Articles | Volume 43, issue 2
https://doi.org/10.5194/angeo-43-417-2025
https://doi.org/10.5194/angeo-43-417-2025
ANGEO Communicates
 | 
15 Jul 2025
ANGEO Communicates |  | 15 Jul 2025

Ion beam instability model for Mercury's upstream waves

Yasuhito Narita, Daniel Schmid, and Uwe Motschmann

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Cited articles

Baumjohann, W., Matsuoka, A., Narita, Y., Magnes, W., Heyner, D., Glassmeier, K.-H., Nakamura, R., Fischer, D., Plaschke, F., Volwerk, M., Zhang, T. L., Auster, H.-U., Richter, I., Balogh, A., Carr, C. M., Dougherty, M., Horbury, T. S., Tsunakawa, H., Matsushima, M., Shinohara, M., Shibuya, H., Nakagawa, T., Hoshino, M., Tanaka, Y., Anderson, B. J., Russell, C. T., Motschmann, U., Takahashi, F., and Fujimoto, A.: The BepiColombo–Mio magnetometer en route to Mercury, Space Sci. Rev., 216, 125, https://doi.org/10.1007/s11214-020-00754-y, 2020. a
Benkhoff, J., Murakami, G., Baumjohann, W., Besse, S., Bunce, E., Casale, M., Cremosese, G., Glassmeier, K.-H., Hayakawa, H., Heyner, D., Hiesinger, H., Huovelin, J., Hussmann, H., Iafolla, V., Iess, L., Kasaba, Y., Kobayashi, M., Milillo, A., Mitrofanov, I. G., Montagnon, E., Novara, M., Orsini, S., Quemerais E., Reininghaus, U., Saito, Y., Santoli, F., Stramaccioni, D., Sutherland, O., Thomas, N., Yoshikawa, I., and Zender, J.: BepiColombo – Mission Overview and Science Goals, Space Sci. Rev., 217, 90, https://doi.org/10.1007/s11214-021-00861-4, 2021. a
Delva, M., Mazelle, C., Bertucci, C., Volwerk, M., Vörös, Z., and Zhang, T. L.: Proton cyclotron wave generation mechanisms upstream of Venus, J. Geophys. Res.-Space Phys., 116, A02318, https://doi.org/10.1029/2010ja015826, 2011. a
Delva, M., Mazelle, C., and César, B.: Upstream ion cyclotron waves at Venus and Mars, Space Sci. Rev., 162, 5–24, https://doi.org/10.1007/s11214-011-9828-2, 2011. a
Eastwood, J. P., Balogh, A., Lucek, E. A., Mazelle, C., and Dandouras, I.: On the existence of Alfvén waves in the terrestrial foreshock, Ann. Geophys., 21, 1457–1465, https://doi.org/10.5194/angeo-21-1457-2003, 2003. a
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Short summary
It is often the case that only magnetic field data are available for in situ planetary studies using spacecraft. Either plasma data are not available or the data resolution is limited. Nevertheless, the theory of plasma instability tells us how to interpret the magnetic field data (wave frequency) in terms of flow speed and beam velocity, generating the instability. We invent an analysis tool for Mercury's upstream waves as an example.
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