IPA 2013

Session

Cosmic-Ray Theory / Experiments II

13 May 2013, 16:00

Union South

54. Study of TeV-PeV cosmic-ray anisotropy with the IceCube, IceTop, and AMANDA detectors

Marcos Santander (o=uwmad,ou=Institutions,dc=icecube,dc=wisc,dc=edu)

13/05/2013, 16:00

Cosmic Rays (Theory/Experiment) Parallel

The study of the cosmic ray anisotropy in the TeV-PeV energy range could provide clues about the origin and propagation of cosmic rays in our galaxy. The measurement of this per-mille-anisotropy requires data sets with several billion cosmic-ray events. A sample of this size has been collected over the last six years by the IceCube neutrino telescope at the south pole, which detects...

53. Cosmic Ray Physics with ARGO-YBJ

Dr Roberto Iuppa (University & INFN of Rome Tor Vergata)

13/05/2013, 16:18

Cosmic Rays (Theory/Experiment) Parallel

The ARGO-YBJ experiment consists of a 5700 m2 single layer of Resistive Plate Chambers situated at the Yangbajing Cosmic Ray Laboratory, Tibet (P.R. of China), 4300 meters a.s.l. A partially instrumented guard ring (1700 m2) around the central zone extends the instrumented area up to 11000 m2. The experiment is sensitive to extensive air showers initiated by primaries in the 10^9-10^15 eV...

9. Sensitivity of Auger and JEM-EUSO to Ensemble Fluctuations in the Ultra-High Energy Cosmic Ray Flux

Dr Paul Thomas (University of Wisconsin-Milwaukee and Northeastern University)

13/05/2013, 16:36

Cosmic Rays (Theory/Experiment) Parallel

The flux and nuclear composition of ultra-high energy cosmic rays depend on the cosmic distribution of their sources. Data from cosmic ray observatories are yet inconclusive about their exact location or distribution, but provide a measure for the average local density of these emitters. Due to the discreteness of the emitters the flux and nuclear composition is expected to show ensemble...

44. Deflections of UHECRs from Cen A in the Galactic magnetic field

Azadeh Keivani (Louisiana State University)

13/05/2013, 16:54

Cosmic Rays (Theory/Experiment) Parallel

The Galactic magnetic deflection of cosmic rays from a source strongly depends on the Galactic magnetic field (GMF) model. We use the recent GMF model of Jansson and Farrar (JF12), a 35-parameter model which includes coherent, striated and random components and is constrained by WMAP synchrotron maps and all available extragalactic rotation measures. Here, we present the results of propagating...

33. Newborn pulsars as ultrahigh energy cosmic accelerators

Ke Fang (University of Chicago)

13/05/2013, 17:12

Cosmic Rays (Theory/Experiment) Parallel

Particles can be accelerated to above 10**19 eV by newborn pulsars with spin period less than 10 millisecond. These cosmic rays travel through the dense stellar remnant surrounding the pulsar, and then reach the earth. With the appropriate injection composition, ultrahigh energy cosmic rays from extragalactic pulsars can fit both the energy spectrum and composition (Xmax and RMS-Xmax) measured...