John Fix, Ph.D. Part-time Faculty, Physics & Astronomy Contact 301 Sparkman DriveHuntsville, AL 35899 Campus Map Biography Curriculum Vitae Education Ph.D., Astrophysics Indiana University, 1969 A.M., Astrophysics Indiana University, 1967 B.S., Physics, Purdue University 1963 Research Funding Solar Irradiance Monitoring Network NASA, 9/11/96 - 5/31/00, $24,000 John D. Fix, PI. ISO Observations of Variable Circumstellar Shells NASA, 4/1/96 - 8/15/99, $18,000 John D. Fix, PI. A Study of IRAS LRS Observations of Variable Circumstellar Shells - NAG 5-2668 NASA, 8/15/94 - 8/14/96, $34,000 John D. Fix, PI. The Structure of Circumstellar Shells - NAG 5-1174 NASA, 8/1/89 - 7/31/91, $50,647 John D. Fix, PI. Studies of OH/IR Stars - AST 88-20426 NSF, 7/15/89 - 12/31/91, $75,000 John D. Fix, PI. Investigation of the Visible and Ultraviolet Zodiacal Light with Dynamics Explorer - NAGW-1730 NASA, 5/1/89 - 10/30/90, $24,959 John D. Fix, PI. Investigation of the Diffuse Ultraviolet Background with Dynamics Explorer - NAG5-805 NASA, 7/15/86 - 1/14/88, $16,303 John D. Fix, PI. A Multidisciplinary Study of Cosmic Dust - NAGW-871 NASA, 1/1/86 - 6/30/89, $300,000 John D. Fix, PI. Co-I's Goertz, Gurnett, Kleiber, Neff. Investigation of the Diffuse Ultraviolet Background with Dynamics Explorer - NAG5-449 NASA, 7/15/84 - 1/14/86, $26,165 John D. Fix, PI. OH Observations and the Structure of Long Period Variable Circumstellar Mass Flows - AST 79-25076 NSF, 2/15/80 - 9/30/82, $24,400 John D. Fix, PI. Recent Publications Shalim, P., Murthy, Jayant, and Fix, John D. Modelling the Diffuse UV Radiation Observed by Dynamics Explorer-1 Mon. Not. R. Astron. Soc., 408, 53-56, 2010 R.L. Mutel and J.D. Fix Comment on 'Detection of Small Comets with a Ground-Based Telescope' by Frank and Sigwarth J. Geophys. Res., 108, 2003 David E. Dunn, Lawrence A. Molnar, and John D. Fix More Microwave Observations of Saturn: Modeling the Ring With a Monte Carlo Radiative Transfer Code Icarus, 160, 132-160, 2002 R.L. Mutel, K.G. Gayley, and J.D. Fix Reply to Comments by Frank and Sigwarth J. Geophys. Res., 106, 24863-24868, 2001 R.L. Mutel and J.D. Fix An Optical Search for Small Comets J. Geophys. Res., 105, 24907-24916, 2000. Stacy Palen and John D. Fix Models of OH Maser Variations in U Her Astrophys. J., 531, 391-400, 2000. Philip J. Zell and John D. Fix The Spatial Distribution of Circularly Polarized 1612 MHz OH Emission from VX Sgr Astron. J., 112, 252-257, 1996. John D. Fix and Mark G. Mulhern Observations of the Acceleration Regions of OH/IR Stars Astrophys. J., 430, 824-828, 1994. Alan J. Collison and John D. Fix 1612 MHz OH Maser Emission from Axisymmetric Circumstellar Envelopes: Miras Astrophys. J., 390, 191-212, 1992. Alan J. Collison and John D. Fix Axisymmetric Models of Circumstellar Dust Shells Astrophys. J., 368, 545-557, 1991. Philip J. Zell and John D. Fix Circular Polarization in the 1612 MHz OH Maser Emission from OH/IR Stars Astrophys. J., 369, 506-514, 1991. Philip J. Zell and John D. Fix The Discrete Nature of Circumstellar OH Maser Emission Astron. J., 99, 314-322, 1990.