Wide Field-of-View Soft X-Ray Imaging for Solar Wind-Magnetosphere Interactions

Soft X-ray imagers can be used to study the mesoscale and macroscale density structures that occur whenever and wherever the solar wind encounters neutral atoms at comets, the Moon, and both magnetized and unmagnetized planets. Charge exchange between high charge state solar wind ions and exospheric...

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Bibliographic Details
Published in:Journal of geophysical research. Space physics 2016-04, Vol.121 (4), p.3353-3361
Main Authors: Walsh, B. M., Collier, M. R., Kuntz, K. D., Porter, F. S., Sibeck, D. G., Snowden, S. L., Carter, J. A., Collado-Vega, Y., Connor, H. K., Cravens, T. E., Read, A. M., Sembay, S., Thomas, N. E.
Format: Article
Language:English
Subjects:
Charge
Charge exchange
Comets
Cusps
Density
Earth magnetosphere
Emission
Field of view
Imaging
Instrumentation And Photography
Magnetosheath
Magnetosphere
Mesoscale phenomena
Moon
Neutral atoms
Photons
Planets
Reflectors
Simulation
Soft x rays
Solar Physics
Solar wind
Solar wind ions
X ray imagery
X-rays
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Summary:Soft X-ray imagers can be used to study the mesoscale and macroscale density structures that occur whenever and wherever the solar wind encounters neutral atoms at comets, the Moon, and both magnetized and unmagnetized planets. Charge exchange between high charge state solar wind ions and exospheric neutrals results in the isotropic emission of soft X-ray photons with energies from 0.1 to 2.0 keV. At Earth, this process occurs primarily within the magnetosheath and cusps. Through providing a global view, wide field-of-view imaging can determine the significance of the various proposed solar wind-magnetosphere interaction mechanisms by evaluating their global extent and occurrence patterns. A summary of wide field-of-view (several to tens of degrees) soft X-ray imaging is provided including slumped micropore microchannel reflectors, simulated images, and recent flight results.
ISSN:2169-9380
2169-9402
DOI:10.1002/2016JA022348