Event calendar file
3-11 July 2007
Merida, Mexico
Mexico/General timezone
- icrc2007@icrc2007.unam.mx
Support
HE 1.3.A
Place
Location: Merida, Mexico
Room: Yucatan II+III+IV (Fiesta Americana)
Date:
from 4 Jul 12:45 to 7 Jul 09:10
Timetable | Contribution List
Displaying 12
contributions
out of
12
We present updated results for anisotropy searches in the direction of the
Galactic centre at energies in the EeV range. We use data from the Pierre
Auger Southern Observatory up to March, 2007. Present analyses are therefore
based on a substantially larger data set than our previous published results.
The larger statistics from the surface array allow for more precise measurements
as a
... More
Presented by Edivaldo SANTOS
on
4/7/2007
at
17:45
The characteristics relating to lateral and longitudinal development of EAS in the
energy region of 10**15 - 10**19 eV have been analyzed in the framework of the QGSJET
model and of mass composition of primary cosmic rays. It is found that at E0 >=
5x10**15 eV the mean mass composition of primary cosmic rays begins to vary as
indicated by a rise of <ln(A)> with increasing energy. The maximum
... More
Presented by Dr. Stanislav KNURENKO
on
6/7/2007
at
16:10
Extensive air showers are associated with transient radio emission, which could
provide a new mode of detection of UHECR with an important target volume and a high
duty cycle. The Codalema experiment has been set up and is running in the Radio
Observatory in Nançay, France, to investigate this possibility.
The apparatus is composed of an antenna array overlapped by a ground particle array.
A
... More
Presented by Dr. Didier LEBRUN
on
7/7/2007
at
13:42
For the conditions of KASCADE-Grande the lateral particle density at about 500 m
distance from the shower core S(500) has been shown by detailed simulation studies to
be an approximate energy estimator, being nearly independent of the mass of the
primary particle. This report presents some features of the S(500) observable of EAS
registered with the KASCADE-Grande array installed at Forschungs
... More
Presented by Dr. Iliana BRANCUS
on
6/7/2007
at
18:18
The EAS induced by ultra high energy cosmic rays excite the atmosphere which emits
fluorescence light. Images of showers in this light can be registered from large
distances,as narrow tracks, the intensity at a given level being proportional to the
shower energy deposited there. However, there is also Cherenkov light accompanying
the shower which, when scattered sideways, adds to the fluoresc
... More
Presented by Prof. Maria GILLER
on
6/7/2007
at
16:22
Traditionally, longitudinal shower profiles are reconstructed in
fluorescence light experiments by treating the Cherenkov light
contribution as background. In this talk we will argue that, due to
the universality of the energy spectra of electrons and positrons, both
fluorescence and Cherenkov light can be used simultaneously as signal
to infer the longitudinal shower development.
We pres
... More
Presented by Dr. Michael UNGER
on
7/7/2007
at
13:54
Inclined showers (i.e. showers with zenith angle above 40 degrees)
are registered by the KASCADE-Grande experiment, which is designed
to address fundamental questions about the origin, composition and
acceleration mechanisms of primary cosmic rays between $10^{14}$
and $10^{18}$ eV. Despite the aggravate reconstruction due to the
thin scintillation detectors used in KASCADE-G
... More
Presented by Dr. Juan Carlos ARTEAGA-VELAZQUEZ
on
6/7/2007
at
17:42
We use more than two years of data from the Pierre Auger
Observatory to search for anisotropies on large scales in
different energy windows above 1 EeV. We account for various
systematics in the acceptance, in particular due to weather
variations. We present the results of analyses and consistency
checks looking for patterns such as right ascension modulations.
Presented by Dr. Eric ARMENGAUD
on
4/7/2007
at
17:55
KASCADE-Grande is an extensive air shower experiment co-located to the original
KASCADE site at Forschungszentrum Karlsruhe, Germany. Main parts of the experiment
are the Grande array consisting of 37x10 sqm scintillation detectors spread over an
area of 700x700 sqm, the original KASCADE array with 252 stations covering 200x200
sqm with unshielded and shielded detectors, and additional muon tr
... More
Presented by Dr. Andreas HAUNGS
on
6/7/2007
at
18:06
The Grande array as main part of the KASCADE-Grande experiment consists of 37x10 sqm
scintillation detectors spread over an area of 700x700 sqm. Grande enables triggers
and reconstruction of primary cosmic rays in the energy range of ~30 PeV to 1 EeV.
This contribution discusses the reconstruction of the shower size spectrum, i.e. the
total number of charged particles. The KASCADE-Grande set-
... More
Presented by Dr. Federico DI PIERRO
on
6/7/2007
at
17:30
KASCADE-Grande is a multi detector setup for the investigation of extensive air
showers in the primary energy range of the knee including energies around the
so-called second knee. With the data of the 700 x 700 sqm large Grande array shower
core position, shower direction, and the total number of electrons are reconstructed
for events with primary energy above 50 PeV.
Among others, the Grand
... More
Presented by Dr. Vitor DE SOUZA
on
6/7/2007
at
17:54
The principle of the CODALEMA experiment is based on an original approach for the
detection of radio transients associated with extensive air showers induced by ultra
high energy cosmic rays. Since September 2006, CODALEMA is under operation with a new
setup (technically described in another contribution to this conference) at the
Nancay Radio Observatory in France. It uses 16 broadband dipole
... More
Presented by Dr. Olivier RAVEL
on
7/7/2007
at
13:30
