Published in 2002

• Lee, H.-C., Lee, Y.-W., & Gibson, B. K. 2002,
  "Blue Horizontal-Branch Stars and Simple Stellar Populations", in Proceedings of the ESO Workshop "Extragalactic Globular Cluster Systems", August 2002, Garching bei Muenchen(Germany), ed. Kissler-Patig M., Springer-Verlag

• Lee, H.-C., Lee, Y.-W., & Gibson, B. K. 2002,
  "Horizontal Branch Morphology and the Photometric Evolution of Old Stellar Populations", AJ, in press (November 2002 issue of The Astronomical Journal)

• Courteau, S., Sohn, Y.-J., et al. 2002,
  "Galaxy Evolution from Optical Emission Lines", The Mass of Galaxies at Low & Hi gh Redshifts, in press

• Wu, Hong, Byun, Y.-I., et al. 2002,
  "Intermediate-Band Surface Photometry of the Edge-on Galaxy NGC4565", AJ, 123, 1364

• Chang, H.-Y., Yoon, S.-J., & Choi, C.-S. 2002,
  "A New Distance Estimator and Spatial Distribution of Gamma-ray Bur sts Observed by BATSE", A&A, 383, L1

• Chang, H.-Y., Yoon, S.-J., et al. 2002,
  "Gamma-Ray Burst Light Curves Seen by Fourier Analysis: Cosmological Time Dilation and a Use as a New Distance Estimator", Proceedings of the 2nd KIAS Astrophysics Workshop, Current High Energy Emission around Black Holes, p. 274

• Sohn, Y.-J. 2002,
  "Vertical Density Distribution of the Galaxy from Star Count Analysis", JASS, 19, 19

• Chun, M.-S., & Sohn, Y.-J., et al. 2002,
  "12^Co, 13^CO, and C^18O Observations toward OMC-1", JASS, 19, 7

• D.D.Walker, A.T.H. Beaucamp, R.G.Bingham, D. Brooks, R.Freeman, S.-W. Kim, A. King, G. McCavana, R. Morton, D. Riley, & J.Simms 2002,
  "The Precessions Process for Efficient Production of Aspheric Optics for Large Telescopes and Their Instrumentation", SPIE. Vol. 4842, in press

• Yoon, S.-J., & Lee, Y.-W. 2002,
  "An Aligned Stream of Low-Metallicity Clusters in the Halo of the Milky Way" ,http://www.sciencemag.org Science 297, 578 JULY 2002

• Kim, S.-W., Lee, Y.-W., Byun, Y.-I., Sohn, Y.-J., Rey, S.-C., Lee, J.-W., Chris Martin, Peter Friedman and David Schiminovich, 2002,
  "GALEX Project: Science and Instrument", in Proceedings of the 12th Workshop on Optical Technology, Edi Optical Technology Division, Korean Optical Society, p. 56

• Lee, Y.-W., Rey, S.-C., Ree, C. H., Joo, J.-M., Sohn, Y.-J., Yoon, S.-J., & Walker, A. 2002,
  "Omega Centauri as a Disrupted Dwarf Galaxy: Evidence from Multiple Stellar Populations", Omega Centauri: a unique window into astrophysics, eds., van Leeuwen, F., Piotto, G. and Hughes, J., vol. 265, p. 305

• Yoon, S.-J., & Lee, Y.-W. 2002,
  "Accretion of Globular Clusters from Satellite Galaxies", Omega Centauri: a unique window into astrophysics, eds., van Leeuwen, F., Piotto, G. and Hughes, J., p. 381

• Ree, C. H., Yoon, S.-J., Rey, S.-C., & Lee, Y.-W. 2002,
  "Synthetic Color-magnitude Diagrams for Omega Centauri and Other Massive Globular Clusters with Multiple Populations", Omega Centauri: a unique window into astrophysics, eds., van Leeuwen, F., Piotto, G. and Hughes, J., ASP Series, Vol.265, 101

• Rey, S.-C., Joo, J.-M., Sohn, Y.-J., Ree, C. H., Lee, Y.-W., & Walker, A. 2 002,
  "Wide-field Precision CCD Photometry of Omega Centauri and its RR Lyrae Stars", Omega Centauri: a unique window into astrophysics, eds., van Leeuwen, F., Piotto, G. and Hughes, J., ASP Series, Vol.265, 177

• Kim, S.-W., Walker, D., & Brooks, D. 2002,
  "Active Profiling and Polishing for Efficient Control of Material Removal on Large Precision Surfaces with Moderate Asphericity", Mechatronics, in press

• Lee, J.-W., & Carney, B. W. 2002,
  "Chemical Abundances of Three Metal-Poor Globular Clusters (NGC 6287, NGC 6293 and NGC 6541) in the Inner Halo", AJ, 124, 1511

• Lee, J.-W., & Carney, B. W. 2002,
  "Near-Infrared Photometry of the Globular Cluster Palomar 6", AJ, 123, 3305

Published in 2001

• Chun, M.-S., & Sohn, Y.-J., et al. 2001,
  "Stellar Population Synthesis of the Elliptical galaxy NGC 4649", JASS, 18, 175

• Lee, J. -W., Carney, B. W., Fullton, L. K., & Stetson, P. B. 2001,
  "Near-Infrared Photometry of Globular Clusters NGC 6287 and NGC 6341 (M92): The Formation of the Galactic Halo", Astronomical Journal, 201, 122, 3136

• Yi, S., Demarque, P., Kim, Y.-C., Lee, Y.-W., Ree, C. H., Lejeune, T., & Barnes, S. 2001,
  "Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture", ApJS, 136, 417

• Rey, S.-C., Yoon, S.-J., Lee, Y.-W., Chaboyer, B., & Sarajedini, A. 2001,
  "CCD Photometry of Classic Second Parameter Globular Clusters M3 and M13", AJ, 122, 3219

• Lee, H.-C. 2001,
  "Spectrophotometric Evolution of Old Stellar System", PASP, 113, 1021

• Kim, S.-W., & Jee, M.-K. 2001,
  "Evolution of Surface Characteristics in Material Removal Simulation with Sub-Aperture Tools", SPIE, 4411, 112

• Kim, S.-W., & Walker, D. 2001,
  "Measurement of Two Dimensional Distribution of Pure Axial Force in Active Polishing", Measurement Science and Technology, 12, 1976

• Lee, Y.-W., Yi, S., Yoon, S.-J., Sohn, Y.-J., Rey, S.-C., & Byun, Y.-I. 2001,
  "The Evolution of UV Flux from Elliptical Galaxies as Probes of Star Formation History in the Early-type Systems", BAAS, 198, 5504

• Yi, S., Lee, Y.-W., Lee, H.-c, Sohn, Y.-J., Rey, S.-C., & Byun, Y.-I. 2001,
  "UV Observation of Globular Clusters in External Galaxies using GALEX: Clue to the Galaxy Formation History", BAAS, 198, 5501

• Yoon, S.-J., Lee, Y.-W., Yi, S., Sohn, Y.-J., Rey, S.-C., & Byun, Y.-I. 2001,
  "The UV Color Gradients within Nearby Ellipticals and Spiral Bulges as Probes of their Formation History", BAAS, 198, 5505

• Kim, Y.-C., Yi, S., & Demarque, P. 2001,
  "Yonsei-Yale Isochrones: the Status Report", BAAS, 198, 4301

• Sohn, S., Rey, S.-C., Lee, Y.-W., & Chaboyer, B. 2001,
  "CCD Photometry of RR Lyrae Variables in the Globular Cluster M53", BAAS, 198, 4602

• Lee, H.-c., Yoon, S.-J., & Lee, Y.-W. 2001,
  "The H beta Index As a Chronometer of Extragalactic Globular Cluster Systems", in IAU Symposium 207 on Extragalactic Star Clusters, eds. Grebel, E. K., Geisler,D., and Minniti, D., in press

• Lee, Y.-W., Lee, H.-c., Yoon, S.-J., Rey, S.-C., & Chaboyer, B. 2001,
  "Relative Ages from Horizontal-Branch Morphology: Revisited", in IAU Symposium 207 on Extragalactic Star Clusters, eds. Grebel, E. K., Geisler, D., and Minniti, D., in press

• Woo, J.-H., Demarque, P., & Yi, S. 2001,
  "Modification of the Core Overshoot Treatment", in IAU Symposium 207 on Extragalactic Star Clusters, eds. Grebel, E. K., Geisler, D., and Minniti, D., in press

• Lee, Y.-W., Yoon, S.-J., Rey, S.-C., & Chaboyer, B. 2001,
  "The Horizontal Branch Mor phology as an Age Indicator", in Astrophysical Ages and Time Scales, eds, Te d von Hippel, Manset, N., & Simpson, C., p.343

• Lee, H.-c., Yoon, S.-J., & Lee, Y.-W. 2001,
  "Age Estimation of Extraga lactic Globular Cluster Systems Using the H-beta index", in Astrophysical Ag es and Time Scales, eds, Ted von Hippel, Manset, N., & Simpson, C., p.445

• Demarque, P., Yi, S., & Kim, Y.-C. 2001,
  "Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrone", in IAU Symposium 207 on Extragalactic Star Clusters, eds. Grebel, E.K., Geisler, D.,& Minniti, D., in press

• Demarque, P., Yi, S., & Kim, Y.-C. 2001,
  "Update on Globular Cluster Ages", in New Quests in Stellar Astrophysics: The Link between Stars and Cosmology, in press

• Sohn, Y.-J. 2001,
  "Metallicity of Globular Cluster NGC 5053 from VI CCD Photometry", JASS, 18, 7

• Sohn, Y.-J. 2001,
  "Ultraviolet Isophote Shapes of Nearby Elliptical Galaxies and Spiral Bulges", JKAS, in press

• Lee, Y.-W., Rey, S.-C., & Yoon, S.-J. 2001,
  "The Origin of the Galactic Globular Cluster System: New Evidence for Accretion", in KAO Workshop on Optical Astronomy 2001 - Star Cluster, eds. Kim, S.-L., & Kyong, J.-M., 159

• Rey, S.-C., Park, G.-H., Lee, Y.-W., Park, J.-H., & Sung, E.-C. 2001,
  " Metallicity Determination of Globular Clusters from Photometric Method", in KAO Workshop on Optical Astronomy 2001 - Star Cluster, eds. Kim, S.-L., & Ky ong, J.-M., 185

• Milliard, B., Martin, C., Bianchi, L., Byun, Y.-I., Donas, J., Heckman, T., Lee, Y. -W., Madore, B., Malina, R., Friedman, P., Rich, M., Schiminovich, D., Siegmund, O., Szalay, A. S. 2000-2001,
  "The Galaxy Evolution Explorer (GALEX)", Mining the Sky, Proceedings of the MPA/ESO/MPE Workshop held at Garching, Germany, 31 July-4 August, 2000. Edited by A. J. Banday, S. Zaroubi, and M. Bartelmann. Heidelberg: Springer-Verlag, 2001., p .201

Published in 2000

• Demarque, P., Zinn, R., Lee, Y.-W., & Yi, S. 2000
  "The Metallicity Dependence of RR Lyrae Absolute Magnitudes from Synthetic Horizontal-Branch Models", AJ, 119, 1398

• Rey, S.-C. Lee, Y.-W., Joo, J. -M., Walker, A., & Baird, S. 2000
  "CCD Photometry of the Globular Cluster Omega Centauri. I. The Metallicity of RR Lyrae Stars from Caby Photometry", AJ, 119, 1824
  

• Yong, H., Demarque, P., Yi, S. 2000,
  "Mass Loss on the Horizontal Branch: an Application to NGC 6791", ApJ, 539, 928

• Kong, S., Byun, Y.-I., et al. 2000,
  "Spatially Resolved Spectrophotometry of M81: Age, Metallicity, and Reddening Maps", AJ, 119, 2745

• Yan, H., Byun, Y.-I., et al. 2000,
  "Calibration of the BATC Survey: Methodology and Accuracy", PASP, 112, 691

• Chun, M.-S., & Sohn, Y.-J. 2000,
  "Spectra of HII Regions in Spiral Galaxies and Galactic Globular Clusters", PKAS, 15S, 1

• Sohn, Y.-J., & Lee, H.-c. 2000,
  "Metallicities of Globular Clusters M3 and M5 from VI CCD Photometry", JASS, 17, 1

• Sohn, Y.-J. 2000,
  "Absorption Line Gradients in the Bulge of Sa Type Galaxy M104", JASS, 17, 125

• Sohn, Y.-J. 2000,
  "Metallicity of Globular Cluster M13 from VI CCD Photometry", JASS, 17, 133

• Yi, S. 2000
  "Is LBDS 53W091 Really 3.5 Gyr Old?", in The Birth of Galaxies, in press

• Rhee, M.-H. 2000,
  "Inter-Correlation of Errors in the Tully-Fisher Relation", in Cosmic Flows 1999: Towards an Understanding of the Large-Scale Structure, eds. Courteau, S., Strauss, M., & Willick, J. A., pp.134-137

• Yi, S. 2000
  "Hot Stars in Old Metal-Rich Stellar Systems" in The Third Conference on Faint Blue Stars, eds.(New York: L. Davis Press), 161

• Yi, S., Brown, T., Heap, S., Hubeny, I., Landsman, W., Lanz, T., & Sweigart, A. 2000
  "On the Age of LBDS 53W091", ApJ, 533, 670

• Kim, Y.-C. & Chan, K. L. 2000
  "The turbulent pressure at the Highly Superadiabatic Layer of the Sun", in preparation

• Rhee, M.-H. 2000
  "Sytematic effcts of errors in the Tully-Fisher relation", in preparation

• Lee, H.-c., Yoon, S.-J., & Lee, Y.-W. 2000
  "The H beta Index As an Age Indicator of Globular Clusters: The effects of Horizontal-Branch Stars", AJ, 120, 998

• Yim, H.-S., Byun ,Y.-I., Sohn,Y.-J., & Chun, M.-S. 2000
  "Main-sequence Luminosity Function of M13", AJ, 120, 872

• Kim, S.-W., & D., Walker 2000
  "Optics, Fabrication and Polishing; A Long Evolution from Black Art to 21st Century Engineering" , The Proceedings of The 10th Annual KSEA South-West Regional Conference on "prospects for Science and Technology in the 21st Century"