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arXiv · 0705.4234

A Study on anisotropy of cosmic ray distribution with a small array of water-cherenkov detectors

F. Sheidaei·M. Bahmanabadi·A. Keivani·M. Khakian Ghomi·J. Samimi·A. Shadkam
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Abstract

The study of the anisotropy of the arrival directions is an essential tool to investigate the origin and propagation of cosmic rays primaries. A simple way of recording many cosmic rays is to record coincidences between a number of detectors. We have monitored multi-TeV cosmic rays by a small array of water cherenkov detectors in Tehran(35 43 N, 51 20 E, 1200m a.s.l). More than 1.1*10^6 extensive air shower events were recorded. In addition to the Compton- Getting effect due to the motion of the earth in the Galaxy, an anisotropy has been observed which is due to a unidirectional anisotropy of cosmic ray flow along the Galactic arms.

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F. Sheidaei, M. Bahmanabadi, A. Keivani, M. Khakian Ghomi, J. Samimi, A. Shadkam. 2007-05-29. A Study on anisotropy of cosmic ray distribution with a small array of water-cherenkov detectors. https://doi.org/10.1103/physrevd.76.082002

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