Guildford Astronomical Society

Dr Colin McGill

Dr Colin McGill - Credit: Colin McGillDr Colin McGill
Credit: Colin McGill

Dr. Colin McGill is a member of GAS. Colin currently works as a project manager for BP - but before that he was a professional astronomer. His Doctoral research at Oxford was on the large scale structure of the universe. He also completed two Post-Doctoral Research roles, one at the prestigious Canadian Institute for Theoretical Astrophysics in Toronto in cosmology, and one back at Oxford on galactic dynamics. Colin is also a keen imager. He has a remotely operated telescope in Spain and is also training people to use the GAS imaging telescope in Holmbury St. Mary.
DateTalk at GAS meeting
6 Dec 2018Cosmology Pt 1.

Cosmology is the study of the universe as a whole. In these two lectures, Colin will show the key evidence and explain sufficient theory to allow you to understand why we think the universe is as we believe.
The lectures will approximately follow the historical evolution of cosmology over the last 100 years.

The first lecture will cover conventional cosmology:
• The cosmic distance ladder, Hubble’s Law and the age of the universe.
• Symmetries: Isotropy, the Cosmological Principle homogeneity.
•The thermal history of the universe.
• Predictions of the big bang theory: nucleosynthesis and the cosmic microwave background.
•Problems with the big bang theory.

3 Jan 2019Cosmology Pt 2

The second lecture will focus on inflationary cosmology and the insights from the cosmic microwave background:
•Negative pressure and inflation
• Inflation, perturbations, oscillations and cosmological structure formation.
•Supernovae Type 1A and evidence for dark energy
• The future: gravitational waves, the polarisation of the CMB and dark matter.