5 papers
Galactic Cosmic Ray Acceleration with Steep Spectra
Rebecca Diesing, Damiano Caprioli
Galactic cosmic rays (CRs) are accelerated by astrophysical shocks, primarily supernova remnants (SNRs), via diffusive shock acceleration (DSA), an efficient mechanism that predict…
Nonsecondary origin of cosmic ray positrons
Rebecca Diesing, Damiano Caprioli
We investigate the possibility of secondary production as the source of cosmic ray (CR) positrons, taking into account observed electron and antiproton spectra and allowing that th…
Anomalous ANITA air shower events and tau decays
Shoshana Chipman, Rebecca Diesing, Mary Hall Reno +1
Two unusual neutrino events in the Antarctic Impulse Transient Antenna (ANITA) appear to have been generated by air showers from a particle emerging from the Earth at angles 25-35…
On the Spectrum of Electrons Accelerated in Supernova Remnants
Rebecca Diesing, Damiano Caprioli
Using a semi-analytic model of non-linear diffusive shock acceleration, we model the spectrum of cosmic ray (CR) electrons accelerated by supernova remnants (SNRs). Because electro…
Effect of Cosmic Rays on the Evolution and Momentum Deposition of Supernova Remnants
Rebecca Diesing, Damiano Caprioli
Using a semianalytical approach based on the thin-shell approximation, we calculate the long-term evolution of supernova remnants (SNRs) while also accounting for the cosmic rays (…