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10/25/07LXO Meeting - GSFC1 Solar Wind Charge Exchange X-ray Simulations Ina Robertson Thomas E. Cravens University of Kansas Ina Robertson Thomas E. Cravens.

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Presentation on theme: "10/25/07LXO Meeting - GSFC1 Solar Wind Charge Exchange X-ray Simulations Ina Robertson Thomas E. Cravens University of Kansas Ina Robertson Thomas E. Cravens."— Presentation transcript:

1 10/25/07LXO Meeting - GSFC1 Solar Wind Charge Exchange X-ray Simulations Ina Robertson Thomas E. Cravens University of Kansas Ina Robertson Thomas E. Cravens University of Kansas

2 10/25/07LXO Meeting - GSFC2 Outline The Charge Exchange Model Contributions to the soft X-ray efficiency factor  Interstellar neutral hydrogen Interstellar neutral helium Geocoronal neutral hydrogen The Charge Exchange Model Contributions to the soft X-ray efficiency factor  Interstellar neutral hydrogen Interstellar neutral helium Geocoronal neutral hydrogen

3 10/25/07LXO Meeting - GSFC3 The Charge Exchange Model

4 10/25/07LXO Meeting - GSFC4 Equations:

5 10/25/07LXO Meeting - GSFC5 Solar Wind composition

6 10/25/07LXO Meeting - GSFC6 Fast or Slow?

7 10/25/07LXO Meeting - GSFC7

8 10/25/07LXO Meeting - GSFC8 Interstellar Neutral Hydrogen n H =0.15e -5/r

9 10/25/07LXO Meeting - GSFC9 Interstellar Neutral Helium

10 10/25/07LXO Meeting - GSFC10 n He =0.015e -1/r

11 10/25/07LXO Meeting - GSFC11 Terrestrial neutral Hydrogen

12 10/25/07LXO Meeting - GSFC12

13 10/25/07LXO Meeting - GSFC13

14 10/25/07LXO Meeting - GSFC14

15 10/25/07LXO Meeting - GSFC15 Solar Wind Density

16 10/25/07LXO Meeting - GSFC16 Terrestrial Hydrogen

17 10/25/07LXO Meeting - GSFC17 Intensities

18 10/25/07LXO Meeting - GSFC18 Combined Results

19 10/25/07LXO Meeting - GSFC19 Looking the other way

20 10/25/07LXO Meeting - GSFC20 The Efficiency Factor 

21 10/25/07LXO Meeting - GSFC21  depends on Solar wind composition (hence solar wind speed) Neutral solar wind charge exchanges with Helium? Hydrogen? Argon? Solar wind composition (hence solar wind speed) Neutral solar wind charge exchanges with Helium? Hydrogen? Argon?

22 10/25/07LXO Meeting - GSFC22 For average solar wind conditions:  = 6.0 x 10 -16 eV cm 2 (hydrogen)  = 3.0 x 10 -16 eV cm 2 (helium)  = 6.0 x 10 -16 eV cm 2 (hydrogen)  = 3.0 x 10 -16 eV cm 2 (helium)

23 10/25/07LXO Meeting - GSFC23 Lunar Modeling

24 10/25/07LXO Meeting - GSFC24 Two observation points

25 10/25/07LXO Meeting - GSFC25 The local bubble

26 10/25/07LXO Meeting - GSFC26

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