EarthRef.org Reference Database (ERR) -- Skoug et al. 1999

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

Detailed Reference Information

Skoug et al. 1999

Skoug, R.M., Bame, S.J., Feldman, W.C., Gosling, J.T., McComas, D.J., Steinberg, J.T., Tokar, R.L., Riley, P., Burlaga, L.F., Ness, N.F. and Smith, C.W. (1999). A prolonged He⁺ enhancement within a coronal mass ejection in the solar wind. Geophysical Research Letters 26: doi: 10.1029/1998GL900207. issn: 0094-8276.

A coronal mass ejection and magnetic cloud containing an unusually large enhancement of He+ was observed in the solar wind by the plasma and magnetic field instruments on the Advanced Composition Explorer (ACE) spacecraft on May 2--4, 1998. The He+/He++ ratio during this event exceeded 0.5% for a period of more than 24 hours, and reached values as high as 100%. The high He+/He++ ratio indicates the presence of prominence material, and in fact a disappearing filament and prominence were observed at the Sun in association with this event. The prolonged observation of He+ indicates that prominence material extended through much of this CME, the first such observation in a CME in the solar wind. ¿ 1999 American Geophysical Union

BACKGROUND DATA FILES

	Abstract

Keywords
Solar Physics, Astrophysics, and Astronomy, Coronal mass ejections, Interplanetary Physics, Ejecta, driver gases, and magnetic clouds, Interplanetary Physics, Solar wind plasma

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

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