CoRoT high-precision photometry of the B0.5 IV star HD 51756

@article{Papics2011CoRoTHP,
  title={CoRoT high-precision photometry of the B0.5 IV star HD 51756},
  author={P'eter I. P'apics and Maryline Briquet and Michel Auvergne and Conny Aerts and Pieter Degroote and Ewa Niemczura and Maja Vuvckovi'c and Kris Smolders and Ennio Poretti and Monica Rainer and Markus Hareter and Annie Baglin and Frédéric Baudin and Claude Catal{\`a} and Eric Michel and R'eza Samadi},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={528}
}
Context. OB stars are important constituents for the ecology of the Universe, and there are only a few studies on their pulsational properties detailed enough to provide important feedback on current evolutionary models. Aims. Our goal is to analyse and interpret the behaviour present in the CoRoT light curve of the B0.5 IV star HD 51756 observed during the second long run of the space mission and to determine the fundamental stellar parameters from ground-based spectroscopy gathered with the… 

High-precision CoRoT space photometry and fundamental parameter determination of the B2.5V star HD 48977

We present the CoRoT light curve of the bright B2.5V star HD 48977 observed during a short run of the mission in 2008, as well as a high-resolution spectrum gathered with the HERMES spectrograph at

Gravito-inertial and pressure modes detected in the B3 IV CoRoT target HD 43317

Context. OB stars are important building blocks of the Universe, but we have only a limited sample of them well understood enough from an asteroseismological point of view to provide feedback on the

Low-amplitude rotational modulation rather than pulsations in the CoRoT B-type supergiant HD 46769

Aims. We aim to detect and interpret photometric and spectroscopic variability of the bright CoRoT B-type supergiant target HD 46769 (V = 5:79). We also attempt to detect a magnetic field in the

ASTEROSEISMOLOGY OF THE NEARBY SN-II PROGENITOR: RIGEL. I. THE MOST HIGH-PRECISION PHOTOMETRY AND RADIAL VELOCITY MONITORING

Rigel (β Ori, B8 Ia) is a nearby blue supergiant displaying α Cyg type variability, and is one of the nearest Type II supernova progenitors. As such it is an excellent test bed to study the internal

Seismic modelling of the β Cephei star HD 180642 (V1449 Aquilae)

Context. We present modelling of the β Cep star HD 180642 based on its observational properties deduced from CoRoT and ground-based photometry as well as from time-resolved spectroscopy. Aims. We

PRECISE HIGH-CADENCE TIME SERIES OBSERVATIONS OF FIVE VARIABLE YOUNG STARS IN AURIGA WITH MOST *

To explore young star variability on a large range of timescales, we have used the MOST satellite to obtain 24 days of continuous, sub-minute cadence, high-precision optical photometry on a field of

ROTATIONAL AND CYCLICAL VARIABILITY IN γ CASSIOPEIAE. II. FIFTEEN SEASONS

The B0.5 IVe star γ Cas is of great interest because it is the prototype of a small group of classical Be stars having hard X-ray emission of unknown origin. We discuss results from ongoing B and V

Asteroseismology of High-Mass Stars: New Insights of Stellar Interiors With Space Telescopes

  • D. Bowman
  • Physics, Geology
    Frontiers in Astronomy and Space Sciences
  • 2020
Massive stars are important metal factories in the Universe. They have short and energetic lives, and many of them inevitably explode as a supernova and become a neutron star or black hole. In turn,

Rapidly rotating B stars with viscous Keplerian decretion disks

In the past decade, a consensus has emerged regarding the nature of clas- sical Be stars: They are very rapidly rotating main sequence B stars, which, through a still unknown, but increasingly

THE SURFACE NITROGEN ABUNDANCE OF A MASSIVE STAR IN RELATION TO ITS OSCILLATIONS, ROTATION, AND MAGNETIC FIELD

We have composed a sample of 68 massive stars in our galaxy whose projected rotational velocity, effective temperature, and gravity are available from high-precision spectroscopic measurements. The

References

SHOWING 1-10 OF 57 REFERENCES

The B0.5IVe CoRoT target HD 49330 - I. Photometric analysis from CoRoT data

Context. Be stars undergo outbursts producing a circumstellar disk from the ejected material. The beating of non-radial pulsations has been put forward as a possible mechanism of ejection. Aims. We

The B0.5 IVe CoRoT target HD 49330. II. Spectroscopic ground-based observations

Context. We present spectroscopic ground-based observations of the early Be star HD 49330 obtained simultaneously with the CoRoT-LRA1 run just before the burst observed in the CoRoT data. Aims.

An asteroseismic study of the O9V star HD 46202 from CoRoT space-based photometry

The O9V star HD46202, which is a member of the young open cluster NGC 2244, was observed by the CoRoT satellite in October/November 2008 during a short run of 34 days. From the very high-precision

Detection of frequency spacings in the young O-type binary HD 46149 from CoRoT photometry

Aims. Using the CoRoT space based photometry of the O-type binary HD 46149, stellar atmospheric effects related to rotation can be separated from pulsations, because they leave distinct signatures in

Low-amplitude variations detected by CoRoT in the B8IIIe star HD 175869

Context. The origin of the short-term variability in Be stars remains a matter of controversy. Pulsations and rotational modulation are the components of the favored hypothesis. Aims. We present our

The pulsations of the B5IVe star HD 181231 observed with CoRoT and ground-based spectroscopy

Context. HD 181231 is a B5IVe star, which has been observed with the CoRoT satellite during ∼5 consecutive months and simultaneously from the ground in spectroscopy and spectropolarimetry. Aims. By

Ground-based observations of the β Cephei CoRoT main target HD 180 642: abundance analysis and mode identification

The known β Cephei star HD 180 642 was observed by the CoRoT satellite in 2007. From the very high-precision light curve, its pulsation frequency spectrum could be derived for the first time

An asteroseismic study of the β Cephei star β Canis Majoris

Aims. We present the results of a detailed analysis of 452 ground-based, high-resolution high S/N spectroscopic measurements spread over 4.5 years for β Canis Majoris with the aim of determining the

Evidence for nonlinear resonant mode coupling in the β Cephei star HD 180642 (V1449 Aquilae) from CoRoT photometry

Context. We present the CoRoT light curve of the β Cep star HD 180642, assembled during the first long run of the space mission, as well as archival single-band photometry. Aims. Our goal is to

He and Si surface inhomogeneities of four Bp variable stars

We present ground-based multi-colour Geneva photometry and high-resolution spectra of four variable B-type stars: HD 105382, HD 131120, HD 138769 and HD55522. All sets of data reveal monoperiodic
...