Astro 513:  Stellar Systems Discussion of observations of stars in the solar neighborhood, the overall structure of our galaxy, external galaxies, and clusters of galaxies; stellar populations and the evolution of the stellar content of galaxies; dynamical theory of the equilibrium and stability of stellar systems neglecting encounters; and relaxation, dynamical friction, cluster evolution and the introduction to the Fokker-Planck equation. Instructor(s): S. Tremaine

Astro 514:  Structure of the Stars Theoretical and numerical analysis of the structure of stars and their evolution. Topics include a survey of the physical processes important for stellar interiors (equation of state, nuclear reactions, transport phenomena); macroscopic properties of stars and their stability; evolution of single and binary stars; mass loss and accretion of matter; and accretion disks. Emphasis is given to numerical modeling of various types of stars. Instructor(s): B. Paczynski and J. Goodman

Astro 517:  Diffuse Matter in Space Discussion of the important physical processes in the interstellar medium, including heating and cooling, atomic and molecular excitation, chemical reactions, ionization and recombination, radiative transfer, fluid dynamics, and physics of interstellar dust. Review of observational evidence from which properties of the interstellar medium are inferred. Problems considered include physical conditions in interstellar clouds, interstellar shock waves, effects of cosmic rays, magnetic fields, and star formation. Instructor(s): B.T. Draine

Astro 520:  High-Energy Astrophysics Astrophysical applications of electrodynamics, nuclear, and particle physics.  Topics my include synchrotron emission and absorption, comptonization, pair plasmas, jets, extragalactic radio sources, compact objects, cosmic rays, and neutrino astrophysics.  Instructor(s): D.N. Spergel, J. Goodman, and B. Paczynski

Astro 522:  Extragalactic Astronomy A survey course covering the principal current areas of research on extragalactic objects, their physical properties, origin, evolution, and distribution in space. Topics covered include quasar physics, formation, evolution, and clustering of galaxies and the general problem of large-scale structure and motion in the universe. Instructor(s):  J. Gunn

Astro 541:  Seminar in Theoretical Astrophysics Designed to stimulate students in the pursuit of research. Participants in this seminar discuss critically papers given by seminar members. Ordinarily, several staff members also participate. Often, topics are drawn from published data that present unsolved puzzles of interpretation. Instructor(s): J. Goodman

Astro 542:  Seminar in Observational Astrophysics This seminar considers in detail a variety of observational techniques, with an emphasis on what they can and cannot accomplish with regard to various specific astrophysical problems. Several staff members with interest in different areas of observational astronomy participate. Instructor(s): G.R. Knapp, Staff

Astro 545, 546:  Special Topics in Astrophysics A series of lectures on advanced problems in the field.  For this course, topics of current special interest are selected, such as the interiors of the planets, extragalactic research, high-energy astrophysics, or astronomical experiments on rockets and satellites.  Often this course is given by a visiting astronomer.  Instructor(s): Staff

Physics 523:  Introduction to Relativity Special relativity, general relativity, experimental tests, relativistic cosmology, Lagrangian formulations, quantum gravity and supergravity are studied. Instructor(s):  I. Klebanov

Physics 533, 534:  Relativity The course explores topics in gravity, supergravity and string gravity, and problems in quantization and different dimensionalities. Also studied are the impact on particle physics and cosmology, discrete space-times and topology changes. Instructor(s):  L.Thorlacius

Physics 563, 564:  Physics of the Universe:  Origin and Evolution The course focuses on selected topics in cosmology, with emphasis on empirical approaches. The standard cosmological model for the expanding universe and the classic cosmological tests are discussed. Recent observations are used to estimate up-to-date "best guesses" for cosmological parameters. The roles that evolution of galaxies and clusters of galaxies play in the determination of cosmological parameters are covered in detail. New methods of using observations to estimate cosmological parameters are discussed. Instructor(s):  U. Seljak and P. Steinhardt