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
59 papers · 2 filters
High brightness temperatures and circular polarisation in extra-galactic radio sources
J. G. Kirk, O. Tsang
Some rapidly variable extra-galactic radio sources show very high brightness temperatures T_B>10^{12}K and high degrees of circular polarisation (1%). Standard synchrotron models t…
A detailed spectral and morphological study of the gamma-ray supernova remnant RX J1713.7-3946 with H.E.S.S
The HESS Collaboration, F. Aharonian
We present results from deep observations of the Galactic shell-type supernova remnant (SNR) RX J1713.7-3946 (also known as G347.3-0.5) conducted with the complete H.E.S.S. array i…
New evidence for strong nonthermal effects in Tycho's supernova remnant
H. J. Voelk, E. G. Berezhko, L. T. Ksenofontov
For the case of Tycho's supernova remnant (SNR) we present the relation between the blast wave and contact discontinuity radii calculated within the nonlinear kinetic theory of cos…
A Smart Pixel Camera for future Cherenkov Telescopes
German Hermann, Svenja Carrigan, Bernhard Glück +1
The Smart Pixel Camera is a new camera for imaging atmospheric Cherenkov telescopes, suited for a next generation of large multi-telescope ground based gamma-ray observatories. The…
Early-Time Observations of the GRB 050319 Optical Transient
R. M. Quimby, E. S. Rykoff, S. A. Yost +18
We present the unfiltered ROTSE-III light curve of the optical transient associated with GRB 050319 beginning 4 s after the cessation of gamma-ray activity. We fit a power-law func…
Next generation of IACT arrays: scientific objectives versus energy domains
Felix Aharonian
Several key motivations and perspectives of ground based gamma-ray astronomy are discussed in the context of the specifics of detection techniques and scientific topics/objectives…
HESS J1825-137: A pulsar wind nebula associated with PSR B1823-13?
O. C. de Jager, S. Funk, J. Hinton
HESS J1825-137 was detected with a significance of 8.1 in the Galactic Plane survey conducted with the H.E.S.S. instrument in 2004. Both HESS J1825-137 and the X-ray pulsar win…
The H.E.S.S. survey of the Inner Galaxy in very high-energy gamma-rays
The HESS Collaboration, F. Aharonian
We report on a survey of the inner part of the Galactic Plane in very high energy gamma-rays, with the H.E.S.S. Cherenkov telescope system. The Galactic Plane between +-30deg in lo…
A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7
HESS Collaboration, F. A. Aharonian
We report on a possible association of the recently discovered very high-energy -ray source HESS J1825--137 with the pulsar wind nebula (commonly referred to as G 18.0--0.7) of…
The X-ray Jet in Centaurus A: Clues on the Jet Structure and Particle Acceleration
Jun Kataoka, Lukasz Stawarz, Felix Aharonian +3
We report detailed studies of the X-ray emission from the kpc scale jet in the nearest active galaxy, Cen A. 41 compact sources were found within the jet, 13 of which were newly id…
Dissipation of Magnetohydrodynamic Waves on Energetic Particles: Impact on Interstellar Turbulence and Cosmic Ray Transport
V. S. Ptuskin, I. V. Moskalenko, F. C. Jones +2
The physical processes involved in diffusion of Galactic cosmic rays in the interstellar medium are addressed. We study the possibility that the nonlinear MHD cascade sets the powe…
The high-energy gamma-ray light curve of PSR B1259 -63
J. G. Kirk, Lewis Ball, S. Johnston
The high-energy gamma-ray light curve of the binary system PSR B1259 -63, is computed using the approach that successfully predicted the spectrum at periastron. The simultaneous IN…
Gamma-rays from PSR B1259 -63
J. G. Kirk, Lewis Ball, S. Johnston
The high-energy gamma-ray emission discovered using the H.E.S.S. telescopes from the binary system PSR B1259 -63, is modelled using an extension of the approach that successfully p…
Radiative Processes In Extragalactic Large-Scale Jets
L. Stawarz
About one thousand extragalactic large-scale jets are known, and a few tens of them are confirmed sources of infrared, optical, or X-ray photons. Multiwavelength emission comming d…
Forced oscillations in a hydrodynamical accretion disk and QPOs
J. Petri
This is the second of a series of papers aimed to look for an explanation on the generation of high frequency quasi-periodic oscillations (QPOs) in accretion disks around neutron s…
Optical Lightcurve & Cooling Break of GRB 050502A
S. A. Yost, K. Alatalo, E. S. Rykoff +29
We present lightcurves of the afterglow of GRB050502A, including very early data at t-t_{GRB} < 60s. The lightcurve is composed of unfiltered ROTSE-IIIb optical observations from 4…
Simple Model of the Outflow from Starburst Galaxies: Application to Radio Observations
V. N. Zirakashvili, H. J. Voelk
We present an analytical model for the hydrodynamic outflow from the disk of a starburst galaxy. The model is used to calculate the cosmic ray propagation and the radio intensity d…
A toy model for coupling accretion disk oscillations to the neutron star spin
J. Petri
Lee, Abramowicz & Kluzniak (2004) demonstrated numerically that rotation of neutron star couples with oscillations of its accretion disk, and excites resonances. No specific coupli…
Prompt Optical Detection of GRB 050401 with ROTSE-IIIa
E. S. Rykoff, S. A. Yost, H. A. Krimm +20
The ROTSE-IIIa telescope at Siding Spring Observatory, Australia, detected prompt optical emission from Swift GRB 050401. In this letter, we present observations of the early optic…
Dependence of the gamma-ray emission from SN 1006 on the astronomical parameters
L. T. Ksenofontov, E. G. Berezhko, H. J. Voelk
We use nonlinear kinetic theory to study the remnant dynamics and the particle acceleration as well as the properties of the nonthermal emission from the supernova remnant SN 1006.…
Discovery of very high energy gamma-rays associated with an X-ray binary
H. E. S. S. Collaboration, :, F. Aharonian
X-ray binaries are composed of a normal star in orbit around a neutron star or stellar-mass black hole. Radio and X-ray observations have led to the presumption that some X-ray bin…
Microquasar LS 5039: a TeV gamma-ray emitter and a potential TeV neutrino source
Felix A. Aharonian, Luis A. Anchordoqui, Dmitry Khangulyan +1
The recent detection of TeV gamma-rays from the microquasar LS 5039 by HESS is one of the most exciting discoveries of observational gamma-ray astronomy in the very high energy reg…
A low level of extragalactic background light as revealed by gamma-rays from blazars
H. E. S. S. Collaboration, :, F. Aharonian
The diffuse extragalactic background light consists of the sum of the starlight emitted by galaxies through the history of the Universe, and it could also have an important contrib…
On the role of injection in kinetic approaches to nonlinear particle acceleration at non relativistic shocks
Stefano Gabici, Pasquale Blasi, Giulia Vannoni
The dynamical reaction of the particles accelerated at a shock front by the first order Fermi process can be determined within kinetic models that account for both the hydrodynamic…