Introduction to Close Binary Systems provides a comprehensive survey and guide to the fast-moving field of multiple, specifically binary, stars, with an up to date account of research around ?close?, i.e. interacting pairs. Such interactions allow direct quantification of stellar properties, opening up factual insights into basic building blocks of the Universe. The book provides a much needed update for the seminal Close Binary Systems of Zdenek Kopal. Following a comparable plan, it presents relevant subject matter with an emphasis on building a framework of understanding to serve as a supporting resource for students and researchers.;
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The text starts from a general historical background and progresses into the main theoretical ideas supporting our prima facie interpretation of observations.; The central chapters explore further into these observational methods, arranged according to the classic subdivisions of astrometry, spectroscopy and photometry.; Optimal inversion of observational data into model parametrization is a theme through these chapters.; Significant here is the problem of how non-uniqueness in modelling affects interpretation.; The underlying issues of stellar evolution bearing on observational evidence become paramount in the last four chapters.; The book proceeds step-by-step from directly understandable examples of unevolved pairs to the challenging cases where stars are found in more and more extreme conditions, leading up to the mergers of massive black hole pairs seen in the new field of gravitational wave astronomy. This is a valuable reference for postgraduate and advanced undergraduate students working in mainstream areas of stellar astrophysics, with applications also to exoplanet research which shares some methodological features.; Course designers for stellar astrophysics will find a useful selection of topics within this book.
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