ICRC2015

Session

Parallel SH 03 SEP II

1 Aug 2015, 11:00

World Forum

477. Influence of region behind the shock front on acceleration of solar energetic particles

Dr Ivan Petukhov (Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS)

01/08/2015, 11:00

SH-TH

Oral contribution

Acceleration of solar energetic particles by the shock accompanying a coronal mass ejection is considered. Influence of the region behind the shock front on particle acceleration process is investigated. The external boundary of coronal mass ejection and the shock front are specified as the segments of spherical surfaces with the different radii moving in coordination. Nonstationarity of...

853. Solar Energetic Particles measured by AMS-02

Veronica Bindi (University of Hawai'i at Manoa (US))

01/08/2015, 11:15

SH-EX

Oral contribution

The Alpha Magnetic Spectrometer (AMS-02) with its acceptance of about 0.45 m^2 sr, is the largest Solar Energetic Particle (SEP) detector in space. It was installed on the International Space Station (ISS) on May 19, 2011, where it will take data for the duration of the station (≈ 2024). In the first 3 years of operations, AMS-02 detected and measured the highest energy SEPs produced during M-...

857. Study of the Solar Modulation of Local Interstellar Protons with AMS-02, PAMELA, Neutron Monitors and Voyager 1

Mr Claudio Corti (University of Hawai'i at Manoa (US))

01/08/2015, 11:30

SH-TH

Oral contribution

Galactic Cosmic Rays (GCRs) entering the heliosphere are disturbed by the magnetic field of the Sun, which varies with a period of 11 years. The solar modulation affects the GCR fluxes up to few tens of GeV, modifying the shape and the intensity of the local interstellar spectrum (LIS). The time variation of the galactic cosmic protons at Earth can be studied indirectly on ground with the...

566. Transport of Solar Energetic Particles across the Parker field due to field line meandering

Dr Timo Laitinen (Jeremiah Horrocks Institute, University of Central Lancashire, Preston, UK)

01/08/2015, 11:45

SH-TH

Oral contribution

Multi-spacecraft observations of Solar Energetic Particles (SEPs) show that SEPs related to a single solar eruption can be observed over a wide range of heliolongitudes. The SEP anisotropy observations suggest that interplanetary transport significantly contributes to this spreading of SEPs across the mean Parker Spiral field. However, the current transport models that describe the cross-field...

1021. On the origin of relativistic solar particle events: interplanetary transport modelling and radio emission

Karl-Ludwig Klein (Observatoire de Paris)

01/08/2015, 12:00

SH-EX

Oral contribution

The highest energies of solar energetic nucleons detected in space or through gamma-ray emission in the solar atmosphere are in the GeV range. Where and how these particles are accelerated is still controversial. The candidate processes are related to magnetic reconnection in a flare or a coronal mass ejection (CME), and to the shock wave driven by a fast CME. We search for observational...

926. Search for solar neutrons during the maximum activity of solar cycle 24

Dr Yutaka Matsubara (Solar-Terrestrial Environment Laboratory, Nagoya University)

01/08/2015, 12:15

SH-EX

Oral contribution

During the second period of maximum solar activity (October 2013 through October 2014) of the current solar cycle we have searched for solar neutron events. When a solar flare occurs, ions are sometimes accelerated. Those ions interact with the solar atmosphere and produce solar neutrons. We examined recent data from five stations of the International Network of Solar Neutron Telescopes...