Lecture material


Date Topics
Lecture 1 Th, Aug 30 Logistics, Olber's paradox, cosmological principle.
Syllabus , Lecture
Lecture 2 Tu, Sept 4 Hubble's Law, particles in the Universe, blackbody radiation.
Lecture , Homework 1
Lecture 3 Th, Sept 6 The cosmic microwave backgound, scale factor - temperature relation,Equivalence principle, mertics of 2D spaces. Lecture
Lecture 4 Tu, Sept 11 NOTE: QUIZ #1 this coming Tuesday. Today: curvature, the Robertson Walker metric, proper distance. Lecture , Homework 1 solutions
Lecture 5 Th, Sept 13 Friedmann's equation, Critical density, density parameter. Lecture
Lecture 6 Tu, Sept 18 First Quiz . Fluid and acceleration equations, equation of state. Lecture
Lecture 7 Th, Sept 20 Introducing the cosmological constant. The evolution of the energy density of matter and radiation as the scale factor increases. Lecture
Lecture 8 Tu, Sept 25 Solving the Friedmann equation for simple Universes. First Quiz Solutions. Lecture.
Lecture 9 Th, Sept 27 Mater and Radiation dominated Universes. Cosmological constant dominated Universe. Lecture. Homework 2 solutions. Problems for self-study. Good luck with Tuesday's mid-term.
First midterm exam Tu, Oct 2 Mid term and solutions
Lecture 10 Th, Oct 4 Multiple component Universes. Matter+Curvature. Lecture .
Lecture 11 Tu, Oct 9 Multiple component Universes II. Matter+Lambda. Matter+ Curvature+ Lambda. Lecture
Lecture 12 Th, Oct 11 Multiple component Universes III. Matter+ Curvature+ Lambda, Radiation+ Matter, the Benchmark model. NOTE: Quiz on chapter 6 next this coming Tuesday. Lecture . Homework 3 solutions .
Lecture 13 Tu, Oct 16 Quiz 2 . The deceleration parameter. Lecture .
Lecture 14 Th, Oct 18 Luminosity and angular size distance. Standard candles and standard yardsticks. Lecture .
Lecture 15 Tu, Oct 23 Parallax, Cepheids, Supernovae Ia and their cosmologigal use as standard candles. Lecture . Quiz 2 solutions .
Lecture 16 Th, Oct 25 Supernovae results. Dark matter in galaxies. Lecture . Homework 4 solutions . Material for the upcoming quiz on Tuesday: All of chapter 7 and the Physics Today article.
Lecture 17 Tu, Oct 30 Quiz 3 . The Virial theorem. Lecture
Lecture 18 Th, Nov 1 Application of the Virial theorem to the Coma Cluster. X-ray measurements of cluster masses. Gravitational lensing and microlensing. Lecture. Homework 5
Lecture 19 Tu, Nov 6 Recombination, decoupling, surface of last scattering. Lecture.
Lecture 20 Th, Nov 8 The power spectrum of the temperature fluctuations of the CMB Lecture. Problems for self study
Second midterm exam Tu, Nov 13 Midterm and answers.
Lecture 21 Th, Nov 15 Big Bang Nucleosynthesis. Neutron to proton ratio, neutron freezeout. Lecture. Homework 6.
Lecture 22 Tu, Nov 20 Deuterium, Helium and the rest of BBN. Lecture. See Homework asignment in the lecture material.
Thanksgiving break Th, Nov 22
Lecture 23 Tu, Nov 27 Matter-Antimatter assymetry. The flatness and isotropy problems. Lecture. Homework 6 solutions
Lecture 24 Th, Nov 29 The missing magnetic monopoles. Inflation, and how it solves our problems. Lecture. Homework 7 solutions.
Lecture 25 Tu, Dec 4 Quiz #4 and Solutions Structure formation in the Universe. Lecture.
Lecture 26 Th, Dec 6 Jeans length. Collapse in an expanding Universe, 3 case studies, radiation, matter, Lambda dominated. Lecture.
Class review Tu, Dec 11
Final Exam Th, Dec 15 Final Exam and its answers.