| タイトル | First results from the Giotto magnetometer experiment during the P/Grigg-Skjellerup encounter |
| 著者（英） | Neubauer, F. M.; Glassmeier, K.-H.; Musmann, G.; Burlaga, L. F.; Mariani, F.; Pohl, M.; Marschall, H.; Acuna, M. H.; Wallis, M. K.; Ness, N. F. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1993-02-01 |
| 言語 | eng |
| 内容記述 | The Giotto magnetic field experiment has provided the first magnetic field data on the interaction between the solar wind and a low gas production comet, P/Grigg-Skjellerup. Waves produced by ion pick-up instabilities have been observed throughout the interaction region with particularly simple waveforms at large distances and a rich phenomenology. A bow shock has been observed outbound only, whereas inbound a change in the character of the wave fields occurred without a jump in the magnetic field vector. The inbound and outbound crossings of the bow wave and shock at 19,900 km and 25,400 km from the nucleus, respectively, imply a neutral gas production rate of (6.7 +/- 1.6) x 10 exp 27/sec. A magnetic field cavity of the comet was not crossed. The pile-up region of 2500 km width along the trajectory showed a magnetic field peak of 88.7 nT. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 94A11777 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/311831 |
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