Astronomical Spectrographs and their History (eBook)

Award-winning original fiction for learners of English. At seven levels, from Starter to Advanced, this impressive selection of carefully graded readers offers exciting reading for every student's capabilities. Detective Inspector Helen Shepherd is called to investigate the murder of a young woman on a beach on the south coast of England. The young woman was one of a group of workers from a music company who are staying at a nearby hotel. Inspector Shepherd and her new sergeant Webb question the other workers to find out who had a motive for murder. More than one has, so which one is the murderer and how did they do it? Paperback-only version. Also available with Audio CD including complete text recordings from the book.

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Astronomical spectrographs analyse light emitted by the Sun, stars, galaxies and other objects in the Universe, and have been used in astronomy since the early nineteenth century. This book provides a comprehensive account of spectrographs from an historical perspective, from their theory and development over the last two hundred years, to the recent advances of the early twenty-first century. The author combines the theoretical principles behind astronomical spectrograph design with their historical development. Spectrographs of all types are considered, with prism, grating or grism dispersing elements. Included are Cassegrain, coudé, prime focus, échelle, fibre-fed, ultraviolet, nebular, objective prism, multi-object instruments and those which are ground-based, on rockets and balloons or in space. The book contains several tables listing the most significant instruments, around 900 references, and over 150 images, making it an indispensable reference for professional astronomers, graduate students, advanced amateur astronomers, and historians of science.