Spectroscopic determination of the fundamental parameters of 66 B-type stars in the field-of-view of the CoRoT satellite

@article{Lefever2010SpectroscopicDO,
  title={Spectroscopic determination of the fundamental parameters of 66 B-type stars in the field-of-view of the CoRoT satellite},
  author={Karolien Lefever and Joachim Puls and Thierry Morel and Conny Aerts and Leen Decin and Maryline Briquet},
  journal={Astronomy and Astrophysics},
  year={2010},
  volume={515},
  pages={1-26}
}
Aims. We determine the fundamental parameters of a sample of B stars with apparent visual magnitudes brighter than 8 in the fieldof-view of the CoRoT space mission, from high-resolution spectroscopy. Methods. We developed an automatic procedure for the spectroscopic analysis of B-type stars with winds, based on an extensive grid of FASTWIND model atmospheres. We use the equivalent widths and/or the line profile shapes of continuum normalized hydrogen, helium, and silicon line profiles to… 
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References

SHOWING 1-10 OF 66 REFERENCES
Bright OB stars in the Galaxy - IV. Stellar and wind parameters of early to late B supergiants
Context. B-type supergiants represent an important phase in the evolution of massive stars. Reliable estimates of their stellar and wind parameters, however, are scarce, especially at mid and late
Fundamental parameters of Be stars located in the seismology fields of COROT
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 seismology fields (64 Be
Fourier method of determining the rotational velocities in OB stars
Aims. We present a comprehensive study that applies the Fourier transform to a sample of O and early B-type stars (either dwarfs, giants, or supergiants) to determine their projected rotational
Quantitative H and K band spectroscopy of Galactic OB-stars at medium resolution
In this paper we have analyzed 25 Galactic O and early B-stars by means of H  and K  band spectroscopy, with the primary goal to investigate to what extent a lone near-IR spectroscopy is able to
Spectral analysis of early-type stars using a genetic algorithm based fitting method
We present the first automated fitting method for the quantita tive spectroscopy of O- and early B-type stars with stellar winds. The method combines the non-LTE stellar atmosphere codefastwind from
The VLT-FLAMES survey of massive stars: atmospheric parameters and rotational velocity distributions for B-type stars in the Magellanic Clouds ,
Aims. We aim to provide the atmospheric parameters and rotational velocities for a large sample of O- and early B-type stars, analysed in a homogeneous and consistent manner, for use in constraining
The VLT-FLAMES survey of massive stars: surface chemical compositions of B-type stars in the Magellanic Clouds
We present an analysis of high-resolution FLAMES spectra of approximately 50 early B-type stars in three young clusters at different metallicities, NGC 6611 in the Galaxy, N 11 in the Large
THE PHYSICAL PROPERTIES AND EFFECTIVE TEMPERATURE SCALE OF O-TYPE STARS AS A FUNCTION OF METALLICITY. III. MORE RESULTS FROM THE MAGELLANIC CLOUDS*
In order to better determine the physical properties of hot, massive stars as a function of metallicity, we obtained very high signal-to-noise ratio optical spectra of 26 O and early B stars in the
Statistical properties of a sample of periodically variable B-type supergiants. Evidence for opacity
Aims: We have studied a sample of 28 periodically variable B-type supergiants selected from the HIPPARCOS mission and 12 comparison stars covering the whole B-type spectral range. Our goal is to test
β Cep stars from a spectroscopic point of view
In this review we present the current status of line-profile-variation studies of β Cep stars. Such studies have been performed for 26 bright members of this class of pulsating stars in the past 25
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