EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information
Gosling et al. 1980
Gosling, J.T., Asbridge, J.R., Bame, S.J., Feldman, W.C., Paschmann, G. and Sckopke, N. (1980). Solar wind ions accelerated to 40 keV by shock wave disturbances. Journal of Geophysical Research 85: doi: 10.1029/JA085iA02p00744. issn: 0148-0227.

Observations in the solar wind with the LASL/MPI fast plasma experiment on ISEE 1 and 2 reveal the common presence of ions with energies extending from ~100 eV up to at least 40 keV in a broad region, typically ~107 km wide, following interplanetary shocks. Peak differential fluxes up to ~5¿103 (cm2 s sr keV)-1 at 28 keV are observed either at the shock or within the first ~1.5 hours following shock passage. In the solar wind frame the distribution function f(&ngr;) of these ions is roughly isotropic, peaks near zero velocity, and above ~5 keV can adequately be characterized as power law in energy with a spectral index of ~2.7. The effective 'temperature' of these ions generally exceeds 108 ¿K. These suprathermal interplanetary ions are almost certainly solar wind ions which have been accelerated by some mechanism associated with the shock wave disturbance. Present evidence leads the authors to favor stochastic particle acceleration involving electrostatic and/or electromagnetic turbulence in the postshock flow.

BACKGROUND DATA FILES

Abstract

Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/
Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org
Click to clear formClick to return to previous pageClick to submit