Electromagnetic Radiation in Astrophysics (ERA | SPA7006U)

This course has its own web page.

Year: 4 | Semester: B | Level: 7 | Credits: 15

Course organiser: Dr Guillem Anglada Escude | Course deputy: Prof David Burgess

Synopsis:

This module is an introduction to understanding the origin, propagation, detection and interpretation of electromagnetic (EM) radiation from astronomical objects. In this module students will learn: how to describe EM radiation and its propagation through a medium to an observer; the main processes responsible for line and continuum emission and how they depend on the nature and state the emitting material; the effects of the earth's atmosphere and the operation of the detection process at various wavelengths. The material will be illustrated by examples from optical, infrared and radio portions of the EM spectrum.

Aims:

Provide an introduction to the various mechanisms applicable to the creation, propagation and detection of radiation from astronomical objects. Provide an understanding of how EM radiation is generated in astrophysical environments, and how it propagates to the "observer" on earth, or satellite. Provide an ability to understand astronomical observations and how they can be used to infer the physical and chemical state, and motions of astronomical objects. Provide an understanding of how spatial, spectral and temporal characteristics of the detection process produce limitations in the interpretation of the properties of astrophysical objects. Provide an understanding of the uncertainties involved in the interpretation of properties of astrophysical objects, including limitations imposed by absorption and noise, both instrumental and celestial, and by other factors. Enable students to be capable of solving intermediate-level problems in astronomical spectra, using analytical techniques encountered or introduced in the course.