activity
19992021
most citedNew Measurement of the Cosmic-Ray Positron Fraction from 5 to 15 GeV

219 citations · 585 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.SR2021★ 22 cited

Suprathermal Ion Energy spectra and Anisotropies near the Heliospheric Current Sheet crossing observed by the Parker Solar Probe during Encounter 7

M. I. Desai, D. G. Mitchell, D. J. McComas +31

We present observations of >10-100 keV/nucleon suprathermal (ST) H, He, O, and Fe ions associated with crossings of the heliospheric current sheet (HCS) at radial distances <0.1 au…

astro-ph.SR2019★ 37 cited

Observations of the 2019 April 4 Solar Energetic Particle Event at the Parker Solar Probe

R. A. Leske, E. R. Christian, C. M. S. Cohen +33

A solar energetic particle event was detected by the Integrated Science Investigation of the Sun (ISOIS) instrument suite on Parker Solar Probe (PSP) on 2019 April 4 when the space…

physics.space-ph2019★ 26 cited

Energetic Particle Observations from Parker Solar Probe using Combined Energy Spectra from the ISIS Instrument Suite

C. J. Joyce, D. J. McComas, E. R. Christian +18

The Integrated Science Investigations of the Sun (ISIS) instrument suite includes two Energetic Particle instruments: EPI-Hi, designed to measure ions from ~1-200 MeV/nuc, a…

physics.space-ph2019★ 46 cited

Energetic Particle Increases Associated with Stream Interaction Regions

C. M. S. Cohen, E. R. Christian, A. C. Cummings +34

The Parker Solar Probe was launched on 2018 August 12 and completed its second orbit on 2019 June 19 with perihelion of 35.7 solar radii. During this time, the Energetic particle I…

astro-ph.HE2019

Ultra-heavy cosmic-ray science--Are r-process nuclei in the cosmic rays produced in supernovae or binary neutron star mergers?

W. R. Binns, M. H. Israel, B. F. Rauch +25

The recent detection of 60Fe in the cosmic rays provides conclusive evidence that there is a recently synthesized component (few MY) in the GCRs (Binns et al. 2016). In addition, t…

astro-ph.HE2016★ 43 cited

Galactic Cosmic Ray Origins and OB Associations: Evidence from SuperTIGER Observations of Elements Fe through Zr

R. P. Murphy, M. Sasaki, W. R. Binns +14

We report abundances of elements from Fe to Zr in the cosmic radiation measured by the SuperTIGER (Trans-Iron Galactic Element Recorder) instrument during 55 days of…