ASTRONOMY / 97


ATY 511-SOLAR SYSTEM ASTROPHYSICS 2. 3 credits
ATY 521-POSITIONAL ASTRONOMY 1. 3 credits
ATY 522-POSITIONAL ASTRONOMY 2. 3 credits

 GRADUATE COURSES
ATY 601-CELESTIAL MECHANICS 1. 3 credits
 Prerequisites: ATY 317, PS 500. Analytical and numerical computation of orbits.
First half of ATY 601-602.
ATY 602-CELESTIAL MECHANICS 2. 3 credits
 Prerequisite: ATY 601. Second half of ATY 601-602.
ATY 605-STELLAR ASTROPHYSICS 1. 3 credits
 Prerequisites: ATY 316, ATY 317. Theoretical and observational approach to
evolution, dynamics, and equilibria of stars and star systems.
ATY 606-STELLAR ASTROPHYSICS 2. 3 credits
 Prerequisite: ATY 605. Continuation of ATY 605.
ATY 607-STELLAR ASTROPHYSICS 3. 3 credits
 Prerequisite: ATY 606. Continuation of ATY 606.
ATY 608-GALACTIC STRUCTURE. 3 credits
 Kinematics and dynamics of the galaxy.
ATY 611-RADIO ASTRONOMY 1. 3 credits
 Prerequisites: ATY 316, ATY 317. Corequisites: PS 510 and PS 515. Measure-
ment parameters; instrumentation of radio and radar astronomy; emission mech-
anism theories; radio propagation in plasmas; observational results of radio and
radar astronomy and their interpretation.
ATY 612-RADIO ASTRONOMY 2. 3 credits
 Prerequisite: ATY 611. Continuation of ATY 611.
ATY 613-RADIO ASTRONOMY 3. 3 credits
 Prerequisite: ATY 612. Continuation of ATY 612.
ATY 621-ASTRONOMICAL TECHNIQUES 1. 3 credits
 Prerequisite: ATY 317. Theory and practice in the design and use of astronomi-
cal instruments; observation and reduction procedures used in applications such as
astronomical photography, spectroscopy, and photo-electric photometry.
ATY 622-ASTRONOMICAL TECHNIQUES 2. 3 credits
 Prerequisite: ATY 621. Continuation of ATY 621.
ATY 623-ASTRONOMICAL TECHNIQUES 3. 3 credits
 Prerequisite: PS 410 or equivalent. Theory and practice in design, construction,
and use of radio astronomical instruments. Emphasis on design and construction
of special radio astronomy receiving and antenna systems. Measurement techniques
necessary for construction and use of systems are presented.
ATY 624-ASTRONOMICAL TECHNIQUES 4. 3 credits
 Prerequisite: ATY 623. Continuation of ATY 623.
ATY 631-EXTRAGALACTIC ASTRONOMY AND COSMOLOGY. 3 credits
 Methods of modern cosmology; cosmological models.
ATY 633-RADIOPROPAGATION AND IONOSPHERIC PHYSICS 1. 3 credits
 Identical with PS 633. Prerequisite: PS 410 or equivalent. Propagation of
electromagnetic waves in a magneto-ionic medium; scattering from density fluctua-
tions; whistlers; models of neutral atmosphere; neutral winds; atomic, molecular,
and plasma properties of ionospheric interest.