Maike Kunnas
(University of Hamburg)
03/08/2015, 11:00
GA-IN
Oral contribution
For observation of extensive air showers from gamma rays and cosmic rays, shower front sampling arrays (non-imaging technique or timing-arrays) provide good core position, energy and angular resolution while covering a large area and posessing a wide field of view, yielding good sensitivity at the highest energies. However, the gamma-hadron separation power of this method is only poor compared...
Mr
Thomas Murach
(Humboldt-Universität zu Berlin)
03/08/2015, 11:15
GA-IN
Oral contribution
The H.E.S.S. experiment entered its second phase with the addition of a new, large telescope called CT5 that has been added to the centre of the existing array of four smaller telescopes. Because of its larger mirror area the new telescope is able to detect fainter air showers, thereby lowering the energy threshold of the array from O(100 GeV) down to a few tens of GeV. Due to the power law...
Josh Cardenzana
03/08/2015, 11:30
GA-IN
Oral contribution
The current standards for estimating the background contribution in IACT data analysis are the ring background model and the reflected region methods. However, these two techniques are poorly suited for analyses of sources with extensions comparable to the detector’s field of view (greater than ~1°). Nearby pulsar wind nebulae, supernova remnants interacting with molecular clouds, and dark...
Sean Griffin
03/08/2015, 11:45
GA-IN
Oral contribution
The presence of moonlight is usually a major limiting factor for Imaging Atmospheric Cherenkov Telescopes due to the high sensitivity of the camera photomultiplier tubes (PMTs). In their standard configuration, the extra noise limits the sensitivity of the experiment to gamma-ray signals and the higher PMT currents also accelerates PMT aging. Since fall 2012, observations have been carried out...
Adrian Biland
(Eidgenossische Technische Hochschule Zurich (ETH))
03/08/2015, 12:00
GA-IN
Oral contribution
The First G-APD Cherenkov Telescope (FACT) is pioneering the usage of
solid state photosensors (G-APD, also known as SiPM). The 1440 pixel
camera is installed in a 10m$^2$ refurbished HEGRA telescope on
the Canary Island La Palma.
Physics data-taking with FACT started in October 2011, few hours after
installation of the camera. Since Summer 2012, FACT is operated remotely
without the...
Julian Sitarek
(University of Łódź)
03/08/2015, 12:15
GA-IN
Oral contribution
MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes
located in the Canary island of La Palma, Spain. During summer 2011
and 2012 it underwent a major upgrade. The main subsystems upgraded
were the MAGIC-I camera and its trigger system and the readout system
of both telescopes. We use observations of the Crab Nebula taken at
low and medium zenith angles to assess the key...
