High Energy cosmic-Radiation Detection (HERD) Facility onboard Chinas Space Station Shuang-Nan Zhang(张双南) Zhangs@ihep. accn Center for Particle Astrophysics 粒子天体物理中心 Institute of High Energy physics Chinese Academy of Sciences 1/42
High Energy cosmic-Radiation Detection (HERD) Facility onboard China’s Space Station Shuang-Nan Zhang (张双南) zhangsn@ihep.ac.cn Center for Particle Astrophysics 粒子天体物理中心 Institute of High Energy Physics Chinese Academy of Sciences 1/42
Astroparticle Physics Particle Astrophysics Physics Astronomy Particle Physics Astrophysics Astroparticle Physics Particle Astrophysics ool: Universe Tool: Particle Physics Goal: Particle Physics Goal: Universe The Physical Universe and its Laws 142
Astroparticle Physics & Particle Astrophysics Physics Particle Physics Astroparticle Physics Particle Astrophysics Astronomy Astrophysics Tool: Universe Goal: Particle Physics Tool: Particle Physics Goal: Universe The Physical Universe and Its Laws 2/42
Tibet High Altitude Cosmic-ray Observatory Sea level and YBJ—ASy,ARGo Space Projects Underground Exp. LHAASO AMS CE. HXMT CMS, Daya-Bay POLAR DAMPE SVOM Dark matter search SEMS. XTP HERD 150 students HEP Center 180 fulltime staff postdocs and for Particle scientists and visiting scholars Astrophysics engineers High Energy Cosmic-ray Gravity Cosmology Charged Particles, Compact Objects Neutrinos, Gamma-rays Galaxy, Cluster Explosive Phenomena CMB GRB SN&SNR Bh&NS accretion 2
IHEP Center for Particle Astrophysics High Energy Cosmic-ray Charged Particles, Neutrinos, Gamma-rays Explosive Phenomena GRB,SN&SNR BH&NS accretion Sea Level and Underground Exp. CMS, Daya-Bay Dark Matter Search Gravity & Cosmology Compact Objects Galaxy, Cluster CMB Space Projects AMS, CE, HXMT POLAR, DAMPE, SVOM SEMS, XTP, HERD Tibet High Altitude Cosmic-ray Observatory YBJ－AS, ARGO LHAASO 180 fulltime staff scientists and engineers 150 students, postdocs and visiting scholars 3/42
HERD: High Energy cosmic-Radiation Detector Science goals Mission requirements Dark matter R1: Better statistical measurements search of e/y between 100 GeV to 10 TeV Origin of R2: Better spectral and composition Galactic measurements of crs between Cosmic rays 300 Gev to Pev* with a large geometrical factor Secondary science: Y-ray astronomy> monitoring of grbs microquasars, blazars and other transients> down to 100 Mev for y-rays> plastic scintillator shields for y-ray selection *complementary to high altitude cosmic-ray observations 2
Science goals Mission requirements Dark matter search R1: Better statistical measurements of e/γ between 100 GeV to 10 TeV Origin of Galactic Cosmic rays R2: Better spectral and composition measurements of CRs between 300 GeV to PeV* with a large geometrical factor HERD: High Energy cosmic-Radiation Detector Secondary science: γ-ray astronomy → monitoring of GRBs, microquasars, Blazars and other transients → down to 100 MeV for γ -rays → plastic scintillator shields for γ -ray selection *complementary to high altitude cosmic-ray observations 4/42
HERD Cosmic Ray Capability Requirement P(~1) a.gi3 He(~4) L(~8) M(~14) Model 1 d Model 2 H(~25) 10 Light model Heavy Model ⅦH(~35) Pe∨ Fe(~56) 10 fev Detection limit: N= 10 events I PeV EXcept for L, up -h to PeV spectra w feasible with M 0.36m'Sr PeV Fe GF-2-3 in NouAu years 3sr discriminate HERD HERD between models TeV t03 eV 2
HERD Cosmic Ray Capability Requirement P ( ~ 1) He ( ~ 4) L ( ~ 8) M ( ~ 14) H ( ~ 25) VH ( ~ 35) Fe ( ~ 56) Except for L, up to PeV spectra feasible with GF~2-3 in ~years: discriminate between models. N(E>E0; 2 yr) PeV PeV Model 1 Light model Model 2 Heavy Model TeV TeV PeV PeV HERD HERD Detection limit: N = 10 events 5/42
