中国缚学程术大学 University of Science and Technology of China 伽马射线天文 杨睿智
伽马射线天⽂ 杨睿智
Outline 中国斜学我术大学 University of Science and Technology of China 1.spaceborne gamma-ray detectors 2.ground based gamma-ray detectors 3.Scientific output and prospect
Outline 1. spaceborne gamma-ray detectors 2. ground based gamma-ray detectors 3.Scientific output and prospect
地球大气透明电磁窗口 Most of the Vis ble light infrared spectrum png-wavelength Radio waves observable Gamma rays,X-rays and ultraviolet obs ervable absorbed by dio waves from Earth. light blocked by the upper atmosphe fro Earth, ocked. e atmospheric (best observed from space). wit some gasses(best atn ospheric observed distortion. from space). 100% 完全不 射电 50% 透明 0% 0.1nm 1nm 10 nm 100 nm 1 um 10 um 100 um 1mm 1 cm 10cm ,1m10m100m1km Wavelength cb 86 bulldings humans insects grains human protozoa molecules atoms atomic subatomic ⊙fs线nd cells nuclel particles radio microwave (sub)mm infrared visible ultraviolet ×-my gamma-ray 10 1 mm 0.3mm 780 380 10 0.01nm 0.000001nm wavelength AAAAM
Gamma-ray Astronomy
Gamma-ray Astronomy 中国斜学我术大学 University of Science and Technology of China Atmosphere is opaque for gamma-rays Satellite or air shower Fermi LAT H.E.S.S LHAASO (0.1~1000GeV) (0.1~10TeV) (1Te)
Gamma-ray Astronomy • Atmosphere is opaque for gamma-rays • Satellite or air shower Fermi LAT (0.1 ~ 1000 GeV) LHAASO (>1 TeV) H.E.S.S (0.1 ~ 10 TeV)
Spaceborne detectors 中国斜学我术大学 University of Science and Technology of China pair conversion telescopes Large FOV (~3 sr) 0.1~1000GeV small effective area (~1 m^2) Fermi LAT moderate PSF(0.1-1 degree) continuous monitoring Dampe
Spaceborne detectors • pair conversion telescopes • Large FOV (~ 3 sr) • 0.1~ 1000 GeV • small effective area (~ 1 m^2) • moderate PSF (0.1 - 1 degree) • continuous monitoring Fermi LAT Dampe