Imaging a geomagnetic storm with energetic neutral atoms

Details Imaging a geomagnetic storm with energetic neutral atoms Imaging a geomagnetic storm with energetic neutral atoms

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jastp..62..911p&link_type=abstract

Journal of Atmospheric and Solar-Terrestrial Physics, Volume 62, Issue 10, p. 911-917.

Physics

1

Scientific paper

The ring current during a geomagnetic storm on May 2, 1986 has been modeled using a bounce averaged kinetic equations for the phase space density of hydrogen ions, considering charge exchange and Coulomb losses along the drift path. The resulting equatorial pitch angle distribution is used to generate data simulating the medium and high energy neutral atom imagers to be flown on IMAGE. A method for deconvolving these images is described and applied to the simulated data. The results show that, when there are sufficient counts, the deconvolved distribution contains the main features of the original source and that the energy spectrum at a specific time as well as the total energy of the ring current as a function of time can be extracted from the energetic neutral atom images.

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