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HEP Seminar: I don't know where cosmic-rays come from. Do you?

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Boaz Katz, Princeton University
When
23 April 2014 from 2:30 PM to 3:30 PM
Where
339 Davey Laboratory
Contact Name
Contact Phone
814-865-0418
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Boron, anti-protons and positron cosmic-rays (CRs) come from the
interaction of observed primary CRs (H, He, C, O, N) with the ISM. This
allows the CR luminosity to be robustly estimated.  Weak X-ray emission
poses a challenge for supernova remnants (SNRs) as the acceleration
sites of CR electrons and thus of any CRs. Ultra-high energy CRs and
neutrinos are extra-galactic and have a generation rate per unit star
formation which is not very different from the galactic, lower energy
CRs.  The most exciting possibility is that an unknown transient source
produces all CRs.

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