Aims
After studying this course students should be able to:
• identify the key steps that lead to the recognition of the expanding Universe.
• relate the Cosmological principle to Hubble's Law.
• understand the physical implications of the cosmological expansion.
• understand and use the Friedmann equations and Fluid equation.
• describe the physics of, and observational evidence for, the Big Bang model.
• explain why Einstein introduced the Cosmological constant and describe
the current evidence for a non-zero value for this constant.
• discuss the physics responsible for the observed cosmic microwave background radiation.
• understand the physics of the early universe and of Big Bang Nucleosynthesis
• understand the motivations and the observational evidence for Inflation.
• explain the main properties of the so called “ΛCDM” model
• critically evaluate technical papers on cosmology
PART 1: COSMOLOGY
• Brief History of Cosmology
• Observational overview
• A Newtonian Cosmology?
• Elements of General Relativity (non examinable in the final examination paper)
• The geometry of the Universe
• Simple cosmological models
• The cosmological constant
• The age of the universe
• Observational parameters
PART 2: THE EARLY UNIVERSE
• The density of the universe and dark matter
• The cosmic microwave background
• The early Universe
• Nucleosynthesis
• The inflationary universe
• The ΛCDM model
Assessment methods
There will be 11 problem sheets handed out on weekly basis. Although these do not count towards the final mark, they should provide useful feedback to students since detailed model answers will be posted the subsequent week. Some of the problems will be discussed in class.
In addition, in weeks 6 and 10, two review problem sheets will be posted and marked. Each will contribute 5% to the final module mark (10% in total) and they will cover Part I (Cosmology) and Part II (the Early Universe) respectively.
Method | Hours | Percentage contribution |
Review problem sheets (2) | - | 10% |
Exam | 2 hours | 90% |
Referral Method: By examination