Education:
Ph.D., Astronomy, August, 1981
Indiana University, Bloomington, IN
B. A., Physics, June, 1974
University of California, Irvine, CA


Present Positions:

Professor of Physics
Department of Physics
University of Oregon, Eugene, OR
1985-present (assistant-->associate-->full)


Institute Memberships:


Institute of Theoretical Science


Professional Societies:


American Association of Physics Teachers
American Astronomical Society
International Astronomical Union
Sigma Pi Sigma

Publications

Doctoral Dissertation:


"UV and X-ray Spectra of Accreting Degenerate Dwarfs"

Refereed Publications

"Improved Secular Stability Limits for Differentially Rotating Polytropes and White Dwarfs," Durisen, R. H. & Imamura, J. N. 1981, The Astrophysical Journal, 243, 612

"Linear Analysis of an Oscillatory Instability of Radiative Shock Waves," Chevalier, R. A. & Imamura, J. N. 1982, The Astrophysical Journal, 261, 543

"X-ray Spectra and Light Curves of Accreting Magnetic Degenerate Dwarfs," Imamura, J. N. & Durisen, R. H. 1983, The Astrophysical Journal, 268, 291

"Self-Similar Structures of the Interaction Regions of Colliding Winds," Chevalier, R. A. & Imamura, J. N. 1983, The Astrophysical Journal, 270, 554

"Colliding Winds: Interaction Regions with Strong Heat Conduction," Imamura, J. N. & Chevalier, R. A. 1984, The Astrophysical Journal, 280, 313

"A Numerical Study of the Stability of Radiative Shocks," Imamura, J. N., Wolff, M. T., & Durisen, R. H. 1984, The Astrophysical Journal, 276, 667

"Comparison of the X-ray Observations of the AM Herculis Objects to Theory," Imamura, J. N. 1984, The Astrophysical Journal, 285, 223

"Secular Stability Limits of Rotating Polytropic Stars," Imamura, J. N., Friedman, J. L., & Durisen, R. H. 1985, The Astrophysical Journal, 294, 474

"On the Stability Properties of White Dwarf Accretion Shocks," Imamura, J. N. 1985, The Astrophysical Journal, 296, 128

"High-Speed Multicolor Photometry of AN Ursae Majoris," Imamura, J. & Steiman-Cameron, T. Y. 1986, The Astrophysical Journal, 311, 786

"The UV and X-ray Spectra of Accreting White Dwarfs. IV: Effects of a Two-temperature Treatment with Electron Thermal Conduction," Imamura, J. N., Durisen, R. H., Lamb, D. Q., & Weast, G. J. 1987, The Astrophysical Journal, 313, 298

"The X-ray Emission of Gamma Ray Burst Sources," Imamura, J. N. & Epstein, R. I. 1987, The Astrophysical Journal, 313, 711

"A Possible 1.13 Millisecond Periodicity in GX 339-4," Imamura, J. N, Steiman-Cameron, T. Y., & Middleditch, J. 1987, The Astrophysical Journal, 314, L11

"Rapid Optical Flaring in MXB 1735-444 and An Optical Flare in GX 17+2," Imamura, J. N., Steiman-Cameron, T. Y., & Middleditch, J. 1987, The Astrophysical Journal, 320, L41

"Search for Millisecond Optical Pulsars in Globular Clusters," Middleditch, J., Imamura, J. N., & Steiman- Cameron, T. Y. 1988, The Astrophysical Journal, 335, 753

"Millisecond Optical Photometry of the DQ Herculis Objects," Imamura, J. N., Steiman-Cameron, T. Y., & Middleditch, J. 1988, The Astronomical Journal, 96, 1420

"Constraints on the Equation-of-State at High Density Implied by PSR 1957+20," Friedman, J.L., Imamura, J.N., Durisen, R.H., & Parker, L. 1988, Nature, 336, 560

"Limits on an Optical Pulsar in Supernova 1987A," Pennypacker, C., Middleditch, J., Kristian, J., Hamuy, M., Imamura, J., Kunkel, W.E., Morris, T., Muller, R., Perlmutter, S., Rawlings, S.J., Saseen, T., Shelton, I., Steiman-Cameron, T., & Tuohy, I. 1989, The Astrophysical Journal (Letters), 340, L61

"Sub-Millisecond Optical Pulsar in Supernova 1987A," Kristian, J., Pennypacker, C., Middleditch, J., Hamuy, M., Imamura, J., Kunkel, W.E., Morris, T., Muller, R., Perlmutter, S., Rawlings, S.J., Saseen, T., Shelton, I., Steiman-Cameron, T., & Tuohy, I. 1989, Nature, 338, 234

"Millisecond Photometry of H2215-086," Steiman-Cameron, T. Y., Imamura, J. N., & Steiman-Cameron, D. V. 1989, The Astrophysical Journal, 339, 434

"On the Stability Properties of White Dwarf Accretion Shocks: Settling Solutions," Imamura, J. N., & Wolff, M. 1990, The Astrophysical Journal, 355, 216

"A 190 Second Optical Periodicity in the Enigmatic X-ray Source GX 339-4," Steiman-Cameron, T. Y., Imamura, J. N., Middleditch, & Kristian, J. 1990, The Astrophysical Journal, 359, 197

"The Eight Second Optical Quasi-Periodic Oscillations in GX 339-4," Imamura, J. N., Kristian, J., Middleditch, J., & Steiman-Cameron, T. Y. 1990, The Astrophysical Journal, 365 312.

"Noise-Driven Radiative Shocks: A New Model for the Optical Quasi-Periodic Oscillations of the AM Herculis Objects," Wolff, M. T., Wood, M. T., & Imamura, J. N. 1991, The Astrophysical Journal, 375, L53

"A Search for X-ray Eclipses in Centaurus X-4," Whitlock, L. A., Imamura, J. N., & Priedhorsky, W. 1990, Astronomy and Astrophysics, 238, 140

"Dynamic Instabilities in Low Mass Rotating Protostars during Early Disk Formation," Yang, S., Durisen, R. H., Cohl, H., Imamura, J. N., & Toman, J. 1991, Icarus, 91, 14

"The Optical Emission From Oscillating White Dwarf Radiative Shock Waves," Imamura, J. N., Rashed, H., & Wolff, M. T. 1991, The Astrophysical Journal, 378, 665

"High-Speed, Multi-Color Photometry of V834 Centaurus," Middleditch, J., Imamura, J. N., Wolff, M. T., & Steiman- Cameron, T. Y. 1991, The Astrophysical Journal, 382, 315

"Noise-Driven Radiative Shocks II. Further Implications for the Quasi-Periodic Oscillations of the AM Herculis Objects," Wood, K. S., Imamura, J. N., & Wolff, M. T. 1992, The Astrophysical Journal, 398, 593

"Self-Similar Fluctuations, Transient Chaos, and Quasi-Periodic Oscillations in Sco X-1: A Dripping Handrail?" Scargle, J. D., Donoho, D., Crutchfield, J., Steiman-Cameron, T. Y., Young, K., & Imamura, J. N. 1993, The Astrophysical Journal Letters, 411, L91

"The Quasi-Periodic Oscillations of VV Puppis," Imamura, J. N., Middleditch, J., Steiman-Cameron, Scargle, J. D., Whitlock, L. A., Wolff, M. T., & Wood, K. S. 1993, The Astrophysical Journal, 419, 793

"Dripping Handrails and the Quasi-Periodic Oscillations of the AM Herculis Objects," Steiman-Cameron, T. Y., Young, K., Scargle, J. D., Crutchfield, J., Imamura, J. N., Wolff, M. T., & Wood, . S., 1994, The Astrophysical Journal, 435, 775

"Nonaxisymmetric Secular Instabilities of Rotating Polytropes Driven by Star/Disk Coupling," Imamura, J. N., Toman, J., Durisen, R. H., Yang, S., & Pickett, B. 1995, The Astrophysical Journal, 444, 363

"The Stability Properties of Two-Temperature White Dwarf Radiative Shock Waves," Imamura, J. N., Aboasha, A., Wolff, M. T., & Wood, K. S. 1996, The Astrophysical Journal, 458, 327

"Sixteen Second Quasi-Periodic Oscillations in GX 339-4," Steiman-Cameron, T.Y., Imamura, J.N., Middleditch, J., & Scargle, J.D. 1997, The Astrophysical Journal, 487, 396

"Discovery of Quasi-Periodic Oscillations in the AM Herculis Object BL Hydri," Middleditch, J., Imamura, J. N., & Steiman-Cameron, T. Y. 1997, The Astrophysical Journal, 489, 912

"Nonaxisymmetric Instabilities of Rotating Polytropes. I Kelvin-like Modes," Toman, J., Imamura, J.N., Durisen, R. H., & Pickett, B. 1998, The Astrophysical Journal, 498, 370

"High State Observations of the Eclipsing AM Herculis Object, UZ Fornacis", Imamura, J. N. & Steiman-Cameron, T. Y. 1998, The Astrophysical Journal, 501, 830

"V2301 Ophiucus: A Bright Eclipsing AM Herculis Object," Steiman-Cameron, T.Y. & Imamura, J.N. 1999, The Astrophysical Journal, 515, 404

"Optical and X-ray Observations of Bl Hydri," Wolff, M.T., Wood, K.S., Imamura, J. N., Middleditch, J., & Steiman-Cameron, T.Y. 1999, The Astrophysical Journal, 526, 435

"Nonaxisymmetric Instabilities of Rotating Polytropes. II Torques, Bars, and Mode Saturation with Applications to Protostars and Fizzlers," Imamura, J.N., Durisen, R.H., & Pickett, B.K. 2000, The Astrophysical Journal, 528, 946

"Coordinated Optical and X-ray Observations of VV Puppis, V834 Centauri, and EF Eridani", Imamura, J. N., Steiman-Cameron, & Wolff, M.T. 2000, Publications of the Astronomical Society of the Pacific, Vol 112 Issue 767, 18

"All Season Rapid Photometry of SN1987A: A 2.14 Msec Pulsar?" Middleditch, J., Kristian, J.E., Kunkel, W.E., Hill, K.M., Watson, R.D., Lucinio, R., Imamura, J.N., Steiman-Cameron, T.Y., Shearer, A., Butler, R., Redfern, M., & Danks, A.C. 2000, New Astronomy, Vol. 5 #5

"Nonaxisymmetric Dynamic Instabilities of Rotating Protostars. II Adiabatic Models," Pickett, B.K., Durisen, R.H., Link, R., & Imamura, J.N. 2000, Icarus, in preparation

"The Dominance of Dynamic Barlike Instabilities in the Evolution of a Massive Stellar Core Collapse that 'Fizzles'", Imamura, J.N. & Durisen, R.H. 2001, The Astrophysical Journal, 549, 1062

"Rossi X-ray Timing Explorer Observations of V2301 Ophiucus", Wolff, M.T., Steiman-Cameron, T.Y., & Imamura, J.N. 2002, The Astrophysical Journal, submitted

"The Nonlinear Evolution of Massive Stellar Core Collapses that 'Fizzle'", Imamura, J. N., Pickett, B.K., & Durisen, R.H. 2003, The Astrophysical Journal, 587, 000

Conference Proceedings

"Improved Secular Stability Limits for Rotating White Dwarfs," Durisen, R. H., and Imamura, J. N. 1979, in IAU Coll. 53: White Dwarfs and Variable Degenerate Stars, ed. H. van Horn, and V. Weidemann (Rochester: University of Rochester Press), p. 65.

"Effects of Nuclear Burning on X-ray and UV Emission from Accreting Nonmagnetic Degenerate Dwarfs," Weast, G. J., Durisen, R. H., Imamura, J. N., Kylafis, N. D., and Lamb, D. Q. 1979 in IAU Coll. 53: White Dwarfs and Variable Degenerate Stars, Ed. H. M. van Horn, and V. Weidemann (Rochester: University of Rochester Press), p. 140.

"Two-Fluid Calculations with Conduction of X-ray Emission from Accreting Nonmagnetic Degenerate Dwarfs," Imamura, J. N., Durisen, R. H., Lamb, D. Q., and Weast, G. J. 1979, in IAU Coll. 53: White Dwarfs and Variable Degenerate Stars, Ed. H. M. van Horn, and V. Weidemann (Rochester: University of Rochester Press), p. 406.

"Effects of Nuclear Burning on the X-ray and UV Emission from Accreting Degenerate Dwarfs," Weast,. G. J., Durisen, R. H., Imamura, J. N., Kylafis, N. D., and Lamb, D. Q. 1980, IAU Sym. No. 93, Fundamental Problems in the Theory of Stellar Evolution, Eds. Sugimoto, P., Lamb, D. Q., and Schramm, D. N. (Dordrecht: D. Reidel), p. 234.

"On the Secular Stability of Rotating Stars," Imamura, J. N., Friedman, J. L., and Durisen, R. H. 1984, in Birth and Evolution of Neutron Stars: Issues Raised by the Millisecond Pulsar, eds. S. Reynolds and D. Stinebring, (Green Bank: National Radio Astronomy Observatory press), p. 191.

"On the Stability of Degenerate Dwarf Radiative Shocks," Imamura, J. N., Chevalier, R. A., Durisen, R. H., and Wolff, M. T. 1984, in Cataclysmic Variables and Low Mass X-ray Binaries, Eds. J. Patterson and D. Q. Lamb (Dordrecht: Reidel), p. 261.

"High-Speed Photometry of AN Ursae Majoris," Imamura, J. N., Steiman-Cameron, T. Y., and Durisen, R. H. 1985, 9th North American Workshop on Cataclysmic Variables, ed. P. Szkody (Seattle: University of Washington Press), p. 49.

"The Time-Dependent Behavior of White Dwarf Accretion Shocks," Imamura, J. N., Wolff, M. T., and Durisen, R. H. 1985, 9th North American Workshop on Cataclysmic Variables, ed. P. Szkody (Seattle: University of Washington Press), p. 59.

"The Stability of Interstellar Medium Shock Waves," Imamura, J. N. 1986, in Magnetospheric Phenomena in Astrophysics, ed. R. Epstein (New York: American Institute of Physics), p. 243.

"The Stability of Degenerate Dwarf Radiative Shock Waves," Wolff, M., Gardner, J., Imamura, J., and Wood, K. 1990, in Twenty-Third ESLAB Symposium on Active Galactic Nuclei and X-ray Binaries, 000.

"The Stability of Degenerate Dwarf Radiative Shocks: Settling Solutions," Wolff, M., Imamura, J., Wood, K., and Gardner, J. 1990, in Eleventh North American Workshop on Cataclysmic Variables and Low Mass X-ray Binaries, ed. C. Mauche (Cambridge: University of Cambridge Press), p. 335.

"The 8-Second Optical QPO in GX 339-4," Imamura, J., Kristian, J., Middleditch, J., and Steiman-Cameron, T. 1990, in Eleventh North American Workshop on Cataclysmic Variables and Low Mass X-ray Binaries, ed. C. Mauche (Cambridge: University of Cambridge Press), p. 63.

"Shock Oscillations and the Quasi-Periodic Oscillations of the AM Herculis Objects," Imamura, J. N., Wolff, M. T., & Wood, K. S. 1991, in Proc. of the Vina Del Mar Conference on Cataclysmic Variables.

"Dynamics of Accretion in AM Herculis Systems: Models for High Mass White Dwarfs," Wolff, M. T., Wood, K. S., & Imamura, J. N., 1994, in AIP Conf. Proc. 308, Evolution of X-ray Binaries, eds. S. Holt & S. Day (New York:AIP Press), p. 491.

"A Candidate 2.14 Msec Pulsar in SN1987A: A Gravity Wave Pulsar?" Middleditch, J. et al. 1997, in Proc. of Cerro Tololo Inter-American Observatory/European Southern Observatory Workshop, Supernova 1987A: Ten Years After.

"Nonaxisymmetric Instabilities of Protostellar Objects," Imamura, J.N., Pickett, B.K., Durisen, R.H., & Toman, J. 1999, in "Numerical Astrophysics '98," eds. Miyama, Tomisaka, & Hanawa, p. 175.

"Coordinated Optical and X-ray Observations of BL Hydri," Wolff, M.T., Imamura. J.N., Middleditch, J., Wood, K.S., & Steiman-Cameron, T.Y. 1998, in "5th North American Cataclysmic Variable Workshop," 000.

"RXTE Observations of V2301 Ophiucus and BL Hydri," Wolff, M.T., Wood, K.S., Imamura, J.N., & Steiman-Cameron, T.Y. 1999, in "New Astronomy Reviews," eds. P. Charles, A. King, \& D. O'Donoghue, (Elsevier Press), 000.

"Gravitational Torques and Bar Formation in Rotating Protostars," Imamura, J.N., Durisen, R.H., & Pickett, B.P. 1999, in "Star Formation '99," (Dordrecht: Kluwer Acad. Publ.), in press.

"Dynamic Instability of Barlike Modes," Durisen, R.H., Pickett, B.K., Bate, M.R., Imamura, J.N., Brandl, A. & Sterzik, M.F. 2000, to appear in IAU Symposium 200: Star Formation, submitted.

Abstracts

"Effects of Electron Conduction on Accretion by White Dwarf Stars," Imamura, J., and Durisen, R. H. 1977, Bulletin of the American Astronomical Society, 9 #4.

"Effects of Nuclear Burning on X-Ray Emission from Accreting Degenerate Dwarfs," Weast, G. J., Durisen, R., Imamura, J., and Lamb, D. Q. 1979, Bulletin of the American Astronomical Society, 11 #2.

"Improved Secular Stability Limits for Differentially Rotating Polytropes and Degenerate Dwarfs," Imamura, J. N., and Durisen, R. H. 1980, Bulletin of the American Astronomical Society, 12 #2.

"The Stability of Radiative Shock Waves," Imamura, J. N., and Chevalier, R. A. 1981, Bulletin of the American Astronomical Society, 13 #4.

"Stability of Radiative Shocks," Imamura, J. N., Wolff, M. T., and Durisen, R. H. 1982, Bulletin of the American Astronomical Society, 14 #2.

"Self-Similar Solutions for the Interaction Regions of Colliding Winds," Imamura, J. N., and Chevalier, R. A. 1982, Bulletin of the American Astronomical Society, 14 #4.

"Comparison of the X-ray Observations of AM Her Objects to Theory," Imamura, J. N. 1983, Bulletin of the American Astronomical Society, 15 #4.

"Further Results on the Stability of Radiative Shock Waves," Imamura, J. N. 1984, Bulletin of the American Astronomical Society, 16 #2.

"Rapid Variability in GX 339-4," Imamura, J. N., Steiman-Cameron, T.Y., and Middleditch, J. 1987, Bulletin of the American Astronomical Society, 19 #4.

"Effects of the Accretion Geometry on the Stability Properties of White Dwarf Accretion Shocks," Imamura, J. N., Rashed, H., and Wolff, M. T. 1988, Bulletin of the American Astronomical Society, 20 #4.

"4U 0115+63," Henson, G. \& Imamura, J. N. 1988, I.A.U. Circ. 4561.

"Millisecond Photometry of the DQ Herculis Objects," Steiman- Cameron, T., Imamura, J., and Steiman-Cameron, D. 1988, Bulletin of the American Astronomical Society, 20 #4.

"Search for a Millisecond Pulsar in SN1987A," Middleditch, J. et al. 1988, Bulletin of the American Astronomical Society, 20, #4.

"Sub-Millisecond Optical Pulsar in Supernova 1987A," Middleditch et al. 1988, I.A.U. Circ. 4735.

"Stability of White Dwarf Accretion Shocks: Two-Temperature Settling Solutions," Wolff, M., Gardner, J., Imamura, J., and Wood, K. 1990, Bulletin of the American Astronomical Society, 22 #4.

"Driven Radiative Shock Waves: A Model for QPOs?" Wolff, M., Wood, K., and Imamura, J. N. 1990, Bulletin of the American Astronomical Society, 23 #4.

"Near Infrared Pulse Profile of the Crab Pulsar," Middleditch, J. et al. 1990, Bulletin of the American Astronomical Society, 24 #4.

"Dynamical Instabilities in Low-Mass Protostars During Early Disk Formation," Yang, S., Durisen, R. H., Cohl, H., Imamura, J. N., and Toman, J. 1991, Bulletin of the American Astronomical Society, 25 #4.

"Dust Lanes in Elliptical Galaxies and Type Ia SN: Evidence of Recent Star Formation?" Steiman-Cameron, T. Y., Schlegel, E. M., & Imamura, J. N., 1995, Bulletin of the American Astronomical Society, 185, 78.09.

"Coordinated Optical and X-ray Observations of AM Herculis Objects," Steiman-Cameron, T. Y., Scargle, J.D., Middleditch, J., Kemp, J., Wood, K.S., Wolff, M.T., Hertz, P., & Imamura, J. N., 1997, Bulletin of the American Astronomical Society, 187, 35.01.

"V2301 Ophiucus: An Eclipsing AM Herculis System," Wolff, M.T., Imamura, J.N., Wood, K.S., & Steiman-Cameron, T.Y. 2000, in Rossi 2000, submitted.

Telescope Time Allocations
Mount Wilson Observatory, 2.5 m, 19-20 Feb 1985, "High-Speed Photometry of AN UMa and GK Per."

Kitt Peak National Observatory, 1.3 m, 14-16 Apr 1985, "High-speed Photometry of Cataclysmic Variables."

Mount Wilson Observatory, 2.5 m, 14-18 May 1985, "High-speed Photometry of Sco X-1 and Cataclysmic Variables."

Las Campanas Observatory, 1 m, 28 May to 6 June 1985, "High-speed Photometry of Low-Mass X-ray Binaries and Cataclysmic Variables."

Las Campanas Observatory, 1 m, 3-10 July 1986, "High-speed Photometry of GX 339-4 and Sco X-1."

Kitt Peak National Observatory, 1.3 m and 0.9 m, 17-23 Mar 1987, "Multicolor Photometry of Magnetic White Dwarfs."

Cerro Tololo Inter-American Observatory, 1 m, 5-21 Jun 1987, "Millisecond Photometry of Low Mass X-ray Binaries."

Cerro Tololo Inter-American Observatory, 4 m, 21-24 Jan 1988, "A Search for Millisecond Pulsars in the LMC."

Cerro Tololo Inter-American Observatory, 4 m, 24-26 Jul 1989, 1.5 m 31 July - 3 Aug 1989 " Millisecond Photometry of Low Mass X-ray Binaries."

Cerro Tololo Inter-American Observatory, 1.5 m, 19-24 Jan 1990, "Search for Millisecond Optical Pulsars in the LMC."

Cerro Tololo Inter-American Observatory, 1 m, 15-21 Jun 1990, "A Study of the Optical QPOs of the AM Her Objects."

Cerro Tololo Inter-American Observatory, 1 m and 1.5 m, 22-25 Feb 1991, "Simultaneous Multi-Color Photometry of Accreting White Dwarfs."

Cerro Tololo Inter-American Observatory, 1 m, 1-13 July 1991, "A Study of the Rotational History of H2215-086."

Cerro Tololo Inter-American Observatory, 1 m, Feb 1992, "High-Speed Photometry of EF Eri."

Cerro Tololo Inter-American Observatory, July 1993, "High-Speed Photometry of LMXBs."

Cerro Tololo Inter-American Observatory, 1 m, 1-7 Feb 1995, "Multi-Color Photometry of Newly Discovered AM Herculis Objects"

Rossi X-ray Timing Explorer, Cycle 1, and Cerro Tololo Inter-American Observatory, 1-m, 1996, "Simultaneous X-ray and Optical Photometry of AM Herculis Objects"

Rossi X-ray Timing Explorer, Cycle 2, and Cerro Tololo Inter-American Observatory, 1.5-m, 1997, "Simultaneous X-ray and Optical Photometry of AM Herculis Objects"

Rossi X-ray Timing Explorer, Cycle 2, and Cerro Tololo Inter-American Observatory, 1.5-m, 1997, "Simultaneous X-ray and Optical Photometry of DQ Herculis Objects"

Rossi X-ray Timing Explorer, Cycle 3, and Cerro Tololo Inter-American Observatory, 1.5-m, 1997, "Simultaneous X-ray and Optical Photometry of AM Herculis Objects"

Cerro Tololo Inter-American Observatory, 1.5-m, April 1998, "Sub-Millisecond Photometry of Low-Mass X-ray Binaries"

Rossi X-ray Timing Explorer, Cycle 4, and Cerro-Tololo Inter-American Observatory, 1.5-m Sep 1998, "Coordinated Optical and X-ray Photometry of Accreting White Dwarfs."

Rossi X-ray Timing Explorer, Cycle 4, and Cerro-Tololo Inter-American Observatory, 1.5-m, Oct 1999, "Coordinated Optical and X-ray Observations of Eclipsing AM Her Systems."

Rossi X-ray Timing Explorer, Cycle 4, and Cerro Tololo Inter-American Observatory, 1.5-m, 29 May-3 Jun 2000, "Coordinated Optical and X-ray Observations of Eclipseing AM Her Systems.""

Grants, Awards, and Fellowships

Current Grant Support

"Dynamic Instabilities of Rotating Protostellar Systems"
Astrophysics Theory Program
National Aeronautics and Space Administration
1999-2001, $78K(3 years)

"A Search for Optical Pulsations in PSR J0537-0910"
American Astronomical Society
National Aeronautics and Space Administration
1999, $2K

Past Grant Support

"Short Time Scale Variability of the AM Her Objects", Research Corporation, 1986-89 $4,890

"Short Time Scale Variability of the AM Her Objects", American Astronomical Society/National Aeronautics and Space Administration, 1986-87 $2,000

"The Dynamical and Thermal Properties of Astrophysical Fluid Flows", National Science Foundation, 1987-89 $32,000

"The Modeling of White Dwarf Radiative Shock Waves", National Aeronautics and Space Administration, 1989-91 $135,000,
Co-I with Drs. Wood and Wolff of the Naval Research Laboratory

"The Construction of an Ultra-High-Speed Data Acquisition System for the Study of Compact Objects and Planetary Occultations", National Science Foundation, 1990-91 $13,000,
Co-I with Dr. Steiman-Cameron of Ames Research Center

"Timing Studies of Compact X-ray Binaries", National Aeronautics and Space Administration, 1991-1992 $30,000,
Co-I with Drs. Scargle and Steiman-Cameron of Ames Research Center

"Numerical Modeling of Radiative Shocks on Compact Objects", National Aeronautics and Space Administration, $120,000 for 1992-1994,
Co-I with Drs. Wolff & Wood of Naval Research Laboratory, "Observations of the AM Herculis Objects", Rossi X-Ray Timing Explorer, Cycle 1, National Aeronautics and Space Administration, Oct 1996 - Mar 1998, $25,700,
P-I with Co-I's Dr. Scargle and Dr. Steiman-Cameron of Ames Research Center and Dr. Middleditch of the Los Alamos National Laboratory

National Aeronautics and Space Administration, $75,000 for 1994-1996, "Timing Studies of Compact X-ray Binaries",
Co-I with Drs. Scargle & Steiman-Cameron of NASA Ames Research Center

"The Modeling of White Dwarf Radiative Shock Waves", Office of Naval Research, $19,000 for 1995

"Funneled Accretion Flows in Magnetic Binaries", Rossi X-Ray Timing Explorer, Cycle 2, National Aeronautics and Space Administration, 1997 $22,303,
P.I. with Co-I's Dr. Scargle and Dr. Steiman-Cameron of Ames Research Center, Dr. Wolff, Dr. Wood, and Dr. Hertz of the Naval Reserach Laboratory, and Dr. Middleditch of the Los Alamos National Laboratory

"A Survey of the AM Herculis Objects", Rossi X-Ray Timing Explorer, Cycle 2, National Aeronautics and Space Administration, 1997 $25,000,
Co-I with Dr. Scargle and Dr. Steiman-Cameron of Ames Research Center and Dr. Wood (P.I.), Dr. Wolff, and Dr. Hertz of the Naval Research Laboratory, and Dr. Middleditch of Los Alamos National Laboratory

"Eclipsing AM Herculis Objects", Rossi X-Ray Timing Explorer, Cycle 2, National Aeronautics and Space Administration, 1997 $30,877,
Co-I with Dr. Steiman-Cameron (P.I.) of Ames Research Center

"Eclipsing AM Herculis Objects", Rossi X-Ray Timing Explorer, Cycle 3, National Aeronautics and Space Administration, 1998 $5,000,
Co-I with Dr. Steiman-Cameron (P.I.) of Ames Research Center

Awards

"Short Timescale Variability of the AM Her Objects", Dudley Observatory
1988-89 $500

"The Construction of an Ultra-High-Speed Data Acquisition System for the Study of Compact Objects and Planetary Occultations", Fullam Award, Dudley Observatory
1989-90 $10,000

Fellowships

American Society of Engineering Education, Summer Faculty Fellowships, Naval Research Laboratory
1988 $10,000, 1989 $10,000

American Society of Engineering Education, Summer Faculty Fellowships, NASA-Ames Research Center
1993 $10,000, 1995 $10,000

Japan Society for the Promotion of Science, Visting Scholar, Yukawa Institute for Fundamental Physics
1997 593,000 yen/month

Teaching


Courses

Astronomy 121,122,123 (formerly Physics 107,108,109):

Essentials of Astronomy, an introduction to astrophysics for the nonscience major (arithmetic based) (texts: Various). See the following websites comprehensive descriptions of the courses, http://zebu.uoregon.edu/~imamura/astro.121.html, http://zebu.uoregon.edu/~imamura/astro.122.html, http://zebu.uoregon.edu/~imamura/astro.123.html.

Physics 101:
Essentials of Physics, an introduction to mechanics and thermodynamics for the nonscience major (arithmetic based) (text: Hewitt, Conceptual Physics).

Physics 207,208,209:
Introduction to Astrophysics, an introduction to astrophysics for science majors (algebra based) (text: none).

Physics 202,203:
Introduction to Physics, an introduction to heat and waves (Physics 202, text: Giancoli, Physics) and electricity and magnetism (203, text: Hecht, Physics) (algebra based).

Physics 411:
Analytical Mechanics (calculus based course for upper division physics majors) (text: Chow, Classical Mechanics). Variational Principles as applied to classical mechanics. Course website, http://zebu.uoregon.edu/~imamura/p411.html.

Physics 412,413,422:
Electricity and Magnetism (calculus based course for upper division physics majors) (texts: Barger & Olsson, Classical Electricity & Magnetism: A Contempary Perspective; Griffiths, Electrodynamics). Electrostatics, Magnetostatics, Maxwell's Equations, electromagnetic waves, electromagnetic radiation, and special relativity and electrodynamics. Course URL's: Physics 412: http://zebu.uoregon.edu/~imamura/p412.html, Physics 413: http://zebu.uoregon.edu/~imamura/p413.html, and Physics 422: http://zebu.uoregon.edu/~imamura/p422.html.

Physics 410/510:
Introduction to Astrophysics (calculus based). Experimental courses geared for senior undergraduates or beginning graduate students. Sequences taught included a general 1 year introduction to astrophysics (text: Bowers & Deeming, Astrophysics I & II) and 2 1-quarter specialty courses on high energy astrophysics (text: Raine, King, & Lasota: Accretion Processes in Astrophysics), and stellar structure and evolution (text: Kippenhahn & Weigert, Stellar Structure & Evolution).

Individual Instruction

Doctoral Students

Hussain Rashed,"A Study of White Dwarf Radiative Accretion Shocks," Spring 1992, Assistant Professor, Mu'tah University, Jordan.

Abdosalam Aboasha, "A Study of the Stability Properties of Radiative Shock Waves," Spring 1994, whereabouts unknown.

Joseph Toman, "Dynamical and Secular Stability of Rotating Polytropes," Spring 1996, Senior Programer, EDX Engineering, 757 Greg Way, Eugene, OR 97404.

Neil Parker, "Aperiodic and Quasi-Periodic Variability in Scorpius X-1," Spring 1998, Programer, MicroNiche, Inc. 1635 Oak Street, Eugene, OR 47401.

Served as member on > 20 Ph.D. committees for students in the physics, mathematics, and geology departments.

Undergraduate/Graduate Student Reading/Research Courses

D. Sprayberry, Eclipse Timing of V2301 Oph

C. Cole, Time Series Analysis (Inverse Techniques)

J. Fornier, reading Course on Cosmology

T. Williams, Nonlinear Dynamical Modeling of Accretion Disks

D. Darves-Bornoz, 2 quarter sequence of Astronomy Laboratory Exercises

J. Reel, Thermodynamics of Rotating Protostars

J. Sakurai, Stability of Massive Accretion Disks

H.F. Chen, Stability of Self-Gravitating Toroids

A. Stange & M. Cogorno, Stability of Accreting White Dwarfs

Technical Advisor: International High School Senior Theses

D. Szakalski, International H.S., Churchill H.S., Magnetars, 1998-1999

K. Mauricio, International H.S., Sheldon H.S., Fizzlers, 1998-1999

P. Clancey, International H.S., South Eugene H.S., Wormholes and Time Travel, 1999-2000

Service


Departmental Service

Committees: awards and admissions committee, curriculum committee, examination committee, Pine Mountain Observatory committee, graduate student recruitment committee

Other: Astrophysics search committees (for G. Bothun and J. Schombert), affirmative action officer, undeclared majors advising, colloquium chairman

Institute Service

Director, Institute of Theoretical Science (ITS); seminar chairman (ITS); affirmative action officer (ITS); Steering committee, Computational Science Institute

University Service

Committees: Academic Requirements Committee, Scholastic Review Committee, Committee-on-Committees, Undergraduate Council, College of Arts & Sciences Committee-on-Courses

Other: College of Arts & Sciences undeclared major advisor, selection panel for Target of Opportunity Laurel Awards, selection panel for Diversity Building Scholarships, participated in search for Director of Multicultural Affairs office, undeclared majors advising (IntroDucktion), Early Response course selection

Community-Wide Service

Reviewer

Journals: The Astrophysical Journal, The Astrophysical Journal Letters, Astrophysics & Space Science, The Publications of the Astronomical Society of the Pacific, Publications of the Astronomical Society of Australia, Physical Review Letters, Physical Review, Journal of Mathematical Physics, American Journal of Physics

Funding Agencies: National Aeronautics and Space Administration (Compton Gamma Ray Observatory, Rossi X-ray Timing Explorer, Advanced X-ray Astronomy Facility), National Science Foundation, , .

spoke and assisted at various area primary and middle schools, and for the Eugene Astronomical Society.