Physical Processes in Astrophysics

Description

This course relates observable quantities to the physical properties of astronomical sources thereby deciphering the varied nature of the cosmos. Basic physical processes in astrophysics are discussed and applied to diverse systems including planets, stars, the interstellar medium and distant galaxies. Topics include radiative transfer and the perturbation of the signal by instruments, the atmosphere, and the interstellar medium. The main astrophysical emission processes, both continuum and line, are also presented. An observing project will be carried out during the term. Learning Hours: 120 (36 Lecture, 84 Private Study) Requirements: Prerequisite ( PHYS 216 and PHYS 242 ) or permission of the Department. Course Learning Outcomes: - Calculate the various extraneous effects that degrade astronomical information (the light from celestial sources) as the signal passes through the interstellar medium, the Earth's atmosphere, and the detector. - Design and carry out a straightforward observing project, and analyze data from a real astronomical telescope to develop an understanding of some of the practical limitations in such scientific investigations. - Distinguish between the various wavelength, energy and frequency domains at which astronomers make their observations, and be able to explain the importance of working in these different spectral domains for a full understanding of the physics of the sources. - Explain the fundamental interactions between light and atoms/molecules/dust particles that determine the radiative output of astronomical sources. - Invert received astronomical signals to derive astrophysical conclusion about the physical nature of the source. Assessment/Exam Context: Course assessment and examinations vary by course; Queen's notes that eligible exchange students whose first language is not English may receive extra final-exam time. Exchange Registration Note: Arts and Science courses are open to exchange students subject to prerequisites and space. Most courses should be in Arts and Science; other faculties may be limited. Education, Medicine, and Nursing are not open to incoming exchange enrolment.