All Stories

  1. A model for stealth coronal mass ejections

    Article • Journal of Geophysical Research Space Physics, November 2016, American Geophysical Union (AGU)

    Dr George H Fisher

  2. Deriving Potential Coronal Magnetic Fields from Vector Magnetograms

    Article • Solar Physics, June 2016, Springer Science + Business Media

    Dr George H Fisher

  3. PHOTOSPHERIC ELECTRIC FIELDS AND ENERGY FLUXES IN THE ERUPTIVE ACTIVE REGION NOAA 11158

    Article • The Astrophysical Journal, September 2015, Institute of Physics Publishing

    Dr George H Fisher

  4. The Coronal Global Evolutionary Model: Using HMI Vector Magnetogram and Doppler Data to Model the Buildup of Free Magnetic Energy in the Solar Corona

    Article • Space Weather, June 2015, American Geophysical Union (AGU)

    Dr George H Fisher, Dr Keiji Hayashi

  5. WHY IS THE GREAT SOLAR ACTIVE REGION 12192 FLARE-RICH BUT CME-POOR?

    Article • The Astrophysical Journal Letters, May 2015, Institute of Physics Publishing

    Dr George H Fisher

  6. SIGN SINGULARITY AND FLARES IN SOLAR ACTIVE REGION NOAA 11158

    Article • The Astrophysical Journal, February 2015, Institute of Physics Publishing

    Dr George H Fisher

  7. A COMPREHENSIVE METHOD OF ESTIMATING ELECTRIC FIELDS FROM VECTOR MAGNETIC FIELD AND DOPPLER MEASUREMENTS

    Article • The Astrophysical Journal, October 2014, Institute of Physics Publishing

    Dr George H Fisher

  8. Emergence of Anchored Flux Tubes Through the Convection Zone

    Article • March 2013, Wiley

    Dr George H Fisher

  9. On the Mechanical Energy Available to Drive Solar Flares

    Article • March 2013, Wiley

    Dr George H Fisher

  10. A MAGNETIC CALIBRATION OF PHOTOSPHERIC DOPPLER VELOCITIES

    Article • The Astrophysical Journal, February 2013, Institute of Physics Publishing

    Dr George H Fisher

  11. Global Forces in Eruptive Solar Flares: The Lorentz Force Acting on the Solar Atmosphere and the Solar Interior

    Article • Solar Physics, December 2011, Springer Science + Business Media

    Dr George H Fisher

  12. Momentum Distribution in Solar Flare Processes

    Article • Solar Physics, October 2011, Springer Science + Business Media

    Dr George H Fisher

  13. Radiative Cooling in MHD Models of the Quiet Sun Convection Zone and Corona

    Article • Solar Physics, July 2011, Springer Science + Business Media

    Dr George H Fisher

  14. Can We Determine Electric Fields and Poynting Fluxes from Vector Magnetograms and Doppler Measurements?

    Article • Solar Physics, July 2011, Springer Science + Business Media

    Dr George H Fisher

  15. Sun to 1 AU propagation and evolution of a slow streamer-blowout coronal mass ejection

    Article • Journal of Geophysical Research Atmospheres, July 2010, American Geophysical Union (AGU)

    Dr George H Fisher

  16. ESTIMATING ELECTRIC FIELDS FROM VECTOR MAGNETOGRAM SEQUENCES

    Article • The Astrophysical Journal, April 2010, Institute of Physics Publishing

    Dr George H Fisher

  17. Sequential Coronal Mass Ejections from AR8038 in May 1997

    Article • Solar Physics, April 2010, Springer Science + Business Media

    Dr George H Fisher

  18. WHAT IS THE RELATIONSHIP BETWEEN PHOTOSPHERIC FLOW FIELDS AND SOLAR FLARES?

    Article • The Astrophysical Journal, October 2009, Institute of Physics Publishing

    Dr George H Fisher

  19. Forward Modeling of Active Region Coronal Emissions. II. Implications for Coronal Heating

    Article • The Astrophysical Journal, December 2008, Institute of Physics Publishing

    Dr George H Fisher

  20. Forward Modeling of Active Region Coronal Emissions. I. Methods and Testing

    Article • The Astrophysical Journal Supplement Series, December 2008, Institute of Physics Publishing

    Dr George H Fisher

  21. Tests and Comparisons of Velocity‐Inversion Techniques

    Article • The Astrophysical Journal, December 2007, Institute of Physics Publishing

    Dr George H Fisher

  22. Free Magnetic Energy Changes in AR 8210

    Article • Proceedings of the International Astronomical Union, March 2006, Cambridge University Press

    Dr George H Fisher

  23. Convective Dynamos and the Minimum X‐Ray Flux in Main‐Sequence Stars

    Article • The Astrophysical Journal, September 2005, Institute of Physics Publishing

    Dr George H Fisher

  24. Observational Consequences of a Magnetic Flux Rope Emerging into the Corona

    Article • The Astrophysical Journal, December 2004, Institute of Physics Publishing

    Dr George H Fisher

  25. The photospheric boundary of Sun-to-Earth coupled models

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, October 2004, Elsevier

    Dr George H Fisher

  26. Observational evidence for velocity convergence toward magnetic neutral lines as a factor in CME initiation

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, October 2004, Elsevier

    Dr George H Fisher

  27. The Dynamic Evolution of Twisted Magnetic Flux Tubes in a Three‐dimensional Convecting Flow. II. Turbulent Pumping and the Cohesion of Ω‐Loops

    Article • The Astrophysical Journal, September 2004, Institute of Physics Publishing

    Dr George H Fisher

  28. ILCT: Recovering Photospheric Velocities from Magnetograms by Combining the Induction Equation with Local Correlation Tracking

    Article • The Astrophysical Journal, August 2004, Institute of Physics Publishing

    Dr George H Fisher

  29. The Relationship Between X‐Ray Radiance and Magnetic Flux

    Article • The Astrophysical Journal, December 2003, Institute of Physics Publishing

    Dr George H Fisher

  30. A Viscoelastic Theory of Turbulent Fluid Permeated with Fibril Magnetic Fields

    Article • The Astrophysical Journal, December 2003, Institute of Physics Publishing

    Dr George H Fisher

  31. Multiwavelength Observations of Flares on AD Leonis

    Article • The Astrophysical Journal, November 2003, Institute of Physics Publishing

    Dr George H Fisher

  32. The Dynamic Evolution of Twisted Magnetic Flux Tubes in a Three‐dimensional Convecting Flow. I. Uniformly Buoyant Horizontal Tubes

    Article • The Astrophysical Journal, January 2003, Institute of Physics Publishing

    Dr George H Fisher

  33. A Coupled Model for the Emergence of Active Region Magnetic Flux into the Solar Corona

    Article • The Astrophysical Journal, January 2003, Institute of Physics Publishing

    Dr George H Fisher

  34. The Effects of Rotation on the Evolution of Rising Omega Loops in a Stratified Model Convection Zone

    Article • The Astrophysical Journal, January 2001, Institute of Physics Publishing

    Dr George H Fisher

  35. The Three‐dimensional Evolution of Rising, Twisted Magnetic Flux Tubes in a Gravitationally Stratified Model Convection Zone

    Article • The Astrophysical Journal, October 2000, Institute of Physics Publishing

    Dr George H Fisher

  36. The Three‐dimensional Evolution of Rising, Twisted Magnetic Flux Tubes in a Gravitationally Stratified Model Convection Zone

    Article • The Astrophysical Journal, September 2000, Institute of Physics Publishing

    Dr George H Fisher

  37. Simultaneous SOHO and Yohkoh Observations of a Small Solar Active Region

    Article • The Astrophysical Journal, July 2000, Institute of Physics Publishing

    Dr George H Fisher

  38. Magnetic flux tubes inside the sun

    Article • Physics of Plasmas, May 2000, American Institute of Physics

    Dr George H Fisher

  39. Multi-mode kink instability as a mechanism for δ-spot formation

    Article • Advances in Space Research, January 2000, Elsevier

    Dr George H Fisher

  40. Article • Solar Physics, January 2000, Springer Science + Business Media

    Dr George H Fisher

  41. Relationship of the Multimode Kink Instability to δ‐Spot Formation

    Article • The Astrophysical Journal, September 1999, Institute of Physics Publishing

    Dr George H Fisher

  42. The Rise of Kink‐unstable Magnetic Flux Tubes and the Origin of δ‐Configuration Sunspots

    Article • The Astrophysical Journal, August 1999, Institute of Physics Publishing

    Dr George H Fisher

  43. The Solar Flare Soft X‐Ray Differential Emission Measure and the Neupert Effect at Different Temperatures

    Article • The Astrophysical Journal, March 1999, Institute of Physics Publishing

    Dr George H Fisher

  44. SUMER Observations of the Quiet‐Sun Transition Region

    Article • The Astrophysical Journal, February 1999, Institute of Physics Publishing

    Dr George H Fisher

  45. Coronal Heating in Active Regions as a Function of Global Magnetic Variables

    Article • The Astrophysical Journal, December 1998, Institute of Physics Publishing

    Dr George H Fisher

  46. Nonlinear Evolution of Kink‐unstable Magnetic Flux Tubes and Solar δ‐Spot Active Regions

    Article • The Astrophysical Journal, November 1998, Institute of Physics Publishing

    Dr George H Fisher

  47. Flux‐Tube Twist Resulting from Helical Turbulence: The Σ‐Effect

    Article • The Astrophysical Journal, November 1998, Institute of Physics Publishing

    Dr George H Fisher

  48. The Rise of Kink-Unstable Magnetic Flux Tubes in the Solar Convection Zone

    Article • The Astrophysical Journal, September 1998, Institute of Physics Publishing

    Dr George H Fisher

  49. The Helical Kink Instability of Isolated, Twisted Magnetic Flux Tubes

    Article • The Astrophysical Journal, October 1996, Institute of Physics Publishing

    Dr George H Fisher

  50. The Evolution and Fragmentation of Rising Magnetic Flux Tubes

    Article • The Astrophysical Journal, June 1996, Institute of Physics Publishing

    Dr George H Fisher

  51. Radiative heating and the buoyant rise of magnetic flux tubes in the solar interior

    Article • Solar Physics, June 1996, Springer Science + Business Media

    Dr George H Fisher

  52. A Test of a New Flare Loop Scaling Law Using YOHKOH SXT and GOES Observations

    Article • The Astrophysical Journal, May 1996, Institute of Physics Publishing

    Dr George H Fisher

  53. The Effects of Convection Zone Turbulence on the Tilt Angles of Magnetic Bipoles

    Article • The Astrophysical Journal, February 1996, Institute of Physics Publishing

    Dr George H Fisher

  54. A Search for Asymmetric Flows in Young Active Regions

    Article • The Astrophysical Journal, January 1996, Institute of Physics Publishing

    Dr George H Fisher

  55. Simultaneous Extreme-Ultraviolet Explorer and Optical Observations of AD Leonis: Evidence for Large Coronal Loops and the Neupert Effect in Stellar Flares

    Article • The Astrophysical Journal, November 1995, Institute of Physics Publishing

    Dr George H Fisher

  56. Comparisons between theory and observation of active region tilts

    Article • The Astrophysical Journal, January 1995, Institute of Physics Publishing

    Dr George H Fisher

  57. Dynamics of emerging active region flux loops

    Article • The Astrophysical Journal, December 1994, Institute of Physics Publishing

    Dr George H Fisher

  58. A coronal mass ejection model for the 1992 July 15 flare on AU Microscopii observed by the extreme ultraviolet explorer

    Article • The Astrophysical Journal, November 1994, Institute of Physics Publishing

    Dr George H Fisher

  59. Solar flare model atmospheres

    Article • The Astrophysical Journal, May 1994, Institute of Physics Publishing

    Dr George H Fisher

  60. The dynamics of magnetic flux rings

    Article • The Astrophysical Journal, July 1993, Institute of Physics Publishing

    Dr George H Fisher

  61. The origin of morphological asymmetries in bipolar active regions

    Article • The Astrophysical Journal, March 1993, Institute of Physics Publishing

    Dr George H Fisher

  62. Starspots: The zebra effect

    Article • Solar Physics, November 1992, Springer Science + Business Media

    Dr George H Fisher

  63. X-ray-heated models of stellar flare atmospheres - Theory and comparison with observations

    Article • The Astrophysical Journal Supplement Series, February 1992, Institute of Physics Publishing

    Dr George H Fisher

  64. The stretching of magnetic flux tubes in the convective overshoot region

    Article • The Astrophysical Journal, June 1991, Institute of Physics Publishing

    Dr George H Fisher

  65. An equation for the evolution of solar and stellar flare loops

    Article • The Astrophysical Journal, July 1990, Institute of Physics Publishing

    Dr George H Fisher

  66. Dynamics of Anchored Flux Tubes in the Convection Zone. I. Details of the Model: Erratum

    Article • The Astrophysical Journal, April 1990, Institute of Physics Publishing

    Dr George H Fisher

  67. Dynamics of flare-driven chromospheric condensations

    Article • The Astrophysical Journal, November 1989, Institute of Physics Publishing

    Dr George H Fisher

  68. Dynamics of anchored flux tubes in the convection zone. I - Details of the model

    Article • The Astrophysical Journal, June 1989, Institute of Physics Publishing

    Dr George H Fisher

  69. Explosive evaporation in solar flares

    Article • The Astrophysical Journal, June 1987, Institute of Physics Publishing

    Dr George H Fisher

  70. Chromospheric downflow velocities as a diagnostic in solar flares

    Article • Solar Physics, January 1987, Springer Science + Business Media

    Dr George H Fisher

  71. Radiation hydrodynamics in solar flares

    Article • January 1986, Springer Science + Business Media

    Dr George H Fisher

  72. Flare loop radiative hydrodynamics. V - Response to thick-target heating. VI - Chromospheric evaporation due to heating by nonthermal electrons. VII - Dynamics of the thick-target heated chromosphere

    Article • The Astrophysical Journal, February 1985, Institute of Physics Publishing

    Dr George H Fisher

  73. Flare Loop Radiative Hydrodynamics - Part Six - Chromospheric Evaporation due to Heating by Nonthermal Electrons

    Article • The Astrophysical Journal, February 1985, Institute of Physics Publishing

    Dr George H Fisher

  74. Flare Loop Radiative Hydrodynamics - Part Seven - Dynamics of the Thick Target Heated Chromosphere

    Article • The Astrophysical Journal, February 1985, Institute of Physics Publishing

    Dr George H Fisher

  75. Chromospheric evaporation velocities in solar flares

    Article • The Astrophysical Journal, June 1984, Institute of Physics Publishing

    Dr George H Fisher

  76. Flare loop radiative hydrodynamics. IV - Dynamic evolution of unstable semiempirical loop models

    Article • The Astrophysical Journal, April 1983, Institute of Physics Publishing

    Dr George H Fisher

  77. Flare loop radiative hydrodynamics. III - Nonlocal radiative transfer effects

    Article • The Astrophysical Journal, February 1983, Institute of Physics Publishing

    Dr George H Fisher

  78. Heat regeneration in Malone‐type liquid engines using a parallel‐plate thermodynamic pile geometry

    Article • Journal of Applied Physics, June 1981, American Institute of Physics

    Dr George H Fisher

  79. The effects of magnetic stretching in the convective overshoot region

    Article • Springer Science + Business Media

    Dr George H Fisher