Dr. Yong -Cheol Kim

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Man does not cease to play because he grows old.
Man grows old because he ceases to play. - Unknown

Curriculum Vitae

YONG -CHEOL KIM

Address
Astronomy Department
Room 619, Building 322
Yonsei University
50 Yonsei-ro, Seodaemun-gu,
Seoul 03722
KOREA

Phone
Work : +82 - (0)2 - 2123 - 2682
Fax : +82 - (0)2 - 392 - 7680

E-mail: yckim@yonsei.ac.kr


Education:
		Ph.D., Astronomy, Yale University, 1993
		M.Phil., Astronomy, Yale University, 1989
		M.S., Astronomy, Yale University, 1988
		B.S., Astronomy and Meteorology (minor in Physics), Yonsei University, 1986

Ph.D. Dissertation:
		Supervisor:  Prof. Pierre Demarque, Department of Astronomy, Yale University
		Advisor:  Dr. Peter A. Fox, HAO/NCAR
		Title:Stellar Photospheric Convection and its Effect on Spectral Line Asymmetry

Research Experience/Interests:
		Computational Fluid Dynamics, Radiation-Hydrodynamics, Spectral Line Synthesis,
		Stellar Structure and Evolution, Helioseismology/Asteroseismology

Professional Memberships:
                Korean Astronomical Society
                Korean Space Science Society
                American Astronomical Society, Solar Physics Division
                International Astronomical Union (IAU)


Experience:

2003 -- present:: Full Professor, Astronomy Department, Yonsei University, Korea
2007 :: Visiting Scholar, Lowell Observatory, Flagstaff, AZ, USA.
2000 -- 2003:: Associate Professor, Astronomy Department, Yonsei University, Korea
1997 -- 2000:: Research Professor, Center for Space Astrophysics, Yonsei University, Korea
1996 -- 1997:: Postdoctoral Research Associate, Astronomy Department, Yale University, CT, USA
1995 -- 1996:: Visiting Researcher (Research Associate), Hong Kong University of Science and Technology, Hong Kong.
1993 -- 1995:: Postdoctoral Associate, Center for Solar and Space Research, Yale University, CT, USA

Bibliography

Refereed Publications

Spada, F., Demarque, P., Kim, Y. -C., Boyajian, T. S., and Brewer, J. M.: `YaPSI: A new database of evolutionary tracks and isochrones'(2018) IAU Symposium , 13(S334), 362 -- 363
Publication Date: 2018 Aug 7
Spada, F., Demarque, P., Kim, Y. -C., Boyajian, T. S., and Brewer, J. M.: `The Yale-Potsdam Stellar Isochrones (YAPSI)', (2017), The Astrophysical Journal, 838, article ID 161 (16pp)
Publication Date: 2017 April 1
Beom, M., Na, C., Ferguson, J. W., and Kim, Y. -C.: `The effects of individual metal contents on isochrones for C, N, O, Na, Mg, Al, Si, and Fe', (2016), The Astrophysical Journal, 826, article ID 155 (10pp)
Publication Date: 2016 August 1
Galbany, L., Kim, Y. -C., et. al.: `UBVRIz Light Curves of 51 Type II Supernovae', (2016), The Astronomical Journal, 151, article ID 33
Publication Date: 02/2016
Spada, F., Demarque, P., Kim, Y. -C., and Sills, A.: `The Radius Discrepancy in Low Mass Stars: Single vs. Binaries', (2013), The Astrophysical Journal, 776, article ID 87
Publication Date: 10/2013
Bach, K. and Kim, Y.-C.: `Hydrodynamical comparison test of solar models', (2012), Astronomische Nachrichten (aka, Astronomical Notes), 333, 934 -- 938
Publication Date: 12/2012
Barnes, S. and Kim, Y. -C.: `Angular Momentum Loss from Cool Stars: An Empirical Expression and Connection to Stellar Activity', (2010), The Astrophysical Journal,721, 675 -- 685
Publication Date: 09/2010 ; Associated Erratum: 2011, ApJ, 729, 150
Yi, S. K. and Kim, Y. -C.: `Impact of the Low Solar Abundance on the Ages of Globular Clusters', (2010), Journal of the Korean Astronomical Society,43, 135 -- 139
Publication Date: 08/2010
Bach, K., Lee, J., Demarque, P., and Kim, Y.-C.: `Evolutionary Status of 85 Pegasi', (2009), The Astrophysical Journal, 703, 362 -- 369
Publication Date: 09/2009
Bach, K., Kim, Y. -C., and Demarque, P.: `Calibration of Stellar Parameters of 85 Peg System', (2007), Journal of Astronomy and Space Sciences, 24, 31 -- 38
Publication Date: 03/2007
Jung, Y. K. and Kim, Y. -C.: `Pre-Main Sequence Evolutions of Solar Abundances Low Mass Stars', (2007), Journal of Astronomy and Space Sciences, 24, 1 -- 30
Publication Date: 03/2007
Kim, J.-W., Kang, A., Rhee, J., Kim, H.-I., Kim, Y.-C., Kim, D.-G., Chung, C., Han, S.-I., Chun, M.-S., and Sohn, Y.-J.: `Deep near-IR photometry of eight metal-poor globular clusters in the Galactic bulge and halo', (2006), Astronomy and Astrophysics, 459, 499 -- 509
Publication Date: 2006.11
Kang, A., Sohn, Y. J., Kim, H.-I., Rhee, J. H., Kim, J.-W., Hwang, N., Lee, M. G., Kim, Y. -C., and Chun, M. S.: `The evolved asymptotic giant branch stars in the central bar of dwarf irregular galaxy NGC 6822', (2006), Astronomy and Astrophysics, 454,717 -- 727. 2006. 08
Preibisch, T., Kim, Y. -C., Favata, F., Feigelson, E. D., Flaccomio, E., Getman, K., Micela, G., Sciortino, S., Stassun, K., Stelzer, B., and Zinnecker, H.: `The Origin of T Tauri X-ray Emission: New Insights from the Chandra Orion Ultradeep Project' (2005), The Astrophysical Journal Supplement, 160, 401 -- 422.
Robinson, F. J., Demarque, P., Guenther, D. B. Kim, Y. -C., and Chan, K. L.: `Simulating the outer layers of Procyon A: a comparison with the Sun' (2005) Monthly Notices of the Royal Astronomical Society, 362, 1031 -- 1037.
Lee, Y.-W., Joo, S.-J., Han, S.-I., Chung, C., Ree, C. H., Sohn, Y.-J., Kim, Y. -C., Yoon, S.-J., Yi, S. K., and Demarque, P.: `Super Helium-Rich Population and the Origin of Extreme Horizontal-Branch Stars in Globular Clusters' (2005) The Astrophysical Journal Letters, 621, L57 -- L60.
Demarque, P., Woo, J.-H., Kim, Y. -C., and Yi, S. K.: `The Y² Isochrones with an Improved Core Overshoot Treatment' (2004) The Astrophysical Journal Supplement, 155, 667 -- 674.
Robinson, F. J., Demarque, P., Li, L. H., Sofia, S., Kim, Y. -C., Chan, K. L., and Guenther, D. B.: `Three dimensional Simulations of the upper radiation-convection transition layer in subgiant stars' (2004) Mon. Not. R. Astron. Soc., 347, 1208 -- 1216.
Yi, S. K., Demarque, P., and Kim, Y. -C.: `The Y2 Isochrones' (2004) Astrophysics and Space Science, 291, 261 -- 262.
Robinson, F. J., Demarque, P., Li, L. H., Sofia, S., Kim, Y. -C., Chan, K. L., and Guenther, D. B.: `Three-dimensional Convection Simulations of the Outer Layers of the Sun using Realistic Physics' (2003) Mon. Not. R. Astron. Soc., 340, 923 --936.
Yi, S., Kim, Y. -C., and Demarque, P.,: `The Y² Stellar Evolutionary Tracks' (2003) The Astrophysical Journal Supplement, 144, 259 -- 261.
Kim, Y. -C., Demarque, P., Yi, S., and Alexander, D. R.: `The Y² Isochrones for alpha element Enhanced Mixture' (2002) The Astrophysical Journal Supplement, 143, 499 -- 511.
Yi, S., Demarque, P., Kim, Y. -C., Lee, Y.-W., Ree, C. H., Lejeune, T., and Barnes, S.,: `Towards Better Age Estimates for Stellar Populations: The Y² Isochrones for Solar Mixture' (2001) The Astrophysical Journal Supplement, 136, 417 -- 437.
Kim, Y. -C.: `Standard Stellar Models; alpha Centauri A and B' (1999) Journal of the Korean Astronomical Society, 32, 119 -- 126.
Demarque, P., Guenther, D. B., and Kim, Y. -C.,: `The Run of Superadiabaticity in Stellar Convection Zones: II. Effect of Photospheric Convection on Solar p-mode Frequencies' (1999) The Astrophysical Journal, 517, 510 -- 515.
Kim, Y. -C.,: `A Simple Granule Model and its Effect on Spectral Line Asymmetry' (1998) Journal of the Korean Astronomical Society, 31, 77 -- 87.
Lira, P., Kim, Y. -C. et al.,: `Erratum: ``Optical Light Curves of the Type Ia Supernovae SN 1990N and SN 1991T'' [Astron. J 115, 234 (1998)]' (1998) The Astronomical Journal, 116, 1006 -- 1007.
Kim, Y. -C. and Chan, K. L.,: `A Hydrodynamic Simulation of the Highly Superadiabatic Layer of the Sun' (1998) Astrophysical Journal Letters, 496, L121 -- L124.
Lira, P., Kim, Y. -C. et al.,: `Optical Light Curves of the Type Ia Supernovae 1990N & 1991T' (1998), The Astronomical Journal, 115, 234 -- 246.
Yi, S., Demarque, P., and Kim, Y. -C.,: `On the Ultraviolet-bright Phase of Metal-rich Horizontal-Branch Stars' (1997) Astrophysical Journal, 482, 677 -- 684.
Demarque, P., Guenther, D. B., and Kim, Y. -C.,: `The Run of Superadiabaticity in Stellar Convection Zones. I. The Sun' (1997) Astrophysical Journal, 474, 790 -- 797.
Hamuy, M., Kim, Y. -C., et al.,: `BVRI Light Curves for 29 Type Ia Supernovae' (1996) Astronomical Journal, 112, 2408 -- 2437.
Guenther, D. B., Kim, Y. -C., and Demarque, P.,: `Seismology of the Standard Solar Model: Tests of Diffusion and the OPAL and MHD Equations of State' (1996) Astrophysical Journal, 463, 382 -- 390.
Kim, Y. -C., Fox, P. A., Demarque, P., and Sofia, S.,: `Modeling Convection in the Outer Layers of the Sun: A Comparison with Predictions of the Mixing-Length Approximation' (1996) Astrophysical Journal, 461, 499 -- 506.
Kim, Y. -C. and Demarque, P.,: `The Theoretical Calculation of the Rossby Number and the ``Nonlocal'' Convective Overturn Time for Pre-Main-Sequence and Early Post-Main-Sequence Stars' (1996) Astrophysical Journal, 457, 340 -- 347.
Chaboyer, B. and Kim, Y. -C.,: `The OPAL Equation of State and Low-Metallicity Isochrones' (1995) Astrophysical Journal, 454, 767 -- 773.
Kim, Y. -C., Fox, P. A., Sofia, S., and Demarque, P.,: `Modeling of shallow and inefficient convection in the outer layers of the Sun using realistic physics' (1995) The Astrophysical Journal, 442, 422 -- 433
Hamuy, M., Kim, Y. -C., et al.,: `SN 1992K: A twin to the subluminous Type Ia SN 1991bg' (1994) Astronomical Journal, 108, 2226 -- 2232
Leibendgut, B., Kim, Y. -C., et al.,: `SN 1991bg - A type Ia supernova with a difference' (1993) Astronomical Journal, 105, 301 -- 313.
Guenther, D. B., Demarque, P., Pinsonneault, M. H., and Kim, Y. -C.,: `Standard solar model. II - g-modes' (1992) Astrophysical Journal, 392, 328 -- 336.
Guenther, D. B., Demarque, P., Kim, Y. -C., and Pinsonneault, M. H.,: `Standard solar model' (1992) Astrophysical Journal, 387, 372 -- 393.
Kim, Y. -C., Demarque, P., and Guenther, D. B.,: `The effect of the Mihalas, Hummer, and Daeppen equation of state and the molecular opacity on the standard solar model' (1991) Astrophysical Journal, 378, 407 -- 412.

Proceedings

Spada, F., Demarque, P., Kim, Y. -C., Boyajian, T. S., and Brewer, J. M.: `YaPSI: A new database of evolutionary tracks and isochrones'(2018) Rediscovering our Galaxy, Proceedings of the International Astronomical Union , IAU Symposium 334 held at Potsdam, Germany, July 10-14, 2017, 13(S334), 362 -- 363
Beom, M. and Kim, Y. -C.: `Analyzing the binary system using standard stellar models: HIP 104858' (2014) Astronomical Society of the Pacific conference Series, The 10th Pacific Rim Conference on Stellar Astrophysics, held at Sejong University, Seoul, Korea, 2013.5.27-31, Vol 482, 143 -- 146
Bach, K. and Kim, Y. -C.: `Radiative Transfer Schemes for Three Dimensional Hydrodynamical Simulation' (2010) the 3rd Korea-Thailand Joint Workshop on Stellar Astrophysics, held at Chiang Mai, Thailand, 2010.2.1-5
Kim, Y. -C. and Barnes, S.: `The evolution of "the moment of inertia" of stars' (2008) The Art of Modelling Stars in the 21st Century, IAU Symposium 252, held 6-11 April 2008 at Sanya, China, 117 -- 118
Yi, S. K., Kim, Y. -C., Demarque, P., Lee, Y. W., Han, S.-I. and Kim, D. G.: `The Y² Isochrones getting an extra dimension' (2008) The Art of Modelling Stars in the 21st Century, IAU Symposium 252, held 6-11 April 2008 at Sanya, China, 413 -- 416
Jung, Y. K. and Kim, Y.-C.,: `Stellar Astrophysics and Isochrones: A review and the YY Isochrones' (2008), The first Thailand-Korea Joint Workshop on Stellar Astrophysics, held 6-10 Nov. 2006 at Chiang Mai, Thailand, 41 -- 48.
Bach, K., Kim, Y.-C., and Demarque, P.,: `Evolutionary Status of 85 Peg Binary System' (2008), The first Thailand-Korea Joint Workshop on Stellar Astrophysics, held 6-10 Nov. 2006 at Chiang Mai, Thailand, 105 -- 110.
Jung, Y. K., Kim, Y. -C., Robinson, F. J., Demarque, P., and Chan, K. L.: `Surface Convection in the Sun and a Population II Star' (2007) 7th Pacific Rim Conference on Stellar Astrophysics, ASP Conference, Vol. 362, held 1-5 Nov. 2005 at Sejong University, Seoul, Korea, 306 --309
Joo, S.-J., Lee, Y.-W., Yoon, S.-J., Han, S.-I., Chung, C., Ree, C. H., Kim, Y.-C., Sohn, Y.-J., and Yi, S. K.: `Super-Helium Stars in Globular Clusters: the Origin of Extreme Horizontal Branch' (2006), Baltic Astronomy, 15, 33 -- 39.
Robinson, F. J., Demarque, P., and Kim, Y. -C.,: `A radiation-Hydrodynamical Simulations of the Envelope of Procyon A' (2004) Helio- and Asteroseismology: Towards a Golden Future, SOHO 14 - GONG 2004 Meeting, ESA SP-559, pp. 602 -- 605
Robinson, F. J., Demarque, P., Sofia, S., Li, L. H., Kim, Y. -C., Chan, K. L., and Guenther, D. B.,: `Simulations of convection in the outer layers of subgiant stars' (2004) Helio- and Asteroseismology: Towards a Golden Future, SOHO 14 - GONG 2004 Meeting held July 12-16 2004 at Yale University, New Haven, CT, USA.
Yi, S. K., Demarque, P.,Kim, Y. -C.,: `The Y² Isochrones and Stellar Evolution Tracks'(2002) Extragalactic Globular Cluster Systems, Proceedings of the ESO Workshop held in Garching, Germany, 27-30 August 2002, p. 255.
Robinson, F. J., Demarque, P., Li, L. H., Sofia, S., Kim, Y. -C., and Guenther, D. B.,: `Radiative hydrodynamical simulations of granulation in the Sun at different stages along the evolutionary track' (2003) 3D Stellar Evolution, ASP Conference, Vol. 293 held 22-26 July 2002 at University of California Davis, Livermore, California, USA. eds. S. Turcotte, S. C. Keller, and R. M. Cavallo, pp. 221 -- 228
Yi,S., Demarque,P., Kim,Y.-C.: `The Y² Isochrones'(2003) New Horizons in Globular Cluster Astronomy, ASP Conference Proceedings, Vol. 296, held 24-28 June 2002 at Dipartimento di Astronomia Universita' di Padova, Padova, Italy. Edited by Giampaolo Piotto, Georges Meylan, S. George Djorgovski and Marco Riello. ISBN: 1-58381-143-5, 2003, p.240 -- 243
Robinson, F. J., Li, L. H., Demarque, P., Sofia, S., Kim, Y. -C., and Guenther, D. B.,: `Effects of domain size on surface simulations of the Sun' (2003) Modelling of Stellar Atmospheres, IAU Symp 210, eds. N. Piskunov, W.W. Weiss, and D.F. Gray June 17-21, 2002, Uppsala, Sweden, ISBN: 1-58381-160-5, p. C3 -- C6
Yi, S. K., Demarque, P., Kim, Y.-C., Lee, Y.-W., Ree, C. H., Lejeune, T.: `The Y² Isochrones'(2002) Observed HR Diagrams and Stellar Evolution, ASP Conference Proceedings, Vol. 274. held 18-22 June 2001 at Observatorio Astronomico da Universidade de Coimbra, Portugal Edited by Thibault Lejeune and Joao Fernandes. ISBN: 1-58381-116-8. San Francisco: Astronomical Society of the Pacific, 2002., p.45 -- 49
Demarque, P., Yi, S., and Kim, Y. -C.,: `Update on Globular Cluster Ages' (2002) New quests in stellar astrophysics: The link between stars ad cosmology, March 26-30, 2001, Puerto Vallarta, Mexico, pp. 111 -- 118
Demarque, P., Yi, S., and Kim, Y. -C.,: `Towards Better Age Estimates for Stellar Populations: The YY Isohrone' (2001) Extragalactic Star Clusters, IAU Symposium 207, March 12-16, 2001, Pucon, Chile, pp. 711 -- 712
Robinson, F. J., Demarque, P., Sofia, S., Chan, K. L., Kim, Y. -C., and Guenther, D. B.: `Radiative hydrodynamics in the highly super-adiabatic layer of stellar evolution models' (2001) in Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and Astero-seismology at the Dawn of the Millennium , ESA SP-464, pp. 443 -- 446.
Demarque, P., Li, L. H., Robinson, F. J., Sofia, S., Kim, Y. -C., Chan, K. L., and Guenther, D. B.: `The effect of turbulent pressure on the p-mode frequencies in stellar models' (2001) in Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and Astero-seismology at the Dawn of the Millennium , ESA SP-464, pp. 423 -- 426.
Demarque, P., Guenther, D. B., and Kim, Y.-C.,: `Testing models of the solar highly superadiabatic layer with seismology' (1998) Structure and Dynamics of the Interior of the Sun and Sun-like Stars, SOHO 6/GONG 98 Workshop, June 1-4, 1998, Boston, Massachusetts, pp. 699 -- 703.
Chan, K. L. and Kim, Y. -C.,: `Exploratory simulation of solar granules: How Sharp is the Solar Radiation/Convection Transition?' (1998) International Astronomical Union. Symposium no. 185. New Eyes to See Inside the Sun and Stars, edited by Franz-Ludwig Deubner, Joergen Christensen-Dalsgaard, and Don Kurtz. Kyoto, Japan, 18-22 August, 1997, p. 217.
Demarque, P., Guenther, D. B. and Kim, Y.-C.,: `The internal structure and age of the sun from seismology' (1998) 1997 Pacific Rim Conference on Stellar Astrophysics, ASP Conference Series; Vol. 138; 1998; ed. Kwing Lam Chan; K. S. Cheng; and H. P. Singh (1998), p.79
Kim, Y. -C. and Chan, K. L.,: `Hydrodynamic simulation of the radiation-convection transition region' (1997) SCORe'96 : Solar Convection and Oscillations and their Relationship, Proceedings of a workshop, held in Aarhus, Denmark, May 27 - 31, 1996, Eds.: F.P. Pijpers, J. Christensen-Dalsgaard, and C.S. Rosenthal, Kluwer Academic Publishers (Astrophysics and Space Science Library Vol. 225), pp. 131 -- 134
Kim, Y. -C., Fox, P. A., Demarque, P., and Sofia, S.,: `Modeling Convection in the Outer Layers of the Sun: Constancy of the Mixing Length Ratio near the Top of Convection Zone' (1995) presented at the 32nd Liege International Astrophysical Colloquium ``Stellar Evolution: What Should Be Done''.
Demarque, P., Guenther, D. B., and Kim, Y. -C.,: `Main Sequence and H-Shell Burning: Convection and Seismology' (1995) presented at the 32nd Liege International Astrophysical Colloquium ``Stellar Evolution: What Should Be Done'', p. 279.
Kim, Y. -C. and Fox, P. A.,: `Stellar Photospheric Convection' (1992) Cool stars, stellar systems, and the sun, Proceedings of the 7th Cambridge Workshop, ASP Conference Series (ASP: San Francisco), 26, pp. 172 -- 174.

Other Publications

Bach, K. and Kim, Y. -C.: `Radiative Transfer Schemes for Hydrodynamical Stellar Surfaces' (2009) Korean Space Science Society, held at Jeju, 2009.10.29-30
Bach, K.,Jung, Y. K., Kim, Y. -C., Robinson, F. J., Demarque, P., and Chan, K. L.: `Dynamical Characteristics of Surface Convection in the Sun and a Population II Star' (2006) American Astronomical Society Meeting 208, #6.02
Demarque,P., Robinson,F.J., Sofia,S., Kim,Y.-C., Chan,K.L., Guenther,D.B.: `Convection cells in a red giant atmosphere from 3D numerical simulations' (2003) American Astronomical Society Meeting 202, #32.08
Demarque, P., Robinson, F. J., Chan, K. L., Kim, Y. -C., Guenther, D. B., Sofia, S.: `The Scale of Granulation in Red Giant Atmospheres' (2003) American Astronomical Society Meeting, 201, #115.06
Kim, Y. -C., Yi, S., and Demarque, P.,: `Yonsei-Yale Isochrones; the status report' (2001) American Astronomical Society 198, #43.01
Demarque, P., Guenther, D. B., and Kim, Y. -C.,: `Testing the Structure of the Solar Superadiabatic Layer with Seismology' (1996) American Astronomical Society Meeting, 189, #18.01
Kim, Y. -C.,: `Stellar Photospheric Convection and its Effect on Spectral Line Asymmetry' (1993) Bulletin of the American Astronomical Society Meeting, 183 #59.01, 24, 1175
Kim, Y. -C.,: `STELLAR PHOTOSPHERIC CONVECTION AND ITS EFFECT ON SPECTRAL LINE ASYMMETRY' (1993) Thesis (PH.D.)--YALE UNIVERSITY, 1993.
Hamuy, M., Kim, Y. -C., and Baldwin, J.,: `Supernova 1992T in Anonymous Galaxy' (1992) IAU Circ., 5500, 2 (1992). Edited by Marsden, B. G.
Maza, J., Hamuy, M., Antezana, R., Wells, L., and Kim, Y. -C.,: `Supernova 1992U in ESO 74-G4' (1992) IAU Circ., 5499, 1 (1992). Edited by Marsden, B. G.
Hamuy, M., Maza, J., Wischnjewsky, M., Antezana, R., Wells, L., Kim, Y. -C., and Baldwin, J.,: `Variable Object near NGC 4192' (1992) IAU Circ., 5498, 2 (1992). Edited by Marsden, B. G.
Maza, J., Hamuy, M., Wischnjewsky, M., Antezana, R., Wells, L., and Kim, Y. -C.,: `Supernova 1992T in Anonymous Galaxy' (1992) IAU Circ., 5496, 1 (1992). Edited by Marsden, B. G.
Maza, J., Hamuy, M., Antezana, R., Wells, L., Bailyn, C., Kim, Y.-C., and Yanny, B.,: `Supernova 1992P in IC 3690' (1992) IAU Circ., 5491, 1 (1992). Edited by Marsden, B. G.
Kim, Y. -C., Demarque, P. and Guenther, D. B.: `The Effects of the MHD Equation of State and Molecular Opacities on the Scillation' (1990) The Bulletin of the American Astronomical Society, 22, 1207

KIM, YONG -CHEOL