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

Detailed Reference Information
Hammond et al. 1995
Hammond, C.M., Crawford, G.K., Gosling, J.T., Kojima, H., Phillips, J.L., Matsumoto, H., Balogh, A., Frank, L.A., Kokubun, S. and Yamamoto, T. (1995). Latitudinal structure of a coronal mass ejection inferred from Ulysses and Geotail observations. Geophysical Research Letters 22: doi: 10.1029/95GL01016. issn: 0094-8276.

We present the first observations of a CME by two spacecraft separated substantially in heliographic latitude. Ulysses and Geotail both see similar features in the plasma and magnetic field parameters during an interval in which Geotail is located in the deep magnetosheath (>150 RE) and Ulysses is located in the solar wind at 5 AU, ~20¿ S of Geotail, and ~51¿ W (in the direction of solar rotation) of Geotail. Based on the similarity in plasma and magnetic field parameters and similar inferred ejection times from the Sun for both features we argue that the same CME is observed by both spacecraft. The portion of the CME observed by Ulysses is traveling much faster than the portion observed by Geotail. Thus the CME has significant latitudinal structure since at any given time the high latitude portion of the CME extends much further out in radial distance. Furthermore, this implies that a simple calculation of the arrival time of a CME at the Earth may not be done if the observing spacecraft is located substantially away from the ecliptic plane. ¿ American Geophysical Union 1995

BACKGROUND DATA FILES

Abstract

Keywords
Solar Physics, Astrophysics, and Astronomy, Flares, 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
Click to clear formClick to return to previous pageClick to submit