar holds a Masters degree in Physics from Western Michigan University.

Charge-Coupled Devices (CCDs) are the state-of-the-art detector in many fields of observational science. Updated to include all of the latest developments in CCDs, this second edition of the Handbook of CCD Astronomy is a concise and accessible reference on all practical aspects of using CCDs. Starting with their electronic workings, it discusses their basic characteristics and then gives methods and examples of how to determine these values. While the book focuses on the use of CCDs in professional observational astronomy, advanced amateur astronomers, and researchers in physics, chemistry, medical imaging, and remote sensing will also find it very valuable. Tables of useful and hard-to-find data, key practical equations, and new exercises round off the book and ensure that it provides an ideal introduction to the practical use of CCDs for graduate students, and a handy reference for more experienced users.

Since its foundation in 1904, the Mount Wilson Observatory has been at the centre of the development of astrophysics. Perched atop a mountain wilderness, two mammoth solar tower telescopes and the 60- and 100-inch behemoth night-time reflectors were all the largest in the world. Research has centred around two main themes - the evolution of stars and the development of the universe. This first volume in a series of five histories of the Carnegie Institution describes the people and events, the challenges and successes that the Observatory has witnessed. It includes biographical sketches of forty of the most famous Mount Wilson pioneer astronomers working during the first half of the twentieth century. Contemporary photographs illustrate the development and use of some of the innovative instruments that filled the observatory during this time. This story brings together the elements that formed modern theories of stellar evolution and cosmology.

Three experts in the field of thin-film optics present a detailed and self-contained theoretical study of planar multilayers and how they can be effectively exploited in both traditional and modern applications. Starting with a discussion of the relevant electromagnetic optics, the fundamental optical properties of multilayers are introduced using an electromagnetic approach based on a direct solving of Maxwell's equations by Fourier transforms. This powerful approach is illustrated through the comprehensive description of two of the most important phenomena in multilayers, i.e. giant field enhancement in dielectric stacks and light scattering from thin-film optical filters. The same approach is extended to the description of the operation of planar microcavities and the balance of energy between radiated and trapped light. This book will be valuable to researchers, engineers and graduate students with interests in nanophotonics, optical telecommunications, observational astronomy and gravitational wave detection.

Laboratory astrophysics is the Rosetta Stone that enables astronomers to understand and interpret the distant cosmos. It provides the tools to interpret and guide astronomical observations and delivers the numbers needed to quantitatively model the processes taking place in space, providing a bridge between observers and modelers. IAU Symposium 350 was organized by the International Astronomical Union's Laboratory Astrophysics Commission (B5), and was the first topical symposium on laboratory astrophysics sponsored by the IAU. Active researchers in observational astronomy, space missions, experimental and theoretical laboratory astrophysics, and astrochemistry discuss the topics and challenges facing astronomy today. Five major topics are covered, spanning from star- and planet-formation through stellar populations to extragalactic chemistry and dark matter. Within each topic, the main themes of laboratory studies, astronomical observations, and theoretical modeling are explored, demonstrating the breadth and the plurality of disciplines engaged in the growing field of laboratory astrophysics.

This introduction to basic practical tools, methods and phenomena in quantitative astronomy covers topics across a wide range of areas, from radio to gamma-ray wavelengths. Clear presentations of the topics are accompanied by diagrams and problem sets. Written for undergraduates and graduate students, the book will introduce them to the practice and study of quantitative and analytical astronomy and astrophysics.

This complete reference provides a wealth of practical information covering all aspects of amateur astronomy. Organized thematically for ease of use, it covers observing techniques, telescopes and observatories, internet resources, and the objects that can be studied. Those new to the field will find tips, techniques and plans on how to begin their quest, and more advanced observers will find useful advice on how to get more from their hobby. Michael E. Bakich obtained a bachelors degree in Astronomy from Ohio State University and a masters degree in Planetarium Education from Michigan State University. He has written numerous original planetarium programs, and gives lectures on astronomy to groups of all ages. He is also a tour guide to eclipses and astro-archaeological sites. Bakich has written two previous books: The Cambridge Planetary Handbook (2000) and The Cambridge Guide to the Constellations (1995), both published by Cambridge University Press.

If, as Immanuel Kant once said, we are guided by the starry sky above and the moral law within, then, thanks to David Levy, we can now conceptualize Kant's adage at least half-way. David Levy's Guide to the Night Sky is designed to satisfy observers who have just become interested in the sky and want to navigate their way around it. By stirring the imagination and putting observation in a framework of personal adventure, Levy explains how to discover the Moon, planets, comets, meteors, and distant galaxies through a small telescope. Fully updated, the new edition includes:

Knowledge Discovery in Big Data from Astronomy and Earth Observation: Astrogeoinformatics bridges the gap between astronomy and geoscience in the context of applications, techniques and key principles of big data. Machine learning and parallel computing are increasingly becoming cross-disciplinary as the phenomena of Big Data is becoming common place. This book provides insight into the common workflows and data science tools used for big data in astronomy and geoscience. After establishing similarity in data gathering, pre-processing and handling, the data science aspects are illustrated in the context of both fields. Software, hardware and algorithms of big data are addressed. Finally, the book offers insight into the emerging science which combines data and expertise from both fields in studying the effect of cosmos on the earth and its inhabitants.

Here is an informative, up-to-date and well-illustrated guide to planetary observations for amateurs. After chapters on the solar system and the celestial sphere, the text explains how to choose, test and use a telescope with various accessories and how to make observations and record results. For each planet and the asteroids, Price gives details of observational techniques, together with suggestions for how to make contributions of sound astronomical value. From a general description and detailed observational history of each planet, readers learn how to anticipate what they should see and assess their own observations. New to this edition is a chapter on planetary photography that includes the revolutionary use of videography, charge coupled devices and video-assisted drawing. Another new feature is a section on the Kuiper Belt and Oort Cloud. Other chapters on making maps and planispheres and on photoelectric photometry round out the book's up-to-date treatment, making this indispensable reading for both casual and serious observer alike.