Orateur
Dr
Andreas Horneffer
(Dep. Astrophysics, IMAPP, RU Nijmegen)
Description
LOFAR is a new radio telescope that is being built in the Netherlands.
The core of LOFAR will have a high density of antennas, the central "superterp"
with nearly 600 antennas on a circular area of about 400m diameter, and more
stations close by. In addition, the calibration on multiple astronomical objects
will give an excellent calibration with an expected phase error of less than
50 ps. Together this will give LOFAR a unique sensitivity for the study of the
radio emission of single air showers.
LOFAR is currently being set up with more than half of the stations already
in the field. At the same time we are working on a triggering system for air
showers and other radio transients, and on the analysis pipeline to extract
air shower parameters from the recorded waveform data.
Triggering on the radio emission from air showers means detecting a nano-second
radio pulse and discriminating real events from radio interference. At LOFAR,
we will search for pulses in the digital data stream and use pulse-shape
parameters to discriminate real events from background. We will also have a
small scintillator array to test and confirm the performance of the radio-only
trigger and to provide additional measurements for the air shower
reconstruction and analysis.
Auteurs principaux
Dr
Andreas Horneffer
(Dep. Astrophysics, IMAPP, RU Nijmegen)
M.
Arthur Corstanje
(Dep. Astrophysics, IMAPP, RU Nijmegen)
Co-auteurs
Dr
Clancy W. James
(Dep. Astrophysics, IMAPP, RU Nijmegen)
Dr
Heino Falcke
(Dep. Astrophysics, IMAPP, RU Nijmegen; ASTRON, Dwingeloo)
Dr
Joerg Hoerandel
(Dep. Astrophysics, IMAPP, RU Nijmegen)
Dr
Kalpana Singh
(Kernfysisch Versneller Instituut, Groningen)
M.
Lars Baehren
(Dep. Astrophysics, IMAPP, RU Nijmegen)
Dr
Maaijke Mevius
(Kernfysisch Versneller Instituut, Groningen)
M.
Martin van den Akker
(Dep. Astrophysics, IMAPP, RU Nijmegen)
Dr
Olaf Scholten
(Kernfysisch Versneller Instituut, Groningen)
M.
Sander ter Veen
(Dep. Astrophysics, IMAPP, RU Nijmegen)
M.
Satyendra Thoudam
(Dep. Astrophysics, IMAPP, RU Nijmegen)
