CCAPP Seminar: "Utilizing HAWC Observations to Shed Light on Milky Way Pulsars" Tim Linden (OSU)

June 4, 2018
Tuesday, May 23, 2017 - 11:30am to 12:30pm
McPherson 4054
CCAPP Logo

Recent HAWC observations have found extended TeV emission coincident with the Geminga and Monogem pulsars. In this talk, I will show that these detections have significant implications for our understanding of pulsar emission. First, the spectrum and intensity of these "TeV Halos" indicates that a large fraction of the pulsar spindown energy is efficiently converted into electron-positron pairs. This provides observational evidence supporting pulsar interpretations of the rising positron fraction observed by PAMELA and AMS-02. Second, the isotropic nature of this emission provides a new avenue for detecting nearby pulsars with radio beams that are not oriented towards Earth. I will also discuss the implications of HAWC results for our understanding of the diffuse TeV gamma-ray and neutrino sky.

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