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24 papers · 2 filters
Measurement of the atmospheric muon flux with a 4 GeV threshold in the ANTARES neutrino telescope
ANTARES collaboration
A new method for the measurement of the muon flux in the deep-sea ANTARES neutrino telescope and its dependence on the depth is presented. The method is based on the observation of…
Detection of Gamma Rays From a Starburst Galaxy
The HESS Collaboration, F. Acero
Starburst galaxies exhibit in their central regions a highly increased rate of supernovae, the remnants of which are thought to accelerate energetic cosmic rays up to energies of ~…
Spin-down rate and inferred dipole magnetic field of the soft gamma-ray repeater SGR 1627-41
P. Esposito, M. Burgay, A. Possenti +11
Using Chandra data taken on 2008 June, we detected pulsations at 2.59439(4) s in the soft gamma-ray repeater SGR 1627-41. This is the second measurement of the source spin period a…
A synchrotron self-Compton model for the VHE gamma-ray emission from Cen A
J. -P. Lenain, M. C. Medina, C. Boisson +3
The H.E.S.S. experiment has reported the detection of very high energy (VHE: E>100 GeV) gamma-ray emission from the well-known radio-galaxy Cen A. Following this discovery, we refi…
Unidentified Gamma-Ray Sources as Ancient Pulsar Wind Nebulae
O. C. de Jager, S. E. S. Ferreira, A. Djannati-Ataï +6
In this paper we explore the evolution of a PWN while the pulsar is spinning down. An MHD approach is used to simulate the evolution of a composite remnant. Particular attention is…
Chandra Localizations and Spectra of INTEGRAL Sources in the Galactic Plane: The Cycle 9 Sample
John A. Tomsick, Sylvain Chaty, Jerome Rodriguez +2
We report on 0.3-10 keV X-ray observations by the Chandra X-ray Observatory of the fields of 22 sources that were discovered as hard X-ray (20-100 keV) sources by the INTEGRAL sate…