Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.6k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.4k papers
- Heidelberg UniversityDE1.3k papers
- Max Planck SocietyDE1.1k papers
- University of ZurichCH1.1k papers
- European Organization for Nuclear ResearchCH1k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR990 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL973 papers
- University of Maryland, College ParkUS940 papers
- Rutherford Appleton LaboratoryGB939 papers
- Institute for Nuclear ResearchRU922 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT912 papers
546 papers · 1 filter
Vetoing atmospheric neutrinos in a high energy neutrino telescope
Stefan Schönert, Thomas K. Gaisser, Elisa Resconi +1
We discuss the possibility to suppress downward atmospheric neutrinos in a high energy neutrino telescope. This can be achieved by vetoing the muon which is produced by the same pa…
Imaging Very High Energy Gamma-Ray Telescopes
Heinrich J. Voelk, Konrad Bernloehr
The technique of gamma-ray astronomy at very high energies (VHE: > 100 GeV) with ground-based imaging atmospheric Cherenkov telescopes is described, the H.E.S.S. array in Namibia s…
Steady-State Solutions in Nonlinear Diffusive Shock Acceleration
B. Reville, J. G. Kirk, P. Duffy
Stationary solutions to the equations of non-linear diffusive shock acceleration play a fundamental role in the theory of cosmic-ray acceleration. Their existence usually requires…
Capability of Cherenkov Telescopes to Observe Ultra-fast Optical Flares
C. Deil, W. Domainko, G. Hermann +4
The large optical reflector (~ 100 m^2) of a H.E.S.S. Cherenkov telescope was used to search for very fast optical transients of astrophysical origin. 43 hours of observations targ…
Simultaneous H.E.S.S. and Chandra observations of Sagittarius A* during an X-ray flare
H. E. S. S. Collaboration, :, F. Aharonian
The rapidly varying (~10 minute timescale) non-thermal X-ray emission observed from Sgr A* implies that particle acceleration is occuring close to the event horizon of the supermas…
Non thermal emission from microquasar/ISM interaction
P. Bordas, V. Bosch-Ramon, J. M. Paredes +1
The interaction of microquasar jets with their environment can produce non-thermal radiation as is the case for extragalactic outflows impacting on their surroundings. We have deve…
Nuclear Masses in Astrophysics
Christine Weber, Klaus Blaum, Hendrik Schatz
Among all nuclear ground-state properties, atomic masses are highly specific for each particular combination of N and Z and the data obtained apply to a variety of physics topics.…
Very high energy gamma-ray observations of the galaxy clusters Abell 496 and Abell 85 with H.E.S.S
H. E. S. S. Collaboration, :, F. Aharonian
Aims: The nearby galaxy clusters Abell 496 and Abell 85 are studied in the very high energy (VHE, E > 100 GeV) band to investigate VHE cosmic rays (CRs) in this class of objects wh…
A Trigger and Readout Scheme for future Cherenkov Telescope Arrays
G. Hermann, C. Bauer, C. Foehr +3
The next generation of ground-based gamma-ray observatories, such as e.g. CTA, will consist of about 50-100 telescopes, and cameras with in total ~100000 to ~200000 channels. The t…
Study of the Spectral and Temporal Characteristics of X-Ray Emission of the Gamma-Ray Binary LS 5039 with Suzaku
T. Takahashi, T. Kishishita, Y. Uchiyama +6
We report on the results from Suzaku broadband X-ray observations of the galactic binary source LS5039. The Suzaku data, which have continuous coverage of more than one orbital per…
Two-Dimensional particle-in-cell simulations of the nonresonant, cosmic-ray driven instability in SNR shocks
Yutaka Ohira, Brian Reville, John G. Kirk +1
In supernova remnants, the nonlinear amplification of magnetic fields upstream of collisionless shocks is essential for the acceleration of cosmic rays to the energy of the "knee"…
Hadronic versus leptonic origin of the gamma-ray emission from Supernova Remnant RX J1713.7-3946
E. G. Berezhko, H. J. Völk
Aims. The hadronic vs. leptonic origin of the gamma-ray emission from the Supernova Remnant RX J1713.7-3946 is discussed both in the light of new observations and from a theoretica…
Clues to unveil the emitter in LS 5039: powerful jets vs colliding winds
V. Bosch-Ramon, D. Khangulyan, F. A. Aharonian
LS 5039 is among the most interesting VHE sources in the Galaxy. Two scenarios have been put forward to explain the observed TeV radiation: jets vs pulsar winds. The source has bee…
Very-High Energy Gamma-Ray Flux Limits for Nearby Active Galactic Nuclei
T. Herr, W. Hofmann
Combining the results of targeted observations, H.E.S.S. has accumulated a large amount of extra-galactic exposure at TeV energies. Due to its large field of view a considerable pa…
On the nature of HESS J1503-582 revealed by the H.E.S.S. experiment: Coincidence with a FVW?
M. Renaud, P. Goret, R. C. G. Chaves
The H.E.S.S. survey of the inner Galaxy in the very-high-energy gamma-ray domain has led to the discovery of many extended sources, some of which do not appear to be associated wit…
Studying the properties of the radio emitter in LS 5039
V. Bosch-Ramon
LS 5039 is an X-ray binary that presents non-thermal radio emission. The radiation at GHz is quite steady and optically thin, consisting on a dominant core plus an extende…
Very High Energy Gamma-Ray Observations of the Galactic Centre Region
Christopher van Eldik
Recent progress in pushing the sensitivity of the Imaging Atmospheric Cherenkov Technique into the 10 mCrab regime has enabled first sensitive observations of the innermost few 100…
The energy spectrum of cosmic-ray electrons at TeV energies
H. E. S. S. Collaboration, :, F. Aharonian
The very large collection area of ground-based gamma-ray telescopes gives them a substantial advantage over balloon/satellite based instruments in the detection of very-high-energy…
On the plasma temperature in supernova remnants with cosmic-ray modified shocks
L. O'C. Drury, F. A. Aharonian, D. Malyshev +1
Context: Multiwavelength observations of supernova remnants can be explained within the framework of the diffusive shock acceleration theory, which allows effective conversion of t…
The Spectral Shape and Photon Fraction as Signatures of the GZK-Cutoff
Andrew M. Taylor, Felix A. Aharonian
With the prospect of measuring the fraction of arriving secondary photons, produced through photo-pion energy loss interactions of ultra high energy cosmic ray (UHECR) protons with…
CTA simulations with CORSIKA/sim_telarray
Konrad Bernloehr
While current atmospheric Cherenkov installations consist of only a few telescopes each, future installations will be far more complex. Monte Carlo simulations have become an essen…
A radio and near-infrared mini-survey of the MGRO J2019+37 complex
J. M. Paredes, J. Marti, C. H. Ishwara-Chandra +9
MGRO J2019+37 is an unidentified source of very high energy gamma-rays originally reported by the MILAGRO collaboration as the brightest TeV source in the Cygnus region. Despite th…
The cosmological consequence of an obscured AGN population on the radiation efficiency
Alejo Martinez-Sansigre, Andrew M. Taylor
In light of recent indications for a large population of obscured active galactic nuclei (AGNs), we revisit the mean radiation efficiency from accretion onto supermassive black hol…
Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304
H. E. S. S. Collaboration, :, F. Aharonian
In the past few decades, several models have predicted an energy-dependence of the speed of light in the context of quantum gravity. For cosmological sources such as active galaxie…