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Cherenkov Telescope Array. J. Carr. CTA Project. Prototypes: 2013-17 First Science: ~2017 Completion: ~2020. A huge improvement in all aspects of performance A factor ~10 in sensitivity, m uch wider energy coverage, much better resolution , field-of-view, full sky, …
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Cherenkov Telescope Array J. Carr Cherenkov Telescope Array, J. Carr
CTA Project Prototypes: 2013-17 First Science: ~2017 Completion: ~2020 • A huge improvement in all aspects of performance • A factor ~10 in sensitivity, much wider energy coverage, much better resolution, field-of-view, full sky, … • A user facility / proposal-driven observatory • With two sites with a total of >100 telescopes • A 27 nation ~€200M project • Including everyone from HESS, MAGIC and VERITAS
-11 10 Fermi 1 year HESS -12 10 Sensitivity: E × F(>E) (TeV/cm2s) 50 hours -13 10 CTA --14 10 0.01 0.1 1 10 100 Energy (TeV) SST MST LST
Sites: Candidates Arizona (2) Tenerife • A many sites • Extensive studies taken place • Decisions 2014 • Selection will take into account weather, construction / operations costs, performance (from simulations), risks, … • Site development 2017 • First telescopes operating on site in 2017 SPM - Mexico Argentina (2) Aar/HESS Namibia Chile - Armazones
CTA Science • Cosmic Particle Acceleration, Propagation and Impact • Mechanisms for particle acceleration, galactic CR acceleration and Pevatrons, acceleration in jets and lobes of AGN, cosmic ray transport, … • What role do accelerated particles play in feedback on star formation and galaxy evolution? • Probing Extreme Environments • Neutron stars and black holes, relativistic jets, winds and explosions, the contents of cosmic voids, … • Physics Frontiers • What is the nature of Dark Matter? How is it distributed? • Is the speed of light a constant for high-energy photons? • Do axion-like particles exist?
Indirect Searches for Dark Matter Cherenkov Telescope Array, J. Carr
Targets for IDM Searches Cherenkov Telescope Array, J. Carr
Comparison of targets Cherenkov Telescope Array, J. Carr
Internal Bremsstralung Cherenkov Telescope Array, J. Carr
Reach of IDM searches Cherenkov Telescope Array, J. Carr
CTA Reach Current Galactic VHE sources (with distance estimates) HESS • Galactic objects • Newly born pulsars and the supernova remnants • have typical brightness such that HESS etc can see only relatively local (typically at a few kpc) objects • CTA will see whole Galaxy • Field of view + sens. • Survey speed ~300×HESS CTA 5° 8°
Tycho SNR: “Pevatron” Morlino and Caprioli Astro-ph/1105.6342 Astroparticle Physics, J. Carr
Hadronic SNRs Manelartz and Tjus astro-ph/1301.2437 Northern Sky Southern Sky Astroparticle Physics, J. Carr
Effective Area 10 TeV Energy CTA: 2.5 106 m2 ICECUBE: 10 m2 CTA sensitive to hadronic sources with fluxes 10-5 lower than ICECUBE (KM3NeT) CTA Cherenkov Telescope Array, J. Carr
CTA Resolution 10 Arcminutes Requirement CTA Goal 1
The Galactic Centre • CTAresolution+sensitivity can disentangle emission HESS PSF SNR G0.9+0.1 Sgr A* Sgr B2 CTA PSF NRAO:20cm,1.1mm,5 μm HESS
CTA Schedule • Design Study • Design development 2006-9 • CTA appears on key roadmaps • Preparatory Phase • EU FP7 funded activity 2010-14 • Preliminary Design Review 2013 • Site Selection 2014 • Critical Design Review 2015 • Construction Phase • Site development and first telescopes on site 2017 • First science 2017 • Completion ~2020 Cherenkov Telescope Array, J. Carr
HESS 4 12m telescopes + 1 28m telescope operational Science on HESS immediately to prepare for science on CTA Cherenkov Telescope Array, J. Carr