(Spring Semester - 2012)
First Meeting : 16 February, 2012.
Room: DTP Seminar room (A-304)
Every Tuesday's and Thursday's at 9:45 AM
Contact - Subha Majumdar Email: subha AT tifr.res.in
Room - A 309 Extension - 2203
Please contact me if you are interested in attending the course.
Aim of the course - To
give an overview of Cosmology as currently 'practised'. Broad
emphasis on theory, and its applications, needed to understand and
interpret current and upcoming observations.
Pre-requisites - This is a first course on Cosmology. No background knowledge of General Theory of Relativity and Quantum Field Theory is needed.
Books - There are many excellent books.
Classic Treatises are
by : Peebles; Weinberg (1972); Zel'dovich &
More modern books are by: Padmanabhan, Peacock; Dodelson; Liddle
& Lyth; Weinberg (2008). Each has its own strengths.
Weinberg's 2008 book on Cosmology is recommended for detailed
Early Universe and Inflationary Physics (more from the particle
physics/ high energy physics standpoint) and Relativistic Perturbation
theory are found in details in books by: Linde; Mukhanov; Kolb
Approx 21 lectures of 1.5 hrs duration. We'll try to cover the following topics, some in greater detail than the others.
There'll two HW assignments, a student seminar and one final exam.
1. Cosmology @ 2012
Our present knowledge of our Universe:
- how big? how old? it's past. it's future.
- what is it made of? the cosmic pie chart etc
2. Homogeneous Universe and its Dynamics
- Friedmann-Lemaitre-Robertson-Walker model
- Dynamics and Expansion - Friedman equations
- Kinematics; Classical observational tests
3. A concordant model of our Universe
- LCDM model
- Intitial conditions: Inflation
4. Timeline of our Universe
- ThermoD in an expanding Universe
- BBN, neutrinos, DM, Phase Transitions
- Brush with observations: Gunn Peterson troughs, Lya systems
5. Inhomogeneous Universe : Linear Regime
- Basics of cosmological perturbation theory
- Generation of perturbations
- Growth of perturbations
- Single fluid,
Multi fluids, Matter Power Spectrum
6. Inhomogeneous Universe: Non-Linear Regime
- Gravitational instability, Jeans theory
- Top hat collapse
- Zel'dovich approximations
- Velocities ; Mass function
7. Three Topics
- The Cosmic Microwave Background
- Galaxy Clustering and BAO
- Dark Energy
SEMINAR TOPICS :
Last modified : 13-Jan-2012