Pulsational content and abundance analysis of some Delta Scuti stars observed by CoRoT

@article{Poretti2010PulsationalCA,
  title={Pulsational content and abundance analysis of some Delta Scuti stars observed by CoRoT},
  author={Ennio Poretti and Luciano Mantegazza and Ewa Niemczura and Monica Rainer and Thierry Semaan and Theresa Luftinger and Annie Baglin and Michel Auvergne and Ellinor Michel and R'eza Samadi},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2010}
}
Several Delta Sct stars were photometrically monitored with the satellite CoRoT and observed in high-resolution spectroscopy from ground. We present here the preliminary analysis of the abundance analysis of several potential CoRoT targets. Moreover, new insights are given about the problem of the huge number of detected frequencies by comparing Delta Sct stars with normal A-stars. 

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References

SHOWING 1-10 OF 12 REFERENCES
Evidence for Granulation in Early A-Type Stars
Stars with spectral types earlier than about F0 on (or close) to the main sequence have long been believed to lack observable surface convection, although evolutionary models of A-type stars doExpand
HD 50844: a new look at δ Scuti stars from CoRoT space photometry
Context. Aims. This work presents the results obtained by CoRoT on HD 50844, the only δ Sct star observed in the CoRoT initial run (57.6 d). The aim of these CoRoT observations was to investigate andExpand
The Solar Chemical Composition
Abstract We present our current knowledge of the solar chemical composition based on the recent significant downward revision of the solar photospheric abundances of the most abundant metals. TheseExpand
A calibration of Geneva photometry for B to G stars in terms of Teff, log g and $[M/H]$
We have used recent Kurucz models and numerous standard stars to improve the calibration of the Geneva photometric system proposed a few years ago. A new photometric diagram for the classification ofExpand
Grids for the determination of effective temperature and surface gravity of B, A and F stars using uvby-beta photometry
Comparaison des couleurs synthetiques et des indices de photometrie uvbyβ calcules pour des atmospheres stellaires modeles avec les couleurs et indices observes pour des etoiles B, A et F dont onExpand
Validation of the new Hipparcos reduction
Context. A new reduction of the astrometric data as produced by the Hipparcos mission has been published, claiming accuracies for nearly all stars brighter than magnitude Hp = 8 to be better, by upExpand
Effective temperature scale and bolometric corrections from 2MASS photometry
We present a method to determine effective temperatures, angular semi-diameters and bolometric corrections for population I and II FGK type stars based on V and 2MASS IR photometry. AccurateExpand
Database of Geneva stellar evolution tracks and isochrones for (UBV) J (RI) C JHKLL'M, HST-WFPC2, Geneva and Washington photometric systems
We have used an updated version of the empirically and semi-empirically calibrated B a S e L library of synthetic stellar spectra of Lejeune et al.([CITE], [CITE]) and Westera et al.([CITE]) toExpand
Data Reduction and Error Analysis for the Physical Sciences
TLDR
Numerical methods matrices graphs and tables histograms and graphs computer routines in Pascal and Monte Carlo techniques dependent and independent variables least-squares fit to a polynomial least-square fit to an arbitrary function fitting composite peaks direct application of the maximum likelihood. Expand
...
1
2
...