FAST observations in the downward auroral current region: Energetic upgoing electron beams, parallel potential drops, and ion heating

Geophysical Research Letters

Volumn 25, Issue 12, 1998, Pages 2017-2020

  Carlson, C W ^a   McFadden, J P ^a   Ergun, R E ^a   Temerin, M ^a   Peria, W ^a   Mozer, F S ^a   Klumpar, D M ^b   Shelley, E G ^b   Peterson, W K ^b   Moebius, E ^c   Elphic, R ^d   Strangeway, R ^e   Cattell, C ^f   Pfaff, R ^g  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b LOCKHEED MARTIN   (United States)

^c UNIVERSITY OF NEW HAMPSHIRE   (United States)

^d LOS ALAMOS NATIONAL LABORATORY   (United States)

^e UNIVERSITY OF CALIFORNIA   (United States)

^f UNIVERSITY OF MINNESOTA   (United States)

^g NASA GODDARD SPACE FLIGHT CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRIC FIELDS; ELECTRON BEAMS; IONOSPHERE; PLASMAS; SATELLITE OBSERVATORIES;

DOWNWARD AURORAL CURRENT REGION; FAST AURORAL SNAPSHOT (FAST) SATELLITE MISSION;

ATMOSPHERIC ELECTRICITY;

EID: 0032097413     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/98GL00851     Document Type: Article

References (19)

1. Andre, M., et al., Ion energization mechanisms at 1700 km in the auroral region, J. Geophys. Res., in press, 1998.
2. Bennett, E. L., M. Temerin, and F. S. Mozer, The distribution of auroral electrostatic shocks below 8000-km altitude, J. Geophys. Res., 88, 7107, 1983.
3. Boehm, M. H., et al., Observations of an upward-directed electron beam with the perpendicular temperature of the cold ionosphere, Geophys. Res. Lett., 22, 2103, 1995.
4. Burch, J. L., P. H. Reiff, and M. Sugiura, Upward electron beams measured by DE-1: a primary source of dayside region-1 Birkeland currents, Geophys., Res. Lett., 10, 753, 1983.
5. Carison, C. W., et al., The FAST mission, Geophys. Res. Lett., in press, 1998.
6. Ergun, R. E., et al., FAST satellite observations of electric field structures in the auroral zone, Ceophys. Res. Lett., in press, 1998a.
7. Ergun, R. E., et al., FAST satellite observations of large amplitude solitary waves, Geophys. Res. Lett., in press, 1998b.
8. Evans, D. S., Precipitation electron fluxes formed by a magnetic-field-aligned potential difference, J. Geophys. Res, 79, 2852, 1974.
9. Gomey, D., J., Y. T. Chiu, and D. R. Croley, Jr., Trapping of ion conics by downward parallel electric fields, J. Geophys. Res., 90, 4205, 1985.
10. Ijirna, T., and T. A. Poternra, Large-scale characteristics of field-aligned currents associated with substorms, J. Geophys. Res., 83, 599, 1978.
11. Klumpar, D. M., and W. J. Heikkila, Electrons in the ionospheric source cone: evidence for runaway electrons as carriers of downward Birkeland currents, Geophys. Res. Lett., 9, 873, 1982.
12. Klumpar, D. M., Statistical distributions of the auroral electron albedo in the magnetosphere, in Auroral Plasma Dynamics, Geophsy. Monogr. Ser., Vol. 80, edited by Robert L. Lysak, p. 163, AGU, Washington, DC, 1993.
13. Marklund, G., L. Blomberg, C.-G. Falthammar, and P.-A. Lindqvist, On intense diverging electric fields associated with black aurora, Geophys. Res. Lett., 21, 1859, 1994.
14. McFadden, J. P., et al., Spatial structure and gradients of ion beams observed by FAST, Geophys. Res. Lett., in press, 1998.
15. Moebius, E., et al., Species dependent energies in upward directed ion beams over auroral arcs as observed with FAST TEAMS, Geophys. Res. Lett., in press, 1998.
16. Mozer, F. S., et al., Observations of paired electrostatic shocks in the polar magnetosphere, Phys. Rev. Lett., 38, 292, 1977.
17. Redsun, M. S., M. Temerin, F. S. Mozer, M. H. Boehm, Classification of auroral electrostatic shocks by their ion and electron associations, J. Geophys. Res., 90, 9615, 1985.
18. Shelley, E. G., R. D. Sharp, and R. G. Johnson, Satellite observations of an ionospheric acceleration mechanism, Geophys. Res. Lett., 3, 654, 1976.
19. Temerin, M., M. H. Boehm, and F. Mozer, Paired electrostatic shocks, Geophys. Res. Lett., 8, 799, 1981.