{"product_id":"quasar-absorption-lines-christopher-w-churchill-9781009715218","title":"Quasar Absorption Lines","description":"'Quasar Absorption Lines' is a comprehensive, detailed exposition on the science and analysis of quasar spectra in two volumes, for both aspiring and seasoned astronomers. This Volume 2: 'Astrophysics, Analysis, and Modeling' describes atomic transitions of hydrogenic and multi-electron ions, the theoretical foundation and practical application of the ΛCDM cosmological model, and radiative transfer from cosmological sources. The theory of spectrographs and the mathematical formalism and quantitative analysis of spectral absorption lines and ionization breaks are treated in detail, including column density measurements, line deblending, and Voigt profile fitting. The philosophies, methods, and techniques of large absorption line surveys are presented, including methods for correcting incompleteness and for measuring accurate absorber population statistics. Gas physics, heating\/cooling, and ionization are also covered, followed by detailed methods for undertaking multi-component, multiphase chemical-ionization modeling.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Christopher W. Churchill\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1009715216\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781009715218\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Cambridge University Press\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 12\/18\/2025\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 680\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Hardcover\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 2.80lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.61h x 6.69w x 1.44d","brand":"Christopher W. Churchill","offers":[{"title":"Hardcover","offer_id":48014232289535,"sku":"9781009715218","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_465438f7-d98f-4933-ab62-01c808e3973a.jpg?v=1767747511","url":"https:\/\/www.whiterainbookhouse.com\/products\/quasar-absorption-lines-christopher-w-churchill-9781009715218","provider":"WR Book House","version":"1.0","type":"link"}