 |
| Detailed Reference Information |
|---|
|
Grünwaldt, H., Neugebauer, M., Hilchenbach, M., Bochsler, P., Hovestadt, D., Bürgi, A., Ipavich, F.M., Reiche, K.-U., Axford, W.I., Balsiger, H., Galvin, A.B., Geiss, J., Gliem, F., Gloeckler, G., Hsieh, K.C., Kallenbach, R., Klecker, B., Livi, S., Lee, M.A., Managadze, G.G., Marsch, E., Möbius, E., Scholer, M., Verigin, M.I., Wilken, B. and Wurz, P. (1997). Venus tail ray observation near Earth. Geophysical Research Letters 24: doi: 10.1029/97GL01159. issn: 0094-8276. |
|
|
In June, 1996, Venus passed through a very close inferior conjunction with the Sun. At that time the CTOF detector of the CELIAS mass spectrometer experiment on the SOHO spacecraft near Earth's L1 Lagrangian point was measuring heavy ions in the solar wind ~4.5¿107 km downstream of Venus. Close to the time predicted by simple geometric arguments for passage of SOHO through the Venus wake, CTOF made three encounters with unusual fluxes of O+ and C+ ions. Their energy distributions resembled those of tail rays originating in the Venus ionosphere or ionopause region rather than of ions produced in the corona of neutral atoms that surrounds the planet. The C+ abundance was ≈10% of O+. The observed O+ speed was very close to the simultaneous solar wind speed and the O+ temperature was a cool 5600 K/amu. The flux densities for the three events were (2.4-4.4)¿103 cm2 s-1.¿ 1997 American Geophysical Union |
|
|
|
| BACKGROUND DATA FILES |
|
 |
Abstract |
|
 |
|
|
|
Keywords
Planetology, Comets and Small Bodies, Interactions with solar wind plasma and fields, Planetology, Solid Surface Planets, Interactions with particles and fields, Planetology, Solid Surface Planets, Composition, Planetology, Solid Surface Planets, Ionospheres |
|
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 |
|
|
|