Astronomy and Astrophysics – Astrophysics – Instrumentation and Methods for Astrophysics
Scientific paper
2009-06-30
Erratum-ibid.33:65-67,2010
Astronomy and Astrophysics
Astrophysics
Instrumentation and Methods for Astrophysics
24 pages, 9 figures, accepted for publication in Astroparticle Physics
Scientific paper
10.1016/j.astropartphys.2009.06.
Atmospheric parameters, such as pressure (P), temperature (T) and density, affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the impact of atmospheric variations on extensive air showers by means of the surface detector of the Pierre Auger Observatory. The rate of events shows a ~10% seasonal modulation and ~2% diurnal one. We find that the observed behaviour is explained by a model including the effects associated with the variations of pressure and density. The former affects the longitudinal development of air showers while the latter influences the Moliere radius and hence the lateral distribution of the shower particles. The model is validated with full simulations of extensive air showers using atmospheric profiles measured at the site of the Pierre Auger Observatory.
No associations
LandOfFree
Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-440852