期刊
PLANETARY AND SPACE SCIENCE
卷 87, 期 -, 页码 85-95出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pss.2013.08.009
关键词
Comet; Churyumov-Gerasimenko; Rosetta; Bow shock; Hybrid simulation; Pick-up time
资金
- German Bundesministerium fur Wirtschaft und Technologie
- Deutsches Zentrum fur Luft-und Raumfahrt [50, QP 1001]
- NASA ESS
- NASA ESTO-CT
- NSF KDI
- DoD MURI
The Rosetta spacecraft will arrive at comet 67P/Churyumov-Gerasimenko in 2014 and will escort the comet along its journey around the Sun. The predicted outgassing rate of the comet and the solar wind properties close to its perihelion at 1.24 AU lead to the expectation that a cometary bow shock will form during the escort phase. Since the forecasts of the subsolar stand off distances differ, this study revisits selected models and presents hybrid simulations of the comet solar wind interaction region performed with the A.I.K.E.F. code. It is shown that small variations of the solar wind parameters will shift the bow shock position considerably. In addition, a model is presented that reproduces the bow shock distances observed in the hybrid simulations. (C) 2013 Elsevier Ltd. All rights reserved.
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