Sharp increasing of positron to electron fluxes ratio below 2 GV measured by the PAMELA

• Magnetic spectrometer PAMELA was launched onboard a satellite Resurs-DK1 into low-Earth polar orbit with altitude 350-600 km to study cosmic ray antiparticle fluxes in a wide energy range from ∼ 100 MeV to hundreds GeV. This paper presents the results of observations of temporal variations of the positron and electron fluxes in the 2006-2015. The ratio of the positron and electron fluxes below 2 GV shows sharp increasing since 2014 due to changing of the polarity of the solar magnetic field.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Astrophysics

Cosmology

Electrons

Magnetic polarity

Orbits

Positrons

Earth polar orbit

Electron flux

Magnetic spectrometers

Solar magnetic fields

Temporal variation

Wide energy range

Cosmic rays

Publication and Content Type

ref (subject category)

art (subject category)