July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Multi-spacecraft observations of heavy-ion solar energetic particles

Jul 30, 2015, 3:30 PM
1h
Theater Foyer (World Forum)

Theater Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 3
Poster contribution SH-EX Poster 1 SH

Speaker

Peter Zelina (University of Central Lancashire)

Description

Solar Energetic Particles (SEPs) released during flares and coronal mass ejections can be detected by spacecraft widely separated in longitude. The mechanism by which this transport across the magnetic field takes place remains unclear. Studies of SEP events simultaneously detected by multiple spacecraft have mostly focussed on electron and proton data. Here we consider multi-spacecraft events observed by the LET instrument on STEREO A and B, and by SIS on board ACE, located near Earth, and analyse the properties of heavy ion SEPs. We study the intensity time profiles and spectra, and the time variations of heavy ion ratios. We verify how these measurements depend on the relative location between the magnetic footpoint of the spacecraft and the associated solar eruptive events. We discuss how the results provide information on possible mechanisms for particle cross field transport, including drift processes.
Registration number following "ICRC2015-I/" 120

Primary author

Peter Zelina (University of Central Lancashire)

Co-author

Dr Silvia Dalla (University of Central Lancashire)

Presentation materials

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