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Siming Liu Purple Mountain Observatory

Siming Liu Purple Mountain Observatory. Outline. 1 Background a: What is the Cherenkov Telescope Array? b: What do we know about the Galactic Center Gamma-ray Source? 2 Key results of the paper 3 Conclusions. 1.a: Cherenkov Telescope Array. 1.a: Cherenkov Telescope Array.

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Siming Liu Purple Mountain Observatory

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  1. Siming Liu Purple Mountain Observatory

  2. Outline 1 Background a: What is the Cherenkov Telescope Array? b: What do we know about the Galactic Center Gamma-ray Source? 2 Key results of the paper 3 Conclusions

  3. 1.a: Cherenkov Telescope Array

  4. 1.a: Cherenkov Telescope Array • Cherenkov radiation: velocity of the emitting particles is higher than the speed of light in the medium • Air Cherenkov Telescope uses Cherenkov radiation of high energy particles in the atmosphere to probe the nature of the high energy particle source

  5. 1.a: Air Shower of High Energy Particles

  6. 1.a: Simulated Photon Shower

  7. 1.a: Imaging Process

  8. 1.a: Detection of the Shower

  9. 1.a: Producing an Image

  10. 1.a: The HESS Telescope( High Energy Stereoscopic System ) 100 GeV–10 TeV

  11. 1.a: Cherenkov Telescope Array

  12. 1.b: What do we know about the Galactic Center Gamma-ray Source?

  13. 1.b: TeV Emission from the GC D = 8 kpc, 1arcm = 2.3 pc

  14. 1.b: GeV Emission

  15. The Galactic Center

  16. 2: Key Results D = 8 kpc, 1arcm = 2.3 pc

  17. 2: Key Results

  18. 2: Key Results

  19. 2: Key Results

  20. 3: Conclusions • CTA can readily distinguish hadronicTeVemission from that of a point like source or models of dark matter annihilation. • CTA can be highly complementary to probe of dark matter signature in lower energy ranges

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