Search
Now showing items 1-10 of 15
Time dependence of the e-flux measured by PAMELA during the 2006 July-2009 December solar minimum
(IOP Publishing, 2015)
Precision measurements of the electron component of cosmic radiation provide important information about the
origin and propagation of cosmic rays in the Galaxy not accessible from the study of cosmic-ray nuclear
components ...
The effect of a dynamic inner heliosheath thickness on cosmic-ray modulation
(IOP Publishing, 2015)
The time-dependent modulation of galactic cosmic rays in the heliosphere is studied over different polarity cycles by
computing 2.5 GV proton intensities using a two-dimensional, time-dependent modulationmodel. By ...
Modelling anomalous cosmic ray oxygen in the heliosheath
(EDP Sciences, 2010)
This paper discusses a numerical modulation model to describe anomalous cosmic ray acceleration and transport in the heliosheath, the portion of the heliosphere between the termination shock and the heliopause. The model ...
Modulation of galactic electrons in the heliosphere during the unusual solar minimum of 2006-2009: a modeling approach
(IOP Publishing, 2015)
The last solar minimum activity period, and the consequent minimum modulation conditions for cosmic rays, was
unusual. The highest levels of Galactic protons were recorded at Earth in late 2009 in contrast to expectations. ...
Jovian electrons in the inner heliosphere: proposing a new source spectrum based on 30 years of measurements
(EDP Sciences, 2018)
Context. Since the Pioneer 10 flyby of Jupiter it has become well known that electrons of Jovian origin dominate the lower MeV range of charged energetic particles in the inner heliosphere.
Aims. Because the Jovian source ...
New very local interstellar spectra for electrons, positrons, protons, and light cosmic ray nuclei
(IOP Publishing, 2019)
The local interstellar spectra (LISs) for galactic cosmic rays (CRs) cannot be directly observed at the Earth below certain energies, because of solar modulation in the heliosphere. With Voyager 1 crossing the heliopause ...
Modeling of heliospheric modulation of cosmic-ray positrons in a very quiet heliosphere
(IOP Publishing, 2019)
Heliospheric modulation conditions were unusually quiet during the last solar minimum activity between solar cycles 23 and 24. Fortunately, the PAMELA space experiment measured 6 month–averaged Galactic positron spectra ...
The re-acceleration of galactic electrons at the heliospheric termination shock
(IOP Publishing, 2017)
Observations by the Voyager spacecraft in the outer heliosphere presented several challenges for the paradigm of diffusive shock acceleration (DSA) at the solar wind termination shock (TS). In this study, the viability of ...
Energy spectra of carbon and oxygen with HELIOS E6: radial gradients of anomalous cosmic ray oxygen within 1 AU
(EDP Sciences, 2018)
Context. Anomalous cosmic rays (ACRs) are well-suited to probe the transport conditions of cosmic rays in the inner heliosphere.We
revisit the HELIOS data not only in view of the upcoming Solar Orbiter experiment but also ...
Proton fluxes measured by the PAMELA experiment from the minimum to the maximum solar activity for solar cycle 24
(IOP Publishing, 2018)
Precise measurements of the time-dependent intensity of the low-energy (<50 GeV) galactic cosmic rays (GCRs)
are fundamental to test and improve the models that describe their propagation inside the heliosphere. In ...