May 26 – 30, 2008
Biblioteca Universitaria, Pavia, Italy
Europe/Rome timezone

Atmospheric Calorimetry above 10^19 eV: Shooting Lasers at the Pierre Auger Cosmic-Ray Observatory

May 28, 2008, 11:30 AM
Salone Teresiano (Biblioteca Universitaria, Pavia, Italy)

Salone Teresiano

Biblioteca Universitaria, Pavia, Italy

Strada Nuova, 65
oral presentation Astrophysics and neutrinos Astrophysics and neutrinos


Prof. Lawrence Wiencke (Colorado School of Mines)


The Pierre Auger Cosmic-Ray Observatory uses the earth's atmosphere as a calorimeter
to measure extensive air-showers created by particles of astrophysical origin. Some
of these particles carry joules of energy. At these extreme energies, test beams are
not available in the conventional sense. Yet understanding the energy response of the
observatory is important because the distance the highest energy cosmic-rays
propagate through the cosmic microwave background radiation is predicted to be strong
function of energy. This talk will discuss recently reported results from the
observatory and the use of calibrated laser "test-beams" that simulate the optical
signatures of ultra-high energy cosmic rays. The status of the much larger (200,000
km^3) companion detector planned for the northern hemisphere will also be outlined.

Primary author

Prof. Lawrence Wiencke (Colorado School of Mines)

Presentation materials