Event Title

Compositional Variation of Solar Energetic Particles over Two Solar Cycles

Location

CoLab, OCB 100

Start Date

27-4-2018 1:30 PM

Document Type

Poster

Description

We present the compositional variation in the Solar Energetic Particle (SEP) population in the inner heliosphere over two solar cycles using data from the Ulysses Heliospheric Instrument for Spectra, Composition, and Anisotropy at Low Energies (HISCALE) and Advanced Composition Explorer (ACE) Electron Proton Alpha Monitor (EPAM). The Ulysses mission was active from late 1990 to mid-2009 in a heliopolar orbit inclined by 80° with a perihelion of 1.3 AU and an aphelion of 5.4 AU. The ACE mission has been active since its launch in late 1997 and is in a halo orbit about L1 providing 27 years of continuous observation in the inner heliosphere and 12 years of simultaneous observation.

Comments

The faculty supervisor for this project was J. Douglas Patterson, Astronomy.

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Apr 27th, 1:30 PM

Compositional Variation of Solar Energetic Particles over Two Solar Cycles

CoLab, OCB 100

We present the compositional variation in the Solar Energetic Particle (SEP) population in the inner heliosphere over two solar cycles using data from the Ulysses Heliospheric Instrument for Spectra, Composition, and Anisotropy at Low Energies (HISCALE) and Advanced Composition Explorer (ACE) Electron Proton Alpha Monitor (EPAM). The Ulysses mission was active from late 1990 to mid-2009 in a heliopolar orbit inclined by 80° with a perihelion of 1.3 AU and an aphelion of 5.4 AU. The ACE mission has been active since its launch in late 1997 and is in a halo orbit about L1 providing 27 years of continuous observation in the inner heliosphere and 12 years of simultaneous observation.