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Cosmic Ray Anisotropy Workshop 2011

28–29 Oct 2011
University of Wisconsin Pyle Center
US/Central timezone

Session

Anisotropy measurements and methods

session3_day1
28 Oct 2011, 14:30
309 (University of Wisconsin Pyle Center)

309

University of Wisconsin Pyle Center

702 Langdon Street Madison, WI 53706-1487

Presentation materials

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  1. 20. Cosmic ray anisotropy from AMANDAs point of view
    Maria Gurtner (University of Wuppertal)
    28/10/2011, 14:30
    The AMANDA detector has been operated at the South Pole until 2006 and recorded a total ~9·10^9 muons above ~1 TeV between 2000 and 2006. With a data set of this size, it is possible to probe the southern sky for per-mil anisotropy on all angular scales in the arrival direction distribution of cosmic rays thereby extending anisotropy measurements performed with IceCube. The data presented...
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  2. 10. A measurement of the cosmic ray anisotropy at and above 10^14 eV
    Dr Piera Luisa Ghia (LPNHE (CNRS))
    28/10/2011, 15:00
    The EAS-TOP Extensive Air Shower array was located at Campo Imperatore (2005 m a.s.l., latitude 42◦27N, longitude 13◦34E, INFN Gran Sasso National Laboratory). It took cosmic ray data in the energy range 10^13 eV-10^16 eV from the end of 1980s up to 2000. A first data-set (including 4 years of data) was exploited for the measurement of the cosmic ray anisotropy at E≈10^14 eV (Ap. J. 470, 1996,...
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  3. 29. A needlet-based approach to directional data analysis
    Roberto Iuppa (INFN, Roma 2)
    28/10/2011, 15:30
    EAS array dataset contains signal laying on different angular scales: point-like and extended gamma-ray sources, as well as large and intermediate scale cosmic-ray anisotropies. The separation of all these contributions is crucial, mostly when they overlap with each other. In recent years, the needlet transform has proved to be an effective tool in the analysis of cosmological and...
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  4. 24. Anisotropy in the TeV Cosmic Rays: A Challenge for Interpretation
    Dr Segev BenZvi (University of Wisconsin-Madison)
    28/10/2011, 16:00
    To measure the per-mille anisotropy in the TeV cosmic rays with a ground-based experiment, it is necessary to estimate the exposure of the detector to cosmic ray air showers. The estimate must account for drifts that occur in the detector during the course of the measurement, as well as changes in the shower signal at ground level caused by atmospheric conditions. Due to the difficulty...
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