Spring 2020: Week 02 ASTR/PHYS 5590: High Energy Astrophysics Week 2 1 Lecture material, handouts, and HW posted to the website Chapter 5: Ionization losses by energetic ions plowing through a neutral medium Chapter 6: Radiation losses by energetic electrons getting deflected by ions in a plasma
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Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
Week 2
!1
Lecture material, handouts, and HW posted to the website
Chapter 5: Ionization losses by energetic ions plowing through a neutral medium
Chapter 6: Radiation losses by energetic electrons getting deflected by ions in a plasma
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
“Swordy Plot”
particle flux of CRs at the Earth
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Fig. 15.1
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics !3
Fig. 5.1
Fig. 5.2
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
Relativistic Case: Ionization losses
!4
Fig. 5.3
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics !5
Fig. 5.4
Non-rel.
Relativistic
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
Bethe-Bloch Formula
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Fig. 5.5
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
Radiation of an accelerated charge
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Fig. 6.1
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
Relativistic Case: electron radiation losses
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Fig. 5.3
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics !9
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
Bremsstrahlung of a single electron, for a single impact parameter b
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Fig. 6.2
Spring 2020: Week 02ASTR/PHYS 5590: High Energy Astrophysics
Bremsstrahlung emissivity from a thermal distribution