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19932026
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118 papers · 1 filter

astro-ph2008★ 140 cited

Fermi LAT Observations of the Vela Pulsar

A. A. Abdo

The Vela pulsar is the brightest persistent source in the GeV sky and thus is the traditional first target for new gamma-ray observatories. We report here on initial Fermi Large Ar…

astro-ph2008★ 62 cited

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…

astro-ph2008★ 130 cited

Diagnoses to unravel secular hydrodynamical processes in rotating main sequence stars

T. Decressin, S. Mathis, A. Palacios +4

(Abridged) We present a detailed analysis of the main physical processes responsible for the transport of angular momentum and chemical species in the radiative regions of rotating…

astro-ph2008★ 71 cited

Properties of WNh stars in the Small Magellanic Cloud: evidence for homogeneous evolution

F. Martins, D. J. Hillier, J. C. Bouret +4

We derive the physical properties of three WNh stars in the SMC to constrain stellar evolution beyond the main sequence at low metallicity and to investigate the metallicity depend…

astro-ph2008★ 34 cited

Lithium abundances in exoplanet-host stars : modelling

M. Castro, S. Vauclair, O. Richard +1

Aims. Exoplanet-host stars (EHS) are known to present superficial chemical abundances different from those of stars without any detected planet (NEHS). EHS are, on the average, ove…

astro-ph2008★ 638 cited

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…