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Astroparticle Physics in SpaceAstroparticle Physics in Space
Claudia CecchiClaudia Cecchi
Dipartimento di Fisica e Sezione INFN, PerugiaDipartimento di Fisica e Sezione INFN, Perugia
Workshop Nazionale La Scienza e la Tecnologia sulla Stazione Workshop Nazionale La Scienza e la Tecnologia sulla Stazione Spaziale Internazionale (ISS), Torino 16-18 maggio 2001Spaziale Internazionale (ISS), Torino 16-18 maggio 2001
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Physics of AMS
• Search for Nuclear Antimatter with a 10-9 sensitivity (anti-He,….,C)
• Search for supersymmetric Dark Matter (p-, e+, spectra )
• Astrophysics: light isotopes, 2H, 3He, 9Be/10Be, B/C
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RECENT AMS RESULTS
STS 91 Flight, June 1998
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NEW LIMIT ON antiHe
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RESULTS on
High Energy CR fluxes on LEO(trapped energetic particles)
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Interazione RC con il campo geomagnetico
Intrappolato(fasce)
Caotico
Primariopoco deflesso
Primariomolto deflesso
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AMS belts vs Van Allen belts
• Van Allen belts: – Low energy from ~ 1 MeV to ~ 100 MeV– Contains e-, p – High L-shells high altitude– Life time O(years)Decays of neutrons produced in interactions of
primary with the atmosphere (CRAND) Solar wind induced magnetic storms
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AMS belts vs Van Allen belts
• AMS belts: – High energy from ~ 1 GeV to ~ 10 GeV– Contains e+, e-, p, 3He– e+ over e- dominance– Low L- shell low altitude– Life time O(seconds)
=> Secondary production from CR interaction with atmosphere
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RESULTS on
Primary Cosmic Ray Spectra
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Energy Range of AMS on ISS
p+ up to several TeVp- up to 200 GeVe- up to O(TeV)e+ up to 200 GeVHe,….C up to several TeVanti – He…C up to O(TeV) up to 100 GeVLight Isotopes up to 20 GeV
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Physics of AMS
• Detection of extragalactic sources– AGN– Blazars
• Measurement of absorption nIR/Ho
• Search for supersymmetric dark matter
• - ray burst
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Energy range of AMS
0.3 to 100 GeV
30-100 GeV --> new range to be explored
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Mission profile
• AMS: 2003- 2007 on the ISS (52o) (three years)
• Agile 2003
• GLAST 2006
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Electrons Positrons
on low earth orbit
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Protons in low earth orbit
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