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A crystal clear place to study the skies

In the last few decades, Argentina and Chile have proven themselves prime spots for astronomical observation—a status that has been a boon in many ways for both countries.

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First antenna for the AugerPrime radio upgrade!

March 2019: Young scientists cheer after installing the first antenna for the AugerPrime radio upgrade!

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Getting insights into the measured dipolar anisotropy

The Pierre Auger Collaboration measured a dipolar anisotropy in the arrival-direction distribution of the cosmic rays with energies in excess of 8x1018 eV, finding that the flux is about
6.5% larger than the average in one direction of the sky and it is correspondingly smaller in the opposite direction.

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Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory

Extensive air showers, initiated in the Earth’s atmosphere by high-energy cosmic rays, emit pulsed radio signals with a typical duration of tens of nanoseconds. With the Auger Engineering Radio Array (AERA), consisting of 150 detector stations on an area of 17 km2, we measure these signals in the 30 to 80 MHz band. For air showers arriving within 60° from the vertical, the radio emission illuminates only limited areas on the ground, of order a few hundred meters in diameter. Consequently, radio signals are typically detectable only in a handful of AERA radio detector stations for a given air shower.

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Dutch Funding Agency NWO provides 2.5 Million € for the Auger Radio Upgrade

2018 October – The Dutch organisation for Scientific Research (NWO) will fund a new antenna network at the Pierre Auger Observatory. The research group Cosmic Ray Research at Radboud University and Nikhef will receive 2.5 million € from the NWO Large Investment Grant programme.

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The Riddle of ultrahigh-energy Cosmic Rays

 

July 31, 2018 – A new article on UHECRs has appeared in Physics World:
The Riddle of ultrahigh-energy Cosmic Rays

 

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20th Anniversary

Shower Simulations

shower simulation

A computer is used to construct a model of what happens in a high energy cosmic ray airshower. Read More...

Google Earth

GoogleEarth

A model of the Observatory layout was constructed, to be viewed interactively using Google Earth. Read More...

Event Display

Event

The Pierre Auger Collaboration agreed on making 1% of its data available to the public. Read More...