Определение оптимальных параметров токовых систем магнитосферы меркурия по данным КА MESSENGER

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Abstract

Мы используем параболоидную модель магнитосферы Меркурия и данные магнитометра KA MESSENGER, полученные в апреле 2011 г. для определения оптимальных параметров токовых систем магнитосферы Меркурия, в том смысле, что они дают наименьшую невязку (меньше 10 нТл) между предсказаниями модели и измерениями. Полученные модельные данные сравниваются с экспериментальными данными и моделью магнитосферного магнитного поля Меркурия KT17.

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About the authors

А. С. Лаврухин

Научно-исследовательский институт ядерной физики им. Д.В. Скобельцына, Московский государственный университет им. М.В. Ломоносова

Author for correspondence.
Email: lavrukhin@physics.msu.ru
Russian Federation, Москва

И. И. Алексеев

Научно-исследовательский институт ядерной физики им. Д.В. Скобельцына, Московский государственный университет им. М.В. Ломоносова

Email: lavrukhin@physics.msu.ru
Russian Federation, Москва

Д. В. Невский

Научно-исследовательский институт ядерной физики им. Д.В. Скобельцына, Московский государственный университет им. М.В. Ломоносова; Московский государственный университет им. М.В. Ломоносова, Физический факультет

Email: lavrukhin@physics.msu.ru
Russian Federation, Москва; Москва

References

  1. Alexeev I.I., Belenkaya E.S., Bobrovnikov S.Y., Kalegaev V.V. Modelling of the electromagnetic field in the interplanetary space and in the Earth's magnetosphere // Space Sci. Rev. 2003. V. 107. P. 7–26.
  2. Alexeev I.I., Belenkaya E.S., Bobrovnikov S.Y., Slavin J.A., Sarantos M. Paraboloid model of Mercury's magnetosphere // J. Geophys. Res.: Space Physics. 2008. V. 113. № A12. P. 1-18.
  3. Alexeev I.I., Belenkaya E.S., Slavin J.A., Korth H., Anderson B.J., Baker D.N., Boardsen S.A., Johnson C.L., Purucker M.E., Sarantos M., Solomon S.C. Mercury’s magnetospheric magnetic field after the first two MESSENGER flybys // Icarus. 2010. V. 209. № 1. P. 23–39.
  4. Anderson B.J., Acuna M.H., Lohr D.A., Scheifele J., Raval A., Korth H., Slavin J.A. The Magnetometer Instrument on MESSENGER // The Messenger Mission to Mercury / Eds: Domingue D.L., Russell C.T. NY: Springer, 2007. 623 p.
  5. Anderson B.J., Johnson C.L., Korth H. A magnetic disturbance index for Mercury's magnetic field derived from MESSENGER magnetometer data // Geochem., Geophys., Geosyst. 2013. V. 14. № 9. P. 3875–3886.
  6. Anderson B.J., Johnson C.L., Korth H., Slavin J.A., Winslow R.M., Phillips R.J., McNutt R.L., Solomon S.C. Steady-state field-aligned currents at Mercury // Geophys. Res. Lett. 2014. V. 41. № 21. P. 7444–7452.
  7. Johnson C.L., Purucker M.E., Korth H., Anderson B.J., Winslow R.M., Al Asad M.M., Slavin J.A., Alexeev I.I., Phillips R.J., Zuber M.T., Solomon S.C. MESSENGER observations of Mercury's magnetic field structure // J. Geophys. Res.: Planets. 2012. V. 117. № E12. P.
  8. Johnson C.L., Philpott L.C., Anderson B.J., Korth H., Hauck S.A., Heyner D., Phillips R.J., Winslow R.M., Solomon S.C. MESSENGER observations of induced magnetic fields in Mercury's core // Geophys. Res. Lett. 2016. V. 43. № 6. P. 2436–2444.
  9. Korth H., Tsyganenko N.A., Johnson C.L., Philpott L.C., Anderson B.J., Al Asad M.M., Solomon S.C., McNutt R.L. Modular model for Mercury's magnetospheric magnetic field confined within the average observed magnetopause // J. Geophys. Res.: Space Physics. 2015. V. 120. № 6. P. 4503–4518.
  10. Korth H., Johnson C.L., Philpott L., Tsyganenko N.A., Anderson B.J. A dynamic model of Mercury's magnetospheric magnetic field // Geophys. Res. Lett. 2017. V. 44. № 20. P. 10147–10154.
  11. Parunakian D., Dyadechkin S., Alexeev I., Belenkaya E., Khodachenko M., Kallio E., Alho M. Simulation of Mercury's magnetosheath with a combined hybrid-paraboloid model // J. Geophys. Res.: Space Physics. 2017. V. 122. № 8. P. 8310–8326.
  12. Philpott L.C., Johnson C.L., Anderson B.J., Winslow R.M. The shape of Mercury's magnetopause: The picture from MESSENGER magnetometer observations and future prospects for BepiColombo // J. Geophys. Res.: Space Physics. 2020. V. 125. № 5. P.
  13. Shue J.-H., Chao J.K., Fu H.C., Russell C.T., Song P., Khurana K.K., Singer H.J. A new functional form to study the solar wind control of the magnetopause size and shape // J. Geophys. Res.: Space Physics. 1997. V. 102. № A5. P. 9497–9511.
  14. Sitnik I.M., Alexeev I.I., Selugin O.V. The final version of the FUMILIM minimization package // Computer Phys. Commun. 2020. V. 251. P. 1.
  15. Sitnik I.M., Alexeev I.I., Nevsky D.V. Debugging the FUMILIM minimization package // Computer Phys. Commun. 2024. V. 294. P. 1–2.
  16. Slavin J.A., Acuña M.H., Anderson B.J., Baker D.N., Benna M., Boardsen S.A., Gloeckler G., Gold R.E., Ho G.C., Korth H. and 8 co-authors. MESSENGER observations of magnetic reconnection in Mercury’s magnetosphere // Science. 2009. V. 324. № 5927. P. 606–610.
  17. Slavin J.A., Middleton H.R., Raines J.M., Jia X., Zhong J., Sun W.-J., Livi S., Imber S.M., Poh G.-K., Akhavan-Tafti M., and 5 co-authors. MESSENGER observations of disappearing dayside magnetosphere events at Mercury // J. Geophys. Res.: Space Physics. 2019. V. 124. № 8. P. 6613–6635.
  18. Tsyganenko N.A. Data-based modelling of the Earth's dynamic magnetosphere: a review // Ann. Geophys. 2013. V. 31. P. 1745–1772.
  19. Winslow R.M., Anderson B.J., Johnson C.L., Slavin J.A., Korth H., Purucker M.E., Baker D.N., Solomon S.C. Mercury's magnetopause and bow shock from MESSENGER Magnetometer observations // J. Geophys. Res.: Space Physics. 2013. V. 118. № 5. P. 2213–2227.

Supplementary files

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2. Fig. 1. Diagram illustrating the main parameters of the paraboloid model of Mercury's magnetosphere in the solar-magnetospheric coordinate system MSM. The paraboloid of revolution with the parabolic coordinate describes the surface of the bow shock, the paraboloid of revolution with the parabolic coordinate describes the surface of the magnetopause with the distance to the subsolar point .

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3. Fig. 2. Distribution for the first five orbits under consideration.

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4. Fig. 3. Calculated parameters of the paraboloid model of Mercury's magnetosphere from the 28th to the 44th orbits of the MESSENGER spacecraft. The abscissa axis shows the orbit number, and the ordinate axis shows the distance to the subsolar point, the distance to the magnetopause tail, the displacement of the tail current sheet relative to the magnetic equatorial plane, the magnitude of the magnetic field modulus at the leading edge of the tail current sheet, the polar cap boundary, and the residual.

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5. Fig. 4. Comparison of the experimentally measured (black), calculated using the paraboloid model (red) and the KT17 model (blue) magnetic field for the 43rd orbit of the MESSENGER spacecraft. Top row – x-component of the magnetic field (left), y-component (right); bottom row – z-component (left), magnetic field modulus (right).

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6. Fig. 5. Comparison of the experimentally measured (black), calculated using the paraboloid model (red) and the KT17 model (blue) magnetic field for the 37th orbit of the MESSENGER spacecraft. Top row – x-component of the magnetic field (left), y-component (right); bottom row – z-component (left), magnetic field modulus (right).

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7. Fig. 6. Comparison of the experimentally measured (black), calculated using the paraboloid model (red) and the KT17 model (blue) magnetic field for the 30th orbit of the MESSENGER spacecraft. Top row – x-component of the magnetic field (left), y-component (right); bottom row – z-component (left), magnetic field modulus (right).

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