Explore the fundamental principles of astronomical spectroscopy with this comprehensive introduction to the atomic and molecular physics that underpins it. Authored by Jonathan Tennyson from University College London, this third edition provides an in-depth look at the subject, making complex concepts accessible to students and researchers alike. Key features include: * Detailed explanations of atomic and molecular physics relevant to spectroscopy. * Coverage of observational techniques and data analysis. * Updated content reflecting the latest advancements in the field. This book is an essential resource for anyone studying or working in astrophysics and related fields. It bridges the gap between theoretical physics and observational astronomy, offering a solid foundation for understanding celestial objects through their spectral signatures. Astronomical Spectroscopy: An Introduction To The Atomic And Molecular Physics Of Astronomical Spectroscopy (Third Edition), Jonathan (Univ College London, Uk) Tennyson