8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.4k papers
- Laboratoire Charles CoulombFR706 papers
- Laboratoire Univers et Particules de MontpellierFR535 papers
- Université Montpellier 2432 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR426 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR392 papers
- CEA Paris-SaclayFR326 papers
- Université Toulouse III - Paul SabatierFR284 papers
- École PolytechniqueFR279 papers
- Université Paris CitéFR275 papers
- Sorbonne UniversitéFR271 papers
- Laboratoire Leprince-RinguetFR265 papers
26 papers · 2 filters
First Stars XI. Chemical composition of the extremely metal-poor dwarfs in the binary CS 22876--032
J. I. González Hernández, P. Bonifacio, H. -G. Ludwig +15
We have used high-resolution, high-S/N ratio spectra from the UVES spectrograph at the ESO VLT telescope. Long-term radial-velocity measurements and broad-band photometry allow us…
HESS VHE Gamma-Ray Sources Without Identified Counterparts
HESS Collaboration, F. Aharonian
The detection of gamma rays in the very-high-energy (VHE) energy range (100 GeV--100 TeV) provides a direct view of the parent population of ultra-relativistic particles found in a…
Chemical composition of A and F dwarf members of the Coma Berenices open cluster
M. Gebran, R. Monier, O. Richard
Abundances of 18 chemical elements have been derived for 11 A (normal and Am) and 11 F dwarfs members of the Coma Berenices open cluster in order to set constraints on evolutionary…
Upper Limits from HESS AGN Observations in 2005-2007
HESS Collaboration, F. Aharonian
AIMS: Very high energy (VHE; E>100 GeV) gamma-ray studies were performed for 18 active galactic nuclei (AGN) from a variety of AGN classes. METHODS: VHE observations of a sample of…
New Companions for the lonely Crab? VHE emission from young pulsar wind nebulae revealed by H.E.S.S
H. E. S. S. Collaboration, :, A. Djannati-Atai +4
The deeper and more extended survey of the central parts of the Galactic Plane by H.E.S.S. during 2005-2007 has revealed a number of new point-like, as well as, extended sources. T…
On the growth of linear perturbations
David Polarski, Radouane Gannouji
We consider the linear growth of matter perturbations in various dark energy (DE) models. We show the existence of a constraint valid at between the background and dark energ…
MARCOS, a numerical tool for the simulation of multiple time-dependent non-linear diffusive shock acceleration
Gilles Ferrand, Turlough Downes, Alexandre Marcowith
We present a new code aimed at the simulation of diffusive shock acceleration (DSA), and discuss various test cases which demonstrate its ability to study DSA in its full time-depe…
Weak magnetic fields in Ap/Bp stars: Evidence for a dipole field lower limit and a tentative interpretation of the magnetic dichotomy
M. Auriere, G. A. Wade, J. Silvester +22
We have investigated a sample of 28 well-known spectroscopically-identified magnetic Ap/Bp stars, with weak, poorly-determined or previously undetected magnetic fields, with the ai…
Late stages of the evolution of A-type stars on the main sequence: comparison between observed chemical abundances and diffusion models for 8 Am stars of the Praesepe cluster
L. Fossati, S. Bagnulo, R. Monier +5
Aims. We aim to provide observational constraints on diffusion models that predict peculiar chemical abundances in the atmospheres of Am stars. We also intend to check if chemical…
Discovery of an X-ray nebula around PSR J1718-3825 and implications for the nature of the gamma-ray source HESS J1718-385
J. A. Hinton, S. Funk, S. Carrigan +5
Combined X-ray synchrotron and inverse-Compton gamma-ray observations of pulsar wind nebulae (PWN) may help to elucidate the processes of acceleration and energy loss in these syst…
New constraints on the Mid-IR EBL from the HESS discovery of VHE gamma rays from 1ES 0229+200
HESS Collaboration, F. Aharonian
AIMS: To investigate the very high energy (VHE: >100 GeV) gamma-ray emission from the high-frequency peaked BL Lac 1ES 0229+200. METHODS: Observations of 1ES 0229+200 at energies a…
Molecular fluorine chemistry in the early Universe
Denis Puy, Victor Dubrovich, Anton Lipovka +2
Some models of Big Bang nucleosynthesis suggest that very high baryon density regions were formed in the early Universe, and generated the production of heavy elements other than l…
First Stars VIII -- Enrichment of the neutron-capture elements in the early Galaxy
P. Francois, E. Depagne, V. Hill +12
Our aim is to measure accurate, homogeneous neutron-capture element abundances for the sample of 32 EMP giant stars studied earlier in this series, including 22 stars with [Fe/H] $…
Cool carbon stars in the halo: new very red or distant objects
N. Mauron, K. S. Gigoyan, T. R. Kendall
The goal of this paper is to present and analyse a new sample of cool carbon (C)stars located in the halo. Twenty three new C stars were discovered. Spectra are typical of N-type s…
WIMP Gamma Rays From the Galactic Center with GLAST and Accelerator Comparison
A. Morselli, A. Lionetto, E. Nuss
We will describe the prospects for detecting gamma-rays from WIMP's annihilation in the Galactic Center and we compare this search with the possibilities at LHC and with space anti…
The cosmic 6Li and 7Li problems and BBN with long-lived charged massive particles
Karsten Jedamzik
Charged massive particles (CHAMPs), when present during the Big Bang nucleosynthesis (BBN) era, may significantly alter the synthesis of light elements when compared to a standard…
Late-Type Red Supergiants: Too Cool for the Magellanic Clouds?
Emily M. Levesque, Philip Massey, K. A. G. Olsen +1
We have identified seven red supergiants (RSGs) in the Large Magellanic Cloud (LMC) and four RSGs in the Small Magellanic Cloud (SMC), all of which have spectral types that are con…
Atmospheric dynamics and the mass loss process in red supergiant stars
E. Josselin, B. Plez
Red supergiant stars represent a key phase in the evolution of massive stars. Recent radiative hydrodynamic simulations suggest that their atmospheres may be the location of large-…
Rigidity-dependent cosmic ray energy spectra in the knee region obtained with the GAMMA experiment
A. P. Garyaka, R. M. Martirosov, S. V. Ter-Antonyan +4
On the basis of the extensive air shower (EAS) data obtained by the GAMMA experiment, the energy spectra and elemental composition of the primary cosmic rays are derived in the 1-1…
Dark Matter Searche with GLAST
E. Nuss
The Gamma-Ray Large Area Space Telescope (GLAST), scheduled to be launched in fall 2007, is the next generation satellite for high-energy gamma-ray astronomy. The Large Area Telesc…
Discovery of a point-like very-high-energy gamma-ray source in Monoceros
F. Aharonian
The complex Monoceros Loop SNR/Rosette Nebula region contains several potential sources of very-high-energy (VHE) gamma-ray emission and two as yet unidentified high-energy EGRET s…
Detection of extended very-high-energy gamma-ray emission towards the young stellar cluster Westerlund 2
HESS Collaboration, F. Aharonian
Results from gamma-ray observations by the H.E.S.S. telescope array in the direction of the young stellar cluster Westerlund 2 are presented. Stereoscopic imaging of Cherenkov ligh…
Advances in secular magnetohydrodynamics of stellar interiors dedicated to asteroseismic spatial missions
S. Mathis, P. Eggenberger, T. Decressin +5
With the first light of COROT, the preparation of KEPLER and the future helioseismology spatial projects such as GOLF-NG, a coherent picture of the evolution of rotating stars from…
Search for Pulsed VHE Gamma-Ray Emission from Young Pulsars with H.E.S.S
The HESS Collaboration, F. Aharonian
We present the results of a search for pulsed very-high-energy (VHE) gamma-ray emission from young pulsars using data taken with the H.E.S.S. imaging atmospheric Cherenkov telescop…