A unique observatory in a remote location in Argentina is starting to unravel the mysteries of High Energy Cosmic Rays. There is no scientific consensus on the source of these particles which the shower the Earth at energies 10 million times higher than can be produced in particle accelerators! But the Pierre Auger Observatory is shedding new light on these energetic particles from space and using them as messengers to tell us more about the wider Universe.
Scientists of the Pierre Auger Observatory will hold a celebration in Malargüe, Argentina, from 9 November to 11 November 2005, to mark the progress of the Observatory and the presentation of the first physics results.
To witness these extremely rare events, the observatory is constructing an array of 1600 detectors spread over 3000 square kilometres (an area roughly the size of Cambridgeshire in the UK) in Argentinas Mendoza Province, just east of the Andes Mountains. Each of these “Cherenkov” detectors contains 3000 gallons of water and detects the electromagnetic ‘shock waves’ as the particles pass through. Surrounding the array is a set of 24 telescopes which, on clear moonless nights, observe the ultraviolet fluorescence light produced as cosmic ray shower particles travel through the atmosphere.
Julia Maddock | alfa
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Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
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