1 / 40

Space Research Institute Graz Austrian Academy of Sciences

Space Research Institute Graz Austrian Academy of Sciences. Exploring the Planets and Moons in our Solar System. Helmut O. Rucker. CERN, Geneve, June 2006. Space Research Institute Graz Austrian Academy of Sciences. Exploring the Planets and Moons in our Solar System.

elam
Télécharger la présentation

Space Research Institute Graz Austrian Academy of Sciences

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Space Research Institute Graz Austrian Academy of Sciences Exploring the Planets and Moons in our Solar System Helmut O. Rucker CERN, Geneve, June 2006

  2. Space Research Institute Graz Austrian Academy of Sciences Exploring the Planets and Moons in our Solar System • The interplanetary medium, the solar wind and its interaction • with magnetized planets CERN, Geneve, June 2006

  3. Space Research Institute Graz Austrian Academy of Sciences Exploring the Planets and Moons in our Solar System • The interplanetary medium, the solar wind and its interaction • with magnetized planets • Space missions to the outer planets CERN, Geneve, June 2006

  4. Space Research Institute Graz Austrian Academy of Sciences Exploring the Planets and Moons in our Solar System • The interplanetary medium, the solar wind and its interaction • with magnetized planets • Space missions to the outer planets • Specific aspects of magnetospheric physics – radio emission CERN, Geneve, June 2006

  5. Space Research Institute Graz Austrian Academy of Sciences Exploring the Planets and Moons in our Solar System • The interplanetary medium, the solar wind and its interaction • with magnetized planets • Space missions to the outer planets • Specific aspects of magnetospheric physics – radio emission • Volcanoes and icy worlds CERN, Geneve, June 2006

  6. Space Research Institute Graz Austrian Academy of Sciences Exploring the Planets and Moons in our Solar System • The interplanetary medium, the solar wind and its interaction • with magnetized planets • Space missions to the outer planets • Specific aspects of magnetospheric physics – radio emission • Volcanoes and icy worlds • Space Missions to the terrestrial planets CERN, Geneve, June 2006

  7. Space Research Institute Graz Austrian Academy of Sciences The interplanetary medium, the solar wind and its interaction with magnetized planets Helmut O. Rucker „ CERN, Geneve, June 2006

  8. The central star of our solar system – the Sun

  9. Mass loss by the expanding solar atmosphere, i.e. the solar wind: ~ 10 E6 tons per second

  10. Viewgraph: Helmet streamer

  11. The solar wind = expanding atmosphere of the Sun highly conducting plasma, radially propagating (300 km/s < v < 2000 km/s)

  12. The solar wind = expanding atmosphere of the Sun highly conducting plasma, radially propagating (300 km/s < v < 2000 km/s) The interplanetary magnetic field is a solar magnetic field drawn out of the Sun by the highly conducting solar wind plasma. Due to the solar rotation a spiral structure is formed.

  13. Parker spiral:

  14. Solar wind average properties at r ~ 1 AU: Different types of solar wind (sw): Fast sw: 400 < v < 800 km/s, Helium 3 – 4 % Slow sw of minimum type: 250 < v < 400 km/s, Helium < 2 % Slow sw of maximum type: 250 < v < 400 km/s, Helium ~ 4 % Coronal mass ejections (CMEs): 400 < v < 2000 km/s, Helium(++) ~ 30 %

  15. Solar wind average properties at r ~ 1 AU:

  16. Dipole structure

  17. Interaction between the solar wind and planetary magnetic field Solar wind bulk flow = super-sonic flow = super-Alfvenic flow

  18. Interaction between the solar wind and planetary magnetic field Bow shock: Transition of solar wind plasma described by the Rankine Hugoniot equations bulk speed particle density Plasma pressure plasma temperature

  19. magnetopause boundary conditions: 3D schematics of the terrestrial magnetosphere

  20. Magnetic reconnection

  21. Magnetic reconnection

  22. Magnetic reconnection

  23. Courtesy Prange, 2006

  24. Courtesy Prange, 2006

  25. 1st reconnection = start of the cycle Courtesy Prange, 2006

  26. Courtesy Prange, 2006

  27. Courtesy Prange, 2006

  28. transport over the poles Courtesy Prange, 2006

  29. Courtesy Prange, 2006

  30. 2nd reconnection Courtesy Prange, 2006

  31. impulsive acceleration Release of energy ( the stretched configuration contains additional energy to accelerate plasma) Courtesy Prange, 2006

  32. ejection of plasma into the magnetotail Courtesy Prange, 2006

  33. returning of a « magnetic loop » back to the dayside Courtesy Prange, 2006

  34. Courtesy Prange, 2006

  35. Cluster Double Star Themis MMS

  36. PLANETARY AURORAE a fascinating phenomen at and around the magnetis poles of magnetized planets Earth Dynamic Explorer ) UV - 130 nm (Courtesy . L. Frank) Saturn HST-STIS UV - 130 nm (R. Prangé & L Pallier) Jupiter HST-STIS UV - 150 nm (R. Prangé & L Pallier)

  37. PLANETARY AURORAE a fascinating phenomen at and around the magnetis poles of magnetized planets Earth Dynamic Explorer ) UV - 130 nm (Courtesy . L. Frank) Saturn HST-STIS UV - 130 nm (R. Prangé & L Pallier) Jupiter HST-STIS UV - 150 nm (R. Prangé & L Pallier)

  38. Summary:

  39. Prospect for tomorrow: Saturn, seen by Cassini

More Related