CRIS 2018

Session

Indirect Measurements of High Energy Cosmic Rays

19 Jun 2018, 09:30

Hotel Vittorio, Portopalo di Capo Passero (SR) - Italy

Conveners

Indirect Measurements of High Energy Cosmic Rays

• Fausto Guarino (NA)

Indirect Measurements of High Energy Cosmic Rays

• Fausto Guarino (NA)

50. Knee, ankle and GZK cutoff in historical perspective

Prof. Giorgio Matthiae (Università di Tor Vergata)

19/06/2018, 09:30

In the field of cosmic ray physics the energy spectrum of the high-energy primary particles is the basic information. The discovery and further investigation of the main features of the spectrum - first and second knee, ankle and GZK cutoff are described following the historical development.

33. Highlights from the Pierre Auger Experiment

Dr Charles for the Pierre Auger Collaboration Timmermans (Nikhef and Radboud University, Nijmegen, the Netherlands)

19/06/2018, 10:15

The Pierre Auger Observatory is the world’s largest air-shower detec- tor for cosmic rays with energies above 10^17 eV. Located near the small town of Malargue in Argentina, it consists of an array of about 1660 water Cherenkov detectors in a triangular grid which covers an area of more than 3000 km^2. In total 27 fluorescence telescopes at four sites overlooking the detector array provide an...

43. Results from the Telescope Array Experiment

Prof. Charles Jui (University of Utah)

19/06/2018, 10:45

The Telescope Array (TA) is a hybrid experiment observing ultrahigh energy cosmic rays in the northern sky. Three fluorescence stations each view 108 degrees in azimuth and up to 30 degrees in elevation. They are located at the periphery of a ground array consisting of 507 plastic scintillator counters, of 1.2km spacing, and covering over 700 square kilometers. A low energy extension...

114. Energy spectrum estimation and mass composition inferences from Xmax measurements of cosmic rays detected at the Pierre Auger Observatory and at the Telescope Array: an inter-collaborative look at the differences at the highest energies

Dr Olivier Deligny (CNRS/IN2P3 - IPN Orsay)

19/06/2018, 11:35

Ultra-high energy cosmic rays are observed through the giant air showers they produce in the atmosphere. With the construction and operation of the new generation of cosmic-ray experiments—the Pierre Auger Observatory in the Southern hemisphere and the Telescope Array in the Northern one—the study of these particles, the most energetic ever detected, has experienced a jump in statistics as...

39. The Extreme Universe Space Observatory on a Super Pressure Balloon (EUSO-SPB) Missions

Prof. Lawrence Wiencke (Colorado School of Mines)

19/06/2018, 12:05

The Extreme Universe Space Observatory on a Super Pressure Balloon (EUSO-SPB), launched from Wanaka NZ, completed a 12 day flight above the Pacific Ocean in May of 2017. The mission goals were to observe high energy extensive air showers with a fluorescence detector looking down on the atmosphere, search for other transient signatures, and characterize the UV emission from Earth. Although the...

124. Cosmic Rays Measurements with LOFAR

Joerg Hoerandel (Radboud University Nijmegen)

19/06/2018, 12:35

8. Study of the origins of ultra-high energy cosmic rays with the Pierre Auger Observatory

Quentin Luce (for the Pierre Auger Collaboration)

19/06/2018, 13:05

The persisting unknown origin of ultra-high energy cosmic rays is constantly investigated at the Pierre Auger Observatory on all angular scales. Recent studies on the large angular scale have discovered the existence of anisotropy with a 5.2 \sigma level of significance in the arrival directions of events with energies higher than 8 EeV. This anisotropy can be described by a dipole with an...