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Zhang TL, Delva M, Baumjohann W, et al. Little or no solar wind enters Venus' atmosphere at solar minimum. Nature. 2007;450(7170):654-6doi: 10.1038/nature06026.
Zhang, T. L., Delva, M., Baumjohann, W., Auster, H. U., Carr, C., Russell, C. T., Barabash, S., Balikhin, M., Kudela, K., Berghofer, G., Biernat, H. K., Lammer, H., Lichtenegger, H., Magnes, W., Nakamura, R., Schwingenschuh, K., Volwerk, M., Vörös, Z., Zambelli, W., Fornacon, K. H., Glassmeier, K. H., Richter, I., Balogh, A., Schwarzl, H., Pope, S. A., Shi, J. K., Wang, C., Motschmann, U., & Lebreton, J. P. (2007). Little or no solar wind enters Venus' atmosphere at solar minimum. Nature, 450(7170), 654-6. https://doi.org/10.1038/nature06026
Zhang, T L, et al. "Little or no solar wind enters Venus' atmosphere at solar minimum." Nature vol. 450,7170 (2007): 654-6. doi: https://doi.org/10.1038/nature06026
Zhang TL, Delva M, Baumjohann W, Auster HU, Carr C, Russell CT, Barabash S, Balikhin M, Kudela K, Berghofer G, Biernat HK, Lammer H, Lichtenegger H, Magnes W, Nakamura R, Schwingenschuh K, Volwerk M, Vörös Z, Zambelli W, Fornacon KH, Glassmeier KH, Richter I, Balogh A, Schwarzl H, Pope SA, Shi JK, Wang C, Motschmann U, Lebreton JP. Little or no solar wind enters Venus' atmosphere at solar minimum. Nature. 2007 Nov 29;450(7170):654-6. doi: 10.1038/nature06026. PMID: 18046399.
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Nature. 2007 Nov 29;450(7170):654-6. doi: 10.1038/nature06026.

Little or no solar wind enters Venus' atmosphere at solar minimum.

Nature

T L Zhang, M Delva, W Baumjohann, H-U Auster, C Carr, C T Russell, S Barabash, M Balikhin, K Kudela, G Berghofer, H K Biernat, H Lammer, H Lichtenegger, W Magnes, R Nakamura, K Schwingenschuh, M Volwerk, Z Vörös, W Zambelli, K-H Fornacon, K-H Glassmeier, I Richter, A Balogh, H Schwarzl, S A Pope, J K Shi, C Wang, U Motschmann, J-P Lebreton

Affiliations

  1. Space Research Institute, Austrian Academy of Sciences, A-8042 Graz, Austria. [email protected]

PMID: 18046399 DOI: 10.1038/nature06026

Abstract

Venus has no significant internal magnetic field, which allows the solar wind to interact directly with its atmosphere. 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 the atmosphere and contribute to the evolution of the atmosphere. Here we report magnetic field measurements from the Venus Express spacecraft in the plasma environment surrounding Venus. The bow shock under low solar activity conditions seems to be in the position that would be expected from a complete deflection by a magnetized ionosphere. Therefore little solar wind enters the Venus ionosphere even at solar minimum.

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