Energetic particle acceleration at corotating interaction regions: Ulysses results

Conference · Tue Jul 01 04:00:00 EDT 1997

OSTI ID:619717

Desai, M I; Marsden, R G; Sanderson, T R ^[1]; Balogh, A; Forsyth, R J ^[2]; Gosling, J T ^[3]

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1. ESTEC/ESA, Noordwijk (Netherlands). Space Science Dept.
2. Imperial Coll., London (United Kingdom). Blackett Lab.
3. Los Alamos National Lab., NM (United States)

We present here statistical properties of energetic ions (tilde 1 MeV) accelerated by corotating interaction regions observed at the Ulysses spacecraft. We have correlated the tilde 1 MeV proton intensity measured near the trailing edges of the interaction regions with their compression ratio. We interpret our results in terms of the plasma conditions experienced at Ulysses and identify a likely source of the low energy seed particles accelerated at the interaction regions.

• Research Organization: Los Alamos National Lab., NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 619717
• Report Number(s): LA-UR--97-2055; CONF-9707103--; ON: DE97008982
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ACCELERATION
CIR(COROTATING INTERACTION REGION)
COMPRESSION RATIO
COSMIC RADIATION
HELIUM IONS
MEV RANGE
PROTONS
SOLAR WIND
SPACE VEHICLES
TELESCOPES