Improved fundamental parameters and LTE abundances of the CoRoT solar-type pulsator HD 49933
نویسندگان
چکیده
منابع مشابه
The diameter of the CoRoT target HD 49933
Context. The interpretation of stellar pulsations in terms of internal structure depends on the knowledge of the fundamental stellar parameters. Long-base interferometers permit us to determine very accurate stellar radii, which are independent constraints for stellar models that help us to locate the star in the HR diagram. Aims. Using a direct interferometric determination of the angular diam...
متن کاملSeismology and activity of the F type star HD 49933
A 10-night asteroseismic observation programme has been conducted in January 2004 with the spectrometer harps at the ES0 3.6-m telescope. The selected target, the 6th magnitude F5V star HD 49933, was chosen among the prime candidates of corot, the European space mission dedicated to characterize stellar oscillations mode with high precision photometry measurements. This star shows important lin...
متن کاملthe investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
Accurate fundamental parameters of CoRoT asteroseismic targets
Context. The CoRoT satellite has provided high-quality light curves of several solar-like stars. Analysis of the light curves provides oscillation frequencies that make it possible to probe the interior of the stars. However, additional constraints on the fundamental parameters of the stars are important for the theoretical modelling to be successful. Aims. We will estimate the fundamental para...
متن کاملOn posterior probability and significance level: application to the power spectrum of HD 49933 observed by CoRoT
Aims. We emphasize that the mention of the significance level when rejecting the null hypothesis (H0 which assumes that what is observed is pure noise) can mislead one to think that the H0 hypothesis is unlikely to occur with that significance level. We show that the significance level has nothing to do with the posterior probability of H0 given the observed data set, and that this posterior pr...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2009
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/200911871