Dr
Markus Gaug
(Universitat Autònoma de Barcelona)
11/06/2013 15:00
Poster contributions
Poster
We investigate the performance of the MAGIC telescopes under three simulated atmospheric conditions: an increased aerosol content in the lower part of the troposphere, the presence of a cloud and an extremely clean atmosphere. We find that the effective area of the telescopes system is gradually reduced in the presence of varying concentrations of aerosols whereas the energy threshold rises....
Michele Doro
(University of Padova and INFN)
11/06/2013 15:05
Poster contributions
Poster
CTA is an advanced facility for ground-based gamma-ray astronomy in the GeV-TeV regime, currently in the Preparatory Phase. For a correct reconstruction of gamma-ray energies and fluxes, a precise monitoring of the atmospheric transmission is needed. With this aim, the IFAE and UAB institutes are building a specific Raman lidar.
For the optical module, we have foreseen to read-out from the...
Dr
Dusan Mandat
(Institute of Physics of Academy of Science of The Czech Republic)
11/06/2013 15:15
Poster contributions
Poster
FRAM (F/Photometric Robotic Atmospheric Monitor) is a small optical telescope located at the Pierre Auger Observatory equipped with two CCD cameras with Johnson-Bessel UBVRI filters. We will present its observation program - spanning from the measurements of wavelength dependence of extinction (Angstrom coefficient) using the Landolt fields of standard stars, through the rapid monitoring of...
Dr
Bianca Keilhauer
(Karlsruhe Institute of Technology)
11/06/2013 15:20
Poster contributions
Poster
A good knowledge of atmospheric parameters is necessary for the reconstruction of air showers, especially with the fluorescence technique. The Global Data Assimilation System (GDAS) provides altitude-dependent profiles of temperature, pressure, humidity and several other state variables. Every three hours, a new data set is available for the entire globe. These GDAS data are now used in the...
Dr
Karim Louedec
(LPSC, CNRS/IN2P3)
11/06/2013 15:25
Poster contributions
Poster
Aerosols play an important role in the attenuation of UV fluorescence light originated when cosmic rays cross the atmosphere, interacting with the atmospheric nitrogen molecules. This light is recorded by the fluorescence detector (FD) of the Pierre Auger Observatory (www.auger.org), composed of 27 telescopes distributed in 4 stations. In one of these stations, named Coihueco (35° 06’ 52.9’’...
