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3345.501 Techniques in Astronomical Observation

Various subjects in optical observational astronomy are covered:CCD imaging, photometry, spectoscopy, near-IR observation, data reduction, and image processing. Several observational projects are assigned.

3345.502 Radio Astronomy

Antenna and receiver systems of radio telescope and their operational principles are presented. Students will learn the types of antennae, the structure and feed system of parabola telescope, the calibration procedure, and the basic principle of interferometer. The frontend receiver including amplifiers and the various types of spectrometer are also introduced.

3345.503 Astrophysics

This course focuses on radiational, gravitational, and hydrodynamical processes which occur most frequently in astrophysical circumstances. Since the astronomical observations are done by using the light originating fromastronomical objects, understanding the radiation mechanism including the radiative transfer is most essential. The motion of astronomical objects are governed by the gravity. Since stars and galaxies usually form clusters, many-body dynamics is frequently needed area. Finally, most of the universe filled by fluid, and therefore, it is difficult to interprete the astronomical phenomena without understanding hydrodynamics. We approach these three areas from basic principles in order to be used in the forthcoming research activities for graduate students.

3345.504 Astronomical Spectroscopy and Lab.

Based on the atomic and molecular structure and spectra, students will study the optical spectra of normal and peculiar stars, curve of growth, abundance determination, measurements of radial velocity and rotational velocity accompanied with some experiments.

3345.505 Solar Physics

Currently conducted observational studies made from the ground-based optical and space-based UV/EUV, X-ray observatories (Yohkoh, SOHO and TRACE) are introduced. A wide range of observations made both for the quiet and the active sun are reviewed and their comprehensive physical characteristics are discussed.Theoretical and observational studies currently conducted for helioseismology and explosive solar phenomena such as solar flares, eruptive prominences, CME(Coronal Mass Ejection) are studied in details.

3345.506 Stellar Atmosphere

The lecture deals with the properties of radiation field, the processes of absorption and emission of the radiation,the energy transport in stellar atmospheres. Students are expected to investigate the characteristics of various model atmospheres and to synthesize line profiles and compare them with the observed ones.

3345.507 Interstellar Matter

This course offers a broad overview of the microscopic processes in and the physical properties of the interstellar medium, whose fundamental constituents are electrons, protons, neutral atoms and molecules, heavy element ions, dust grains, cosmic rays, photons, and magnetic fields. In the first part students will learn basic principles of quantifying interaction rates among the ISM species. In the second part theses principles will be applied to key observations of the galactic ISM to establish observational characteristics of diffuse HI clouds,interstellar dust clouds, dense molecular clouds, HII regions, and super-nova remnants. Finally a five-phase model of the ISM is introduced in a context of long term evolution.

3345.508 Astronomical Instrumentation and Lab.

Students learn the operational principles of astronomical instruments in diverse wavelength bands and how to analyze data obtained by using them which will potentially lead the students to design and fabricate new instruments with their own specification and observational goals.

3345.509 Interstellar Gas Dynamics

This course provides a broad understanding on the global distribution of the galactic ISM and the gas dynamical activities therein. In the first part students will learn basic MHD equations, virial theorem, energy principle analysis, shock waves, equilibrium of magnetized gas disk, equilibrium of interstellar clouds. The second part treats convective, thermal, Jeans, and Parker instabilities. The last part concerns with super-nova remnants, HII regions, and star formation.

3345.511 Extragalactic Astronomy and Cosmology

The internal structure and components of the Milky Way as a spiral galaxy are studied. The morphology, physical and chemical properties, distance measures, and the spatial clustering of external galaxies are also studied. Physical properties of groups, clusters, super-clusters of galaxies and of large-scale structures are reviewed. The standard model of the universe is introduced. Various cosmological models are reviewed and compared with recent observations. Key topics in the modern cosmology like the origin of the universe, the nflationary scenario, the cold dark matter, galaxy formation mechanisms, the cosmic background radiation are taught.

3345.512 Planetary Astrophysics

Recent observations from space probes, satellites and ground bases have opened comparative studies of the nine planets. In the first part students will learn profiles of magnetic fields, chemical composition, pressure, density, and temperature with altitude in the atmosphere of each planet. The planetary atmospheres are compared with each other and particularly with the earth. In the second part they will learn internal models of the planets, which are based on moment of inertia, surface temperature, size, mass, and composition of each planet. The last part concerns with the bimodality of terrestrial and Jovian planets.

3345.513 Stellar Structure and Evolution

All relevant observational facts to the stellar structure and evolution are reviewed, the governing equations are introduced, and physical states of stellar interior are examined. The structure and properties of main-sequence stars, early evolution of post main-sequence stars and their structures are studied, followed by the late stages of evolution. The evolutionary tracks are applied to open and globular clusters to obtain the ages of these clusters. Finally, the properties of compact objects such as white dwarfs and neutron stars are examined.

3345.514 Astronomical Magnetohydrodynamics

Fundamental principles and basic physics of magnetohydrodynamics, particle orbit theory, shock waves in plasmas, and macroscopic and microscopic stability of astrophysical plasmas are introduced with applications to a wide range of astrophysical systems, particularly in the Sun and other exotic celestial bodies.

3345.515 Radiation Process and Gas Dynamics

In order to understand the physical conditions of astrophysical objects, students learn various radiation mechanisms and radiative transfer of absorption, emission, and scattering. Using magnetohydrodynamical methodology, they also study the instabilities, shocks, and dynamics of the celestial objects.

3345.516 Stellar Dynamics and Gravitation

The gravitation is the most dominant force in the universe. The gravitational law applicable to stellar systems is the well-known Newtonian gravity, but the solutions for the many-body systems are almost impossible to obtain. Therefore, various statistical methods are widely used, and numerical integrations are often done with fast computers. In this course, we introduce the statistical methods for N-body systems, and apply them to the study of the structure, dynamical instability, and dynamical evolution of stellar systems. The stellar system is regarded as a continuous fluid to obtain the 'stellar orbits' that can be characterized by a small number of parameters. The collisionless Boltzmann equation (CBE) is introduced and we discuss the dynamical properties that can be inferred from the CBE. Finally, we apply the kinetic theory originating from gas dynamics to study dynamical evolution of stellar systems.

3345.701 Topics in Observational Astronomy

In order to understand the physical conditions of astrophysical objects, students learn various radiation mechanisms and radiative transfer of absorption, emission, and scattering. Using magnetohydrodynamical methodology, they also study the instabilities, shocks, and dynamics of the celestial objects.

3345.702 Topics in Astronomical Spectroscopy

This course consists of student presentations and discussions on selected topics in recent stellar spectroscopy.

3345.703 Topics in Extragalactic Astronomy
3345.704 Seminar in Astrophysics

Selected topics from recently published research papers are addressed.

3345.705 Research in Theoretical Astronomy

Papers in theoretical astronomy are reviewed.

3345.706 Research in Observational Astronomy
3345.707 Topics in Current Astronomy

This is an intensive astronomy course consisting mostly of student presentations and discussions.

3345.708 Topics in Radio Astronomy
3345.710 Topics in Cosmology

Recent topics in extra-galactic astronomy and cosmology are introduced and new research projects are examined.

3345.711 Topics in Solar Physics
3345.712 Topics in Physics of Interstellar Medium
3345.713 Topics in Celestial Mechanics

3342.803 Reading and Research
Astronomy Program, Department of Physics and Astronomy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
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