The University of Arizona  1993-95 General Catalog

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Astronomy (ASTR)
949 N. Cherry Avenue, Room N204
(520) 621-2288

Professors Peter A. Strittmatter, Head, J. Roger Angel, W. David
Arnett, John Black, Adam Burrows, Thomas Gehrels (Lunar and
Planetary Laboratory), William F. Hoffmann, J. R. Jokipii, Robert
C. Kennicutt, Jr., James W. Liebert, Frank J. Low, George H.
Rieke, Elizabeth Roemer, Thomas L. Swihart, Rodger I. Thompson,
William G. Tifft, Neville J. Woolf

Astronomer Craig B. Foltz

Associate Professors Willy Benz, John Bieging, William J. Cocke,
Christopher Impey, Fulvio Melia, Andrzej G. Pacholczyk, Marcia
Rieke, Gary D. Schmidt, Raymond E. White

Assistant Professors Jill Bechtold, Christopher Walker

Associate Astronomers Donald W. McCarthy, Jr., Erick T. Young

The Department of Astronomy offers several introductory general
education courses, as well as Bachelor of Science, Master of
Science, and Doctor of Philosophy degree programs. For graduate
admission and degree requirements, consult the Graduate Catalog.

Major: The B.S. in Astronomy major is designed to prepare
students for graduate work or professional employment in
astronomy, astrophysics, and related fields. The curriculum
combines courses and research in astronomy and astrophysics with
a strong foundation of courses in physics and mathematics. The
major requires 33 units. Required courses are ASTR 300a-300b,
302, 400a-400b, and 499 (senior research project); PHYS 410,
415a, 425, and 435; and a 3-unit course in mathematics,
statistics, or computational techniques, selected from a list
approved by the department. (Students pursuing a double major
with physics may substitute other upper-division courses in
astronomy, mathematics, physics, or planetary science for the
physics courses listed above.) Prerequisites to the required
courses include MATH 125a-125b, 223, 254; and PHYS 111a-111b,
112a-112b (or 110, 116, 121, 330). As explained below, these
prerequisite courses may be used to fulfill the minor
requirement. A theoretical astrophysics concentration is also
available to majors in this department. This concentration is an
informal program of mentoring and research opportunities for
students with high academic standing. Interested students should
contact their department advisor for information about this

Prospective students should be aware that the curriculum for this
major is very demanding, and requires solid preparation in high
school mathematics and science. A student who lacks such
preparation should expect to take longer than four years to
complete the degree requirements.

Minors: For department majors, an optional structured minor
consisting of MATH 125a-125b, 223, and 254; and PHYS 111a-111b
(or 110, 116) is available. Other minor options are available to
students in other departments. These include a 20-unit technical
minor, mainly for science and engineering majors, and a 20-unit
liberal arts minor for students in other fields. Consult the
College of Arts and Sciences or the astronomy department office
for details.

Teaching Majors: The department does not offer a teaching major
in astronomy. However, students interested in secondary school
science teaching may earn teaching majors in Physics or Earth
Science (which includes astronomy). Information on these majors
is given under the catalog listings for the Department of Physics
and the Department of Geosciences, respectively.

The department participates in the Honors Program.

100.* Essentials of Astronomy (3) I II S A survey of astronomy,
with attention to its interdisciplinary aspects and its
relationships to other sciences. Planetarium work and some night-
time observing sessions and field trips supplement class
lectures. Primarily for nonscience majors.

101L. Astronomy Laboratory (1) I II S Projects, telescope
observing, planetarium work, discussions. Can be taken alone or
with 100. Combination is equivalent to 110a. Labwork includes
frequent mathematical calculations using basic algebra.
Recommended preparation is satisfactory completion of the
University entrance requirement in mathematics.

105. The Universe and Humanity: Origin and Destiny (3) I II
(Identical with PTYS 105)

106. Survey of the Solar System (4) I II (Identical with PTYS

110a-110b.* Introductory Astronomy (4-4) A broad introduction to
traditional and modern astronomy combining class lectures,
planetarium and lab. work, and night-time observing and field
trips. 110b: P, 100 or 110a. Labwork includes frequent
mathematical calculations, using basic algebra. Recommended
preparation is satisfactory completion of the University entrance
requirements in mathematics.

*Credit will be allowed for only one of the following: 100 or

300a-300b. Astronomy and Astrophysics (3-3) I II A quantitative
approach to astronomy and astrophysics. P, MATH 125a; PHYS 110 or

302. Introduction to Observational Astronomy (3) II Observational
applications of coordinate systems and time; basics of
astronomical instruments; photodetectors; measuring equipment and
reduction  techniques. Practice in observing. 2R, 3L. P, MATH

320. Philosophical and Historical Aspects of Astronomical Thought
(3) II Historical development of astronomical concepts and the
scientific method; cosmological concepts from ancient times to
the present; controversies in astronomy in the recent past and at

400a-400b. Theoretical Astrophysics (3-3) Stars, interstellar
matter, galaxies, radio sources, cosmology. P, MATH 254, 6 units
upper-division physics. 400a is a Writing-Emphasis Course. P,
Satisfaction of the upper-division writing-proficiency
requirement (see "Writing-Emphasis Courses" in the Academic
Policies and Graduation Requirements section of this catalog).

403. Introduction to the Solar System (3) I 1993-94 (Identical
with PTYS 403) May be convened with 503.

418. Modern Astronomical Instrumentation and Techniques (3) I
1993-94 Radiant energy; signals and noise; detectors and
techniques for imaging, photometry, polarimetry and spectroscopy.
Examples from stellar and planetary astronomy in the x-ray,
optical, infrared and radio. (Identical with PTYS 418) May be
convened with 518.

502. Astronomical Instrumentation Project (3) II 1993-94 Design,
construction, and testing of an astronomical instrument chosen by
each student under the guidance and supervision of the
instructor. Regular class sessions are devoted to discussing
techniques and reporting progress and problems.

503. Introduction to the Solar System (3) I 1993-94 (Identical
with PTYS 503) May be convened with 403.

515. Interstellar Medium and Star Formation (3) II 1994-95
Derivation of physical conditions from spectral data. Ionized,
atomic and molecular clouds, interstellar dust and magnetic
fields. Ionization equilibrium, heating and cooling, shocks,
dynamics, collapse and fragmentation, outflows and protostellar

518.  Modern Astronomical Instrumentation and Techniques (3) I
1993-94 For a description of course topics, see 418. Graduate-
level requirements include an in-depth research paper. (Identical
with PTYS 518) May be convened with 418.

522. Atomic and Molecular Astrophysics (3) I 1994-95
Interpretation of astronomical spectra: basic aspects of atomic
and molecular spectra and processes that enable one to infer
physical conditions in astronomical environments from analysis of
their electromagnetic spectra. Familiarity with basic quantum
mechanics is assumed.

523. Statistical Mechanical Problems in the Space Sciences (3) I
1994-95 (Identical with PTYS 523)

535. Stellar Structure (3) II 1993-94 Equations of stellar
structure, virial theory, energy transport, equations of state,
opacities, nuclear reactions, stellar models, evolution of low
and high mass stars, observational tests, rotation and magnetic
fields, binary evolution.

540. Structure and Dynamics of Galaxies (3) I 1994-95
Observational properties of galaxies; structure, kinematics, star
and gas content. Structure of our own galaxy. Dynamics of stellar
systems: equilibria, instabilities, internally and externally
driven evolution.

541. Extragalactic Astronomy and Cosmology (3) II 1994-95 The
structure, origin and evolution of the physical universe from
theory and observations of systems outside our own galaxy.
Relativistic cosmology; galaxy evolution and clustering; active
galaxies and quasars; the microwave background; galaxy formation;
the hot big bang; and physics of the early universe. P, 540.

545. Stellar Atmospheres (3) I 1993-94 Radiative transfer, gray
atmosphere, opacity, line formation, non-LTE, curves of growth,
stellar hydrodynamics, planetary applications. (Identical with
PTYS 545)

553. Solar System Dynamics (3) II 1993-94 (Identical with PTYS

555. Remote Sensing of Planetary Surfaces (3) II 1993-94
(Identical with PTYS 555)

556a-556b. Electrodynamics of Conducting Fluids and Plasmas (3-3)
1994-95 (Identical with PTYS 556a-556b)

575. General Relativity and Cosmology (3) II 1994-95 General
relativity with application to celestial mechanics, stellar
structure, gravitational radiation, black holes, gravitational
lensing and cosmology. Cocke

582. High Energy Astrophysics (3) II 1993-94 Radiation
mechanisms, synchrotron radiation, charged particle acceleration,
pulsars, black holes, accretion disks, X-ray binaries, gamma-ray
sources, radio galaxies, actice galactic nuclei. (Identical with
PHYS 582 and PTYS 582)

589. Topics in Theoretical Astrophysics (3) [Rpt.] I (Identical
with PHYS 589)


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