mass composition of the escaping plasma at mars ella carlsson irf kiruna supervisors: professor...
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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 Carlsson IRF Kiruna
Carbon-silicate cycle
Ella Carlsson IRF Kiruna
Atmosphere• 95% CO2
Ella Carlsson IRF Kiruna
Water related features:
Streamliners
Ella Carlsson IRF Kiruna
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’Layered rock named ‘Last Chance’
Ripple features in Earth rockRipple 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 Carlsson IRF Kiruna
Ella's mission
Solve the problem with the missing carbonates!
Ella Carlsson IRF Kiruna
IMA – Ion Mass Analyzer
A. FedorovElla Carlsson IRF Kiruna
MEX - orbit
Ella Carlsson IRF Kiruna
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: 2x1025 s-1
CO2+ escape rate: 4x1024 s-1 (0.29 kgs -1)
Submitted to Icarus
Ella Carlsson IRF Kiruna
Martian atmospherePast: 1-5 bar3 bar - 1.2x1019 kgPresent:6.4 mbar - 2.5x1016 kg
Total amount of escaped CO2+ (4 Gyr)3.7x1016 kg
• XUV• Solar wind• Intrinsic magnetic field
Ella Carlsson IRF Kiruna
Ella Carlsson IRF Kiruna
So why is all this stuff important?
