Search Results - "BRIQUET, M"
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Spectroscopic survey of Kepler stars. ★ I. HERMES/Mercator observations of A- and F-type stars
Published in Monthly notices of the Royal Astronomical Society (01-07-2015)“…The Kepler space mission provided near-continuous and high-precision photometry of about 207 000 stars, which can be used for asteroseismology. However, for…”
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Atmospheric parameters of 169 F-, G-, K- and M-type stars in the Kepler field
Published in Monthly notices of the Royal Astronomical Society (01-09-2013)“…The asteroseismic and planetary studies, like all research related to stars, need precise and accurate stellar atmospheric parameters as input. We aim at…”
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Kepler's first view of O-star variability: K2 data of five O stars in Campaign 0 as a proof of concept for O-star asteroseismology
Published in Monthly notices of the Royal Astronomical Society (11-10-2015)“…We present high-precision photometric light curves of five O-type stars observed with the refurbished Kepler satellite during its Campaign 0. For one of the…”
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KIC 4768731: a bright long-period roAp star in the Kepler field
Published in Monthly notices of the Royal Astronomical Society (01-10-2015)“…We report the identification of 61.45 d−1 (711.2 μHz) oscillations, with amplitudes of 62.6 μmag, in KIC 4768731 (HD 225914) using Kepler photometry. This…”
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Multisite spectroscopic seismic study of the β Cep star V2052 Ophiuchi: inhibition of mixing by its magnetic field
Published in Monthly notices of the Royal Astronomical Society (21-11-2012)“…ABSTRACT We used extensive ground‐based multisite and archival spectroscopy to derive observational constraints for a seismic modelling of the magnetic β Cep…”
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Kepler observations of the variability in B-type stars
Published in Monthly notices of the Royal Astronomical Society (01-06-2011)“…The analysis of the light curves of 48 B-type stars observed by Kepler is presented. Among these are 15 pulsating stars, all of which show low frequencies,…”
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An asteroseismic study of the β Cephei star θ Ophiuchi: constraints on global stellar parameters and core overshooting
Published in Monthly notices of the Royal Astronomical Society (11-11-2007)“…We present a seismic study of the β Cephei star θ Ophiuchi. Our analysis is based on the observation of one radial mode, one rotationally split ℓ= 1 triplet…”
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DETECTION OF SOLAR-LIKE OSCILLATIONS, OBSERVATIONAL CONSTRAINTS, AND STELLAR MODELS FOR θ CYG, THE BRIGHTEST STAR OBSERVED BY THE KEPLER MISSION
Published in The Astrophysical journal (01-11-2016)“…ABSTRACT θ Cygni is an F3 spectral type magnitude V = 4.48 main-sequence star that was the brightest star observed by the original Kepler spacecraft mission…”
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Abundance analysis, spectral variability, and search for the presence of a magnetic field in the typical PGa star HD 19400
Published in Monthly notices of the Royal Astronomical Society (21-08-2014)“…The aim of this study is to carry out an abundance determination, to search for spectral variability and for the presence of a weak magnetic field in the…”
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A multisite photometric study of two unusual β Cep stars: the magnetic V2052 Oph and the massive rapid rotator V986 Oph
Published in Monthly notices of the Royal Astronomical Society (11-08-2012)“…Abstract We report a multisite photometric campaign for the β Cep stars V2052 Oph and V986 Oph. 670 h of high-quality differential photoelectric Strömgren,…”
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An asteroseismic study of the β Cephei star 12 Lacertae: multisite spectroscopic observations, mode identification and seismic modelling
Published in Monthly notices of the Royal Astronomical Society (01-07-2009)“…We present the results of a spectroscopic multisite campaign for the β Cephei star 12 (DD) Lacertae. Our study is based on more than thousand high–resolution…”
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12
CoRoT photometry and high-resolution spectroscopy of the interacting eclipsing binary AU Monocerotis
Published in Monthly notices of the Royal Astronomical Society (01-01-2010)“…Analyses of very accurate CoRoT space photometry, past Johnson V photoelectric photometry and high-resolution echelle spectra led to the determination of…”
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Extensive study of HD 25558, a long-period double-lined binary with two SPB components
Published in Monthly notices of the Royal Astronomical Society (11-03-2014)“…We carried out an extensive observational study of the Slowly Pulsating B (SPB) star, HD 25558. The 2000 spectra obtained at different observatories, the…”
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An asteroseismic study of the β Cephei star θ Ophiuchi: spectroscopic results
Published in Monthly notices of the Royal Astronomical Society (11-09-2005)“…We present the results of a detailed analysis of 121 ground-based high-resolution, high signal-to-noise ratio spectroscopic measurements spread over 3 yr for…”
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New spectroscopic and polarimetric observations of the A0 supergiant HD 92207
Published in Astronomische Nachrichten (01-03-2015)“…Our recent search for the presence of a magnetic field in the bright early A‐type supergiant HD 92207 using FORS 2 in spectropolarimetric mode revealed the…”
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Asteroseismology of the β Cephei star ν Eridani - III. Extended frequency analysis and mode identification
Published in Monthly notices of the Royal Astronomical Society (01-06-2004)“…ABSTRACT Using the large photometric and spectroscopic data sets of the ν Eridani multisite campaign given in our two recent papers (Aerts et al. and Handler…”
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Spectroscopic variability and magnetic fields of HgMn stars
Published in Astronomische Nachrichten (01-12-2011)“…The discovery of exotic abundances, chemical inhomogeneities, and weak magnetic fields on the surface of late B‐type primaries in spectroscopic binaries has…”
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An asteroseismic study of the Cephei star Ophiuchi: constraints on global stellar parameters and core overshooting
Published in Monthly notices of the Royal Astronomical Society (11-11-2007)“…We present a seismic study of the [beta] Cephei star [theta] Ophiuchi. Our analysis is based on the observation of one radial mode, one rotationally split…”
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Magnetic field studies of massive main sequence stars
Published in Astronomische Nachrichten (01-12-2011)“…We report on the status of our spectropolarimetric observations of massive stars. During the last years, we have discovered magnetic fields in many objects of…”
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Migration barriers protect indigenous brown trout (Salmo trutta) populations from introgression with stocked hatchery fish
Published in Conservation genetics (01-03-2005)“…Brown trout populations in the Belgian rivers Scheldt and Meuse have been intensively stocked in the past decades, often with material of uncertain origin…”
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