Events Calendar

JSI Special Seminar - Tim Linden
Thursday 11 May 2017, 15:30 - 16:30
Contact Susan Lehr
Location Room 1136 Physical Sciences Complex

"Utilizing HAWC Observations to Shed Light on Milky Way Pulsars"

Speaker:  Tim Linden (OSU)


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.


Parking:  You may park in the Regents Drive Parking Garage located directly across from the Physical Sciences Complex.  Look for the green Pay Station Parking signs and park in any numbered lot.  Please use parking code 883-80861 for this event.  This parking code is good for 05/11/17 only.


Suggestions for colloquium speakers are welcome.  Please contact the JSI Colloquium committee:  This email address is being protected from spambots. You need JavaScript enabled to view it. (NASA/GSFC)  /  This email address is being protected from spambots. You need JavaScript enabled to view it. (UMD Astronomy)  /  This email address is being protected from spambots. You need JavaScript enabled to view it. (UMD Physics)


Coffee and cookies will be available beginning at 3:00 pm. Talk begins at 3:30 pm.