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 transcript:

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

Carbon-silicate cycle Ella Carlsson IRF Kiruna

Atmosphere 95% CO 2 Ella Carlsson IRF Kiruna

Water related features: Streamliners Ella Carlsson IRF Kiruna

Water related features: Gullies

Ella Carlsson IRF Kiruna Water related features: Riverbeds

Water related features: Hematite spheres

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

Frozen lake? Ella Carlsson IRF Kiruna

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

?

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

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

MEX - orbit Ella Carlsson IRF Kiruna

Ion-beam event

Energy-mass matrix Ella Carlsson IRF Kiruna

Mass-fitting Ella Carlsson IRF Kiruna

Mass-fitting Ella Carlsson IRF Kiruna

Ion-beam events Ella Carlsson IRF Kiruna

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

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

So why is all this stuff important?

On to Mars! Ella Carlsson IRF Kiruna

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