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Browsing College of Sciences and Mathematics by Author "Perez, JD"

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Dynamics of ring current ions as obtained from IMAGE HENA and MENA ENA images 

Perez, JD; Zhang, XX; Brandt, PCS; Mitchell, DG; Jahn, JM; Pollock, CJ (2020-06-18)
Ion distributions from three storms in the year 2000 have been obtained from HENA and MENA ENA images at 27-39 keV and 5-12 keV, respectively. The observed motion of the ring current is compared with calculations of expected ...

Outflow from the ionosphere in the vicinity of the cusp 

Valek, PW; Perez, JD; Jahn, JM; Pollock, CJ; Wuest, MP; Friedel, RHW; Moore, TE; Peterson, WK (2020-06-26)
Low-energy ion outflows from the ionosphere are known to be an important source of plasma for the magnetosphere. The objective of this study is to describe the spatial relationships between low-energy ionospheric outflows ...

Overlap of the plasmasphere and ring current: Relation to subauroral ionospheric heating 

Gurgiolo, C.; Sandel, BR; Perez, JD; Mitchell, DG; Pollock, CJ; Larsen, BA (2020-06-18)
The overlap of the ring current with the outer plasmasphere is thought to play a major role in storm-time related increases in the subauroral ambient topside electron temperature. Instabilities generated within the overlap ...

Trapped and precipitating protons in the inner magnetosphere as seen by IMAGE 

Perez, JD; Zhang, XX; Brandt, PC; Mitchell, DG; Jahn, JM; Pollock, CJ; Mende, SB (2020-06-18)
[1] Images from the IMAGE satellite of precipitating protons (SU12/FUV) and trapped protons at 8.5 (MENA) and 33 keV (HENA) are compared during three periods: ( 1) 12 August 2000 from 1000 UT to 1145 UT just after the peak ...