Bøger af Judith Ann (Queen's University Irwin

This is a balanced textbook presenting the theory and observations of stars and their evolution--a cornerstone of Astrophysics.Decoding the Stars is a companion volume to Decoding the Cosmos from astrophysics teacher and researcher, Professor Judith Irwin. The text presents an accessible, student-friendly guide to the key theories and principles of stars, emphasizing the close connection between observation and theory.To aid in reader comprehension, the text includes further online resources and problems at the end of each chapter. Many examples throughout the text illustrate the important physics in a given process without resorting to complex numerical modelling. However, some problems introduce numerical modelling results using appropriate online resources.Sample topics covered in Decoding the Stars include:* The Sun, gaseous and radiative processes* Stellar interiors, energy transport mechanisms, stellar cores and nuclear energy generation, the global energy budget, timescales, and stability* Observational constraints, variable stars, and star formation from molecular clouds to the ZAMS* Evolutionary tracks on the HR diagram for stars of different masses, and how stars end their lives* Stellar remnants - white dwarfs, neutron stars and pulsars, and black holesDecoding the Stars is a highly useful textbook resource for second- to fourth-year undergraduate students pursuing an Astrophysics program, along with Physics undergraduates who have opted to take stellar structure and evolution as part of their course. It will also be useful for new graduate students who want a solid grounding in stellar astrophysics.

ASTROPHYSICSThe new edition of the popular textbook for undergraduate astronomers, covers the "how" of astrophysicsAstrophysics: Decoding the Cosmos, Second Edition, describes how information about the physical nature of stars and other celestial bodies is obtained and analyzed to gain a better understanding of the universe. This acclaimed introductory textbook makes the complex principles and theories underlying astrophysics accessible to students with basic knowledge of first-year calculus-based physics and introductory astronomy. Reader-friendly chapters explore physical processes using relevant examples and clear explanations of how radiation and particles are analyzed. Such analysis leads to the density, temperature, mass, and energy of astronomical objects.In the time since the first publication of Astrophysics, the power of telescopes has increased considerably. Reflecting advancements in the field, this new edition includes carefully reviewed and updated material throughout, including recent GAIA satellite results, new information from subatomic particles, neutrinos, and cosmic rays, and brand-new case studies on Gamma-ray bursters, soft repeaters, fast radio bursts, exoplanets, and signals from exoplanetary atmospheres. Retaining its focus on electromagnetic radiation, the second edition now covers more of the ways that information about the universe is acquired, such as particles, gravitational radiation, and meteoritics. This textbook:* Describes complex processes in a clear and accessible manner* Provides relevant background information on the physics and examples of the theory in practice to place the subject into context* Includes new figures, case studies, examples, further readings, end-of-chapter problems of varying difficulty levels, and open-ended "Just for Fun" problems* Features a companion website containing information required to solve the designated web-based problems in the text and a range supplementary learning materialAstrophysics: Decoding the Cosmos, Second Edition, is the ideal intermediate textbook for second- and third-year undergraduate students in Astrophysics courses, as well as a useful resource for advanced undergraduate and graduate students looking to refresh their knowledge in basic concepts.