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First Observations of Solar Disk Gamma Rays over a Full Solar Cycle
Tim Linden, John F. Beacom, Annika H. G. Peter +3
The solar disk is among the brightest gamma-ray sources in the sky. It is also among the most mysterious. No existing model fully explains the luminosity, spectrum, time variabilit…
Constraining the Charge-Sign and Rigidity-Dependence of Solar Modulation
Ilias Cholis, Dan Hooper, Tim Linden
Our ability to identify the sources of cosmic rays and understand how these particles propagate through the interstellar medium is hindered by the combined effects of the solar win…
Dark Matter Annihilation Can Produce a Detectable Antihelium Flux through Decays
Martin Wolfgang Winkler, Tim Linden
Recent observations by the Alpha Magnetic Spectrometer (AMS-02) have tentatively detected a handful of cosmic-ray antihelium events. Such events have long been considered as smokin…
Millisecond Pulsars Modify the Radio-SFR Correlation in Quiescent Galaxies
Takahiro Sudoh, Tim Linden, John F. Beacom
The observed correlation between the far-infrared and radio luminosities of galaxies illustrates the close connection between star formation and cosmic-ray production. Intriguingly…
Anti-Deuterons and Anti-Helium Nuclei from Annihilating Dark Matter
Ilias Cholis, Tim Linden, Dan Hooper
Recent studies of the cosmic-ray antiproton-to-proton ratio have identified an excess of 10-20 GeV antiprotons relative to the predictions of standard astrophysical models. I…