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This book focuses on the formulation of mathematical models for the light curves of eclipsing binary stars, and on the algorithms for generating such models. Since information gained from binary systems provides much of what we know of the masses, luminosities, and radii of stars, such models are acquiring increasing importance in studies of stellar structure and evolution. As in other areas of science, the computer revolution has given many astronomers tools that previously only specialists could use; anyone with access to a set of data can now expect to be able to model it. This book will provide astronomers, both amateur and professional, with a guide for - specifying an astrophysical model for a set of observations - selecting an algorithm to determine the parameters of the model - estimating the errors of the parameters It is written for readers with knowledge of basic calculus and linear algebra; appendices cover mathematical details on such matters as optimization, coordinate systems, and specific models. While emphasizing the physical and mathematical framework, the discussion remains close to the problems if actual implementation. It begins with an overview of the problem and a discussion of the observational data that form the basis of any model. The treatment then turns to the direct problem (computing the light curve and other observables from the a given set of parameters) and then to the indirect problem (determining a best-fit set of parameters from the data). The book concludes with chapters on specific models and approaches and the authors' views on the structure of future light- curve programs.

Eclipsing binaries --- Etoiles doubles photométriques --- Light curves --- Courbes de lumière --- Light curves. --- Etoiles doubles photométriques --- Courbes de lumière --- Observations, Astronomical. --- Astronomy—Observations. --- Astrophysics. --- Astronomy, Observations and Techniques. --- Astrophysics and Astroparticles. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Astronomical observations --- Observations, Astronomical

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Astrophysics --- Measuring methods in physics --- Chemical laboratory practice --- Computer. Automation --- beeldverwerking --- procescontrole --- astrofysica --- laboratoriuminstrumenten --- meetkundige instrumenten --- micro-elektronica --- elektrische meettechniek --- signaalverwerking

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Exploring Ancient Skies brings together the methods of archaeology and the insights of modern astronomy to explore the science of astronomy as it was practiced in various cultures prior to the invention of the telescope. The book reviews an enormous and growing body of literature on the cultures of the ancient Mediterranean, the Far East, and the New World (particularly Mesoamerica), putting the ancient astronomical materials into their archaeological and cultural contexts. The authors begin with an overview of the field and proceed to essential aspects of naked-eye astronomy, followed by an examination of specific cultures. The book concludes by taking into account the purposes of ancient astronomy: astrology, navigation, calendar regulation, and (not least) the understanding of our place and role in the universe. Skies are recreated to display critical events as they would have appeared to ancient observers—events such as the supernova of 1054 A.D., the "lion horoscope," and the Star of Bethlehem. Exploring Ancient Skies provides a comprehensive overview of the relationships between astronomy and other areas of human investigation. It will be useful as a reference for scholars and as a text for students in both astronomy and archaeology, and will be of compelling interest to readers who seek a broad understanding of our collective intellectual history.

Archaeoastronomy. --- Astronomy. --- Astronomy, Ancient. --- Physics. --- Astronomy, Ancient --- Archaeoastronomy --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astrophysics --- Astronomy - General --- Ethnoastronomy. --- Cultural astronomy --- Folk astronomy --- Indigenous peoples --- Native astronomy --- Ancient astronomy --- Astronomy --- Astrophysics. --- Cosmology. --- Observations, Astronomical. --- Astronomy, Astrophysics and Cosmology. --- Astronomy, Observations and Techniques. --- Observations. --- Ethnology --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical --- Astronomical physics --- Cosmic physics --- Physics

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Solar System Astrophysics: A Text for the Science of Planetary Systems covers the field of solar system astrophysics beginning with basic tools of spherical astronomy, coordinate frames, and celestial mechanics. Historical introductions precede the development and discussion in most chapters. After a basic treatment of the two- and restricted three-body system motions in Background Science and the Inner Solar System, perturbations are discussed, followed by the Earth's gravitational potential field and its effect on satellite orbits. This is followed by analysis of the Earth-Moon system and the interior planets. In Planetary Atmospheres and the Outer Solar System, the atmospheres chapters include detailed discussions of circulation, applicable also to the subsequent discussion of the gas giants. The giant planets are discussed together, and the thermal excesses of three of them are highlighted. This is followed by chapters on moons and rings, mainly in the context of dynamical stability, comets and meteors, meteorites and asteroids, and concludes with an extensive discussion of extrasolar planets. The contents of Solar System Astrophysics: A Text for the Science of Planetary Systems have been field-tested by students for many years. Eugene F. Milone and William J.F. Wilson have written a unique book that presents an up-to-date overview on all essential topics based on extensive experience in the classroom.

Physics. --- Planetology. --- Astronomy. --- Astrophysics. --- Cosmology. --- Astrophysics and Astroparticles. --- Astronomy, Astrophysics and Cosmology. --- Planetary sciences --- Planetology --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Planetary science.

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Cosmology --- Solar system --- Astrophysics --- zonnestelsel --- astrofysica --- planeten --- kosmologie