Michel Curé

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We present 13 epochs of near-infrared (0.8–5 μm) spectroscopic observations of the pre-transitional, " gapped " disk system in SAO 206462 (=HD 135344B). 0.8446 μm line of O i) along with continuum measurements made near the standard J, H, K, and L photometric bands were measured. A mass accretion rate of approximately 2 × 10 −8 M yr −1 was derived from the(More)
The effects of rapid rotation and bi–stability upon the density contrast between the equatorial and polar directions of a B[e] supergiant are re–investigated. Based upon a new slow solution for different high rotational radiation driven winds (Curé 2004) and the fact that bi–stability allows a change in the line–force parameters (α, k, and δ), the(More)
The theory of radiation driven wind including stellar rotation is reexamined. After a suitable change of variables, a new equation for the mass loss rate is derived analytically. The solution of this equation remains within 1% confidence when compared with numerical solutions. Also, a non-linear equation for the position of the critical (singular) point is(More)
The topological analysis from Bjorkman (1995) for the standard model that describes the winds from hot stars by Castor, Abbott & Klein (1975) has been extended to include the effect of stellar rotation and changes in the ionization of the wind. The differential equation for the momentum of the wind is non–linear and transcendental for the velocity gradient.(More)
Context. Our knowledge of the presence and the role of magnetic fields in intermediate-mass pre-main-sequence stars remains very poor. Aims. We present the magnetic properties of four Herbig Ae/Be stars that have not been previously studied in detail. Methods. Our results for the three Herbig Ae/Be stars HD 97048, HD 150193, and HD 176386 are based on(More)
Context. Recently, evidence for the presence of weak magnetic fields in Herbig Ae/Be stars has been found in several studies. Aims. We seek to expand the sample of intermediate-mass pre-main sequence stars with circular polarization data to measure their magnetic fields, and to determine whether magnetic field properties in these stars are correlated with(More)
  • S Hubrig, Schöller, I Savanov, R V Yudin, M A Pogodin, St ˇ Stefl +2 others
  • 2009
Key words polarization – stars: early-type – stars: magnetic fields We report the results of our search for magnetic fields in a sample of 16 field Be stars, the binary emission-line B-type star υ Sgr, and in a sample of fourteen members of the open young cluster NGC 3766 in the Carina spiral arm. The sample of cluster members includes Be stars, normal(More)
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