Pierre Auger Observatory

Hybrid Detector

Auger cosmic ray shower 265x65

The hybrid nature of the Pierre Auger Observatory provides for two independent ways to see cosmic rays. Read More...

Time Lapse Video

Who Was Pierre Auger?

pierre auger 1935 265x65

The Pierre Auger Observatory experiment was named after Pierre Victor Auger (1899 - 1993) Read More...

How airplanes were used for nanosecond-level time calibration of the Auger Engineering Radio Array

The Auger Engineering Radio Array (AERA) measures radio properties of cosmic-ray induced air showers within the Pierre Auger Observatory. The analysis of the radio data requires a very precise time-synchronisation between the individual radio detector stations. The GPS-clocks built into the AERA stations only provide a resolution of about 10 ns, whereas 1-2 ns is needed.

For this purpose, we conceived and installed a reference transmitter ("beacon") whose signals are recorded within the AERA data stream. Based upon these measurements the timing of each station is adjusted. But how can we independently check if this technique really achieves the precision we need?

Read more...

AugerPrime Press Release

AugerPrime3 834px

 

AugerPrime Symposium

Celebrating 15 years of achievements and signature ceremony of a new International Agreement for the next 10 years

The Pierre Auger Observatory is the world’s leading science project for the exploration of cosmic rays. More than 500 scientists from 16 countries have been working together since 1998 in the Province of Mendoza, Argentina, to elucidate the origin and properties of the most energetic particles in the Universe, coming to us from the far reaches of the cosmos. The Pierre Auger Observatory measures gigantic showers of relativistic particles that are the result of collisions between the very rare, highest-energy cosmic rays and atomic nuclei of the atmosphere. Properties of such air showers are used to infer the energy, direction, and mass of the cosmic particles.

Read more...

Page 5 of 5

Auger On Site

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...