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Mass composition of the escaping plasma at Mars Ella Carlsson IRF Kiruna Supervisors: Professor Sverker Fredriksson, LTU Professor Stas Barabash, IRF Ella.

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Presentation on theme: "Mass composition of the escaping plasma at Mars Ella Carlsson IRF Kiruna Supervisors: Professor Sverker Fredriksson, LTU Professor Stas Barabash, IRF Ella."— Presentation transcript:

1 Mass composition of the escaping plasma at Mars Ella Carlsson IRF Kiruna Supervisors: Professor Sverker Fredriksson, LTU Professor Stas Barabash, IRF Ella Carlsson IRF Kiruna

2 Carbon-silicate cycle Ella Carlsson IRF Kiruna

3 Atmosphere 95% CO 2 Ella Carlsson IRF Kiruna

4 Water related features: Streamliners Ella Carlsson IRF Kiruna

5 Water related features: Gullies

6 Ella Carlsson IRF Kiruna Water related features: Riverbeds

7 Water related features: Hematite spheres

8 Layered rock named ‘Last Chance’ Ripple features in Earth rock Water related features: Cross bedding

9 Frozen lake? Ella Carlsson IRF Kiruna

10 Gamma ray spectrometer…..finds water Ella Carlsson IRF Kiruna

11 ?

12 Ella's mission Solve the problem with the missing carbonates! Ella Carlsson IRF Kiruna

13 IMA – Ion Mass Analyzer A. Fedorov Ella Carlsson IRF Kiruna

14 MEX - orbit Ella Carlsson IRF Kiruna

15 Ion-beam event

16 Energy-mass matrix Ella Carlsson IRF Kiruna

17 Mass-fitting Ella Carlsson IRF Kiruna

18 Mass-fitting Ella Carlsson IRF Kiruna

19 Ion-beam events Ella Carlsson IRF Kiruna

20 Flux ratios Phobos-2 data (Lundin et al., 1989) O + escape rate: 2x10 25 s -1 CO 2+ escape rate: 4x10 24 s -1 (0.29 kgs -1 ) Submitted to Icarus Ella Carlsson IRF Kiruna

21 Martian atmosphere Past: 1-5 bar 3 bar - 1.2x10 19 kg Present: 6.4 mbar - 2.5x10 16 kg Total amount of escaped CO 2+ (4 Gyr) 3.7x10 16 kg XUV Solar wind Intrinsic magnetic field Ella Carlsson IRF Kiruna

22 So why is all this stuff important?

23 On to Mars! Ella Carlsson IRF Kiruna


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