Little or no solar wind enters Venus’ atmosphere at solar minimum

@article{Zhang2007LittleON,
  title={Little or no solar wind enters Venus’ atmosphere at solar minimum},
  author={Tinglong Zhang and Magda Delva and Wolfgang Baumjohann and H-U. Auster and Christopher Carr and Christopher T. Russell and S. Barabash and Michael A. Balikhin and K. Kudela and G. Berghofer and Helfried K. Biernat and Helmut Lammer and Herbert I. M. Lichtenegger and Werner Magnes and Rumi Nakamura and Konrad Schwingenschuh and Martin Volwerk and Zolt{\'a}n V{\"o}r{\"o}s and W. Zambelli and K. H. Fornacon and Karl‐Heinz Glassmeier and Ingo Richter and Andr{\'e} Balogh and H. J. Schwarzl and Simon A. Pope and Junru Shi and Chaoying Wang and Uwe Motschmann and J-P. Lebreton},
  journal={Nature},
  year={2007},
  volume={450},
  pages={654-656}
}
Venus has no significant internal magnetic field, which allows the solar wind to interact directly with its atmosphere2,3. A field is induced in this interaction, which partially shields the atmosphere, but we have no knowledge of how effective that shield is at solar minimum. (Our current knowledge of the solar wind interaction with Venus is derived from measurements at solar maximum.) The bow shock is close to the planet, meaning that it is possible that some solar wind could be absorbed by… 

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