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The seismology programme of CoRoT
E. Michel, A. Baglin, M. Auvergne +1
We introduce the main lines and specificities of the CoRoT Seismology Core Programme. The development and consolidation of this programme has been made in the framework of the CoRo…
Exploring the connection between the stellar wind and the non-thermal emission in LS 5039
V. Bosch-Ramon, C. Motch, M. Ribo +5
LS 5039 has been observed with several X-ray instruments so far. The source presents X-ray variability at orbital timescales in flux and photon index. The system harbors an O-type…
Discovery of a cluster of galaxies behind the Milky Way: X-ray and optical observations
R. Lopes de Oliveira, G. B. Lima Neto, C. Mendes de Oliveira +2
We report the discovery of Cl 2334+48, a rich cluster of galaxies in the Zone of Avoidance, identified in public images from the XMM-Newton archive. We present the main properties…
New Gamma Cas-like objects: X-ray and optical observations of SAO49725 and HD161103
Raimundo Lopes de Oliveira, Christian Motch, Frank Haberl +2
A growing number of early Be stars exhibit unusually hard X-ray spectra and luminosities intermediate between those typical of early type stars and those emitted by most Be/X-ray b…
X-ray and optical properties of new Gamma Cas-like objects discovered in X-ray surveys
Christian Motch, Raimundo Lopes de Oliveira, Ignacio Negueruela +2
A growing number of early Be stars discovered in X-ray surveys exhibit X-ray luminosities intermediate between those of normal stars and those of most Be/X-ray binaries in quiescen…
Fundamental parameters of Be stars located in the seismology fields of COROT
Yves Y. Fremat, Coralie Neiner, Anne-Marie Hubert +4
In preparation for the COROT space mission, we determined the fundamental parameters (spectral type, temperature, gravity, vsini) of the Be stars observable by COROT in its seismol…