Event calendar file
3-11 July 2007
Merida, Mexico
Mexico/General timezone
- icrc2007@icrc2007.unam.mx
Support
OG 2.2
Place
Location: Merida, Mexico
Room: Uxmal + Tulum (Holiday Inn)
Date:
6 Jul 08:30 - 10:06
Timetable | Contribution List
Displaying 8
contributions
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8
Observations with H.E.S.S. in 2004-2005 revealed a new source of very high-energy
(VHE) gamma-rays above 100 GeV -- HESS J1825-137 -- extending mainly to the south of
the energetic pulsar PSR B1823-13. While the direction of the VHE gamma-ray emission
with respect to the pulsar is similar to that of the asymmetric X-ray PWN G18.0-0.2
in this system, the RMS extension of HESS J1825--137 is >0.2
... More
Presented by Dr. Stefan FUNK
on
6/7/2007
at
14:06
In this work we study the individual contribution to diffuse $\gamma$-ray
emission from the secondary products in hadronic interactions generated by
cosmic rays (CRs), in addition to the contribution of neutral-pions via
the decay into two gamma rays. For that purpose we employ the Monte
Carlo particle collision code DPMJET3.04 to determine the multiplicity
spectra of various secondary p
... More
Presented by Prof. Martin POHL
on
6/7/2007
at
14:54
The H.E.S.S. source J1809-193 was discovered in 2006 in data of the Galactic Plane
survey, followed by several re-observations. It shows a hard gamma-ray spectrum and
the emission is clearly extended. Its vicinity to PSR J1809-1917, a high spin-down
luminosity pulsar powerful enough to drive the observed gamma-ray emission, makes it
a plausible candidate for a Pulsar Wind Nebula. On the other
... More
Presented by Nukri KOMIN
on
6/7/2007
at
13:54
Nonlinear kinetic theory of cosmic ray acceleration in supernova remnants is used to investigate the properties of
Kepler's SNR and, in particular, to predict the gamma-ray spectrum expected from this SNR. Observations of the
non-thermal radio and X-ray emission spectra as well as theoretical constraints for the total supernova explosion
energy are used to constrain the astronomical and part
... More
Presented by Dr. Leonid KSENOFONTOV
on
6/7/2007
at
13:30
The H.E.S.S. 2004-2005 survey of the Galactic Plane at energies above 200
GeV had revealed a number of pulsar wind nebulae candidates, including the
remarkable source HESS J1825-137. Spatially resolved spectral measurements
of this source gave the first evidence of an energy-dependent morphology
which was interpreted as being due to the cooling of relic electrons
cumulated throughout pul
... More
Presented by Dr. anne LEMIERE
on
6/7/2007
at
13:42
The binary system LS 5039 was serendipously with the High Energy
Stereoscopic system (H.E.S.S.)
during the scan of the inner galactic plane in 2004. Deeper observations
were carried out in 2005, and brought clear evidence for TeV emission
perodicity. This is the highest energy periodic source known so far.
The observed flux modulation is attributed to a modulated absorption
of the VHE gamma
... More
Presented by Mr. Mathieu DE NAUROIS
on
6/7/2007
at
14:30
Many of the recently discovered galactic very high-energy gamma-ray sources are
associated with Pulsar Wind Nebulae (PWN), which is the most populous source category
at TeV energies. Extended synchrotron nebulae seen from these objects in the X-ray
band is a footprint of the relativistic winds, generated by the young energetic
pulsars, which interact with the matter ejected by the supernova ex
... More
Presented by Dr. Alexander KONOPELKO
on
6/7/2007
at
14:18
PSR B 1259-63/SS2883 is a binary system consisting of a 48ms radio pulsar orbiting a
Be star with a period of 3.4y in a highly eccentric orbit (e = 0.87). The system was
first detected in very-high-energy (VHE) gamma-rays by H.E.S.S. around the last
periastron passage in March 2004 (March 7, 2004). These observations established PSR
B1259-63/SS2883 as the first variable galactic source in the
... More
Presented by Mr. Matthias KERSCHHAGGL
on
6/7/2007
at
14:42
