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AboutThe Global Cosmic Ray Observatory - GCOS is an intended next-generation observatory to measure the properties of the highest-energy particles in the Universe with unprecedented precision after the year 2030.At present, the largest detector for cosmic rays is the Pierre Auger observatory in Malargüe, Argentina, covering an area of 3000 km2. To increase its sensitivity to the type of particle, at present, additional components are being installed at the observatory. In the northern hemisphere the Telescope Array , located in Utah, USA, is covering an area of 700 km2, presently undergoing an extension to cover about 2800 km2. Objective of these installations is to measure the properties of ultra high-energy cosmic rays with unprecedented precision in the next decade (until about 2030). Key properties include the arrival direction (on the sky), the energy, and the particle type. The flux of particles provided by Nature at the highest energies is small and to address the physics questions, a new facility is needed after 2030 with an acceptance at least an order of magnitude larger than the existing observatories. UHECR White PaperThe physics case of GCOS is outlined in a recent UHECR White Paper.GCOS workshop June 2023Aim of the workshop is to further advance our plannings towards the Global Cosmic Ray Observatory - GCOS. One of the main objectives will be to agree on a few straw man designs, which can be used for simulations in order to concretize the expected performance of GCOS for basic performance parameters such as, angular resolution, energy resolution, and the capability to identify the particle type (mass resolution). The discussions will include potential detector designs and preparatory work.The workshop will be hosted at the Universite Libre de Bruxelles in Belgium. More information on the workshop is available on the Workshop INDICO page.
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For more information, please contact
Jörg R. Hörandel
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