For his imaginative and stimulating contributions in which plasma and magntohydrodynamical physics have been applied to astronomy.

For pioneering experimental work on the detection of high energy solar radiation and particles, for his many discoveries in the field of high energy solar and heliospheric physics and for his generous and untiring leadership of, and support for, research programs and projects in this field.

For his work on the thermodynamics and stability of coronal magnetic fields and for his outstanding public service to the solar research community.

For his unique insights and substantial scientific achievements in understanding the dynamics of the solar convection zone and the mechanism of the Sun's magnetic dynamo and for his leadership and support of solar physics research programs.

For his many outstanding contributions to the field of solar radio astronomy and for his service to the solar community in the U.S. and abroad.

For his fundamental contributions to many aspect of solar and heliospheric physics, in particular his studies of magnetic reconnection and particle acceleration in solar flares, the initiation of coronal mass ejections, nanoflare coronal heating, and the variability of the solar irradiance.

For his continuing outstanding contributions to our understanding of the solar magnetic field, coronal holes, and coronal mass ejections.

For her seminal contributions to the discovery of the solar wind and her extensive and ongoing contributions to solar-heliospheric physics.

For insightful and pioneering work on the structure of magnetic flux tubes and sunspots and on their interaction with the flow of energy in the solar convection zone.

In recognition of his pioneering work on the composition and transport of Solar Energetic Particles, and for the key insights that firmly established the modern paradigm for SEP production.

For his pioneering work on dynamics and radiation in solar flares and on the origins and implications of magnetic helicity in active regions, as well as his role as a leader and mentor.

For his invention and application of innovative helioseismic methods and the resulting ground-breaking discoveries within the solar interior, including internal sound-speed and rotation profiles, meridional circulation, wave perturbations in sunspots, and large scale convection properties.

For his pioneering work in solar spectroscopy, in particular for his important insights into the interpretation and analysis of solar spectral observations, and his leadership as US principal investigator of the Yohkoh Bragg Crystal Spectrometer and Hinode Extreme Ultraviolet Imaging Spectrometer instruments.

For his significant contributions to the theory of magnetic reconnection, for his development of important new models of the physics of solar flares and coronal mass ejections, and for his achievements mentoring students and junior scientists in the solar physics community.

For his contributions to the theory of the solar dynamo, to understanding the dynamics of buoyant convection-zone magnetic flux tubes, to modeling the structure and dynamics of solar surface magnetic fields, and to the education and training of young solar physicists.

For her many seminal contributions to our understanding of the internal structure and dynamics of the Sun and stars.