Global Arc

How do we observe and model the universe? We discuss the wide range of observational tools available to the modern astronomer: from space-based gamma-ray telescopes, to globe-spanning radio interferometers, to optical telescopes and particle detectors. We review basic statistics, introduce techniques used to interpret modern data sets containing millions of galaxies and stars, and describe numerical methods used to model these data. The course is problem-set-based and focused on tools needed for independent research in astrophysics. PHY103/104 or 105/106, and MAT103/104 required. AST204 and programming experience are helpful but not required.

We develop the scientific ideas behind fission and fusion energy. For fission we move from elementary nuclear physics to calculations of chain reactions, understanding how both reactors and nuclear weapons work. We examine safety and waste concerns, as well as nuclear proliferation. We look at new reactor concepts. For fusion we address the physics of confining hot, ionized gases, called plasmas. We address the control of large-scale instabilities and small-scale turbulence. We examine progress and prospects, as well as challenges, for the development of economically attractive fusion power.

Topics include the properties and nature of galaxies, quasars, clusters, superclusters, the large-scale structure of the universe, dark matter, dark energy, the formation and evolution of galaxies and other structures, microwave background radiation, and the evolution of the universe from the Big Bang to today. Two 90-minute lectures. Prerequisites: MAT 201, 202; PHY 207, 208. Designed for science and engineering majors.

Stars form from the interstellar medium (ISM), and the nuclear fusion that powers stars is also the main energy source in the ISM. This course discusses the structure and evolution of the ISM and stars. Topics include: physical properties and methods for studying ionized, atomic, and molecular gas in the ISM; dynamics of magnetized gas flows and turbulence; gravitational collapse and star formation; structure of stellar interiors; radiation transport; production of energy by nucleosynthesis; stellar evolution and end states; effects of stars on interstellar environment. Prerequisites: MAT 201, 202; PHY 208, 301 or permission of instructor.