An observational test of tidally induced mixing in a massive binary system (CROSBI ID 473904)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Pavlovski, Krešimir ; Hensberge, Herman
hrvatski
An observational test of tidally induced mixing in a massive binary system
A detailed study of the double-lined eclisping binary V578 Mon belonging to the young open cluster NGC 2244 in the Rosette Nebula is undertaken. The physical properties and evolutionary status of the components are derived from the analysis of the new high-precision light curve and high-resolution echelle spectra secured at ESO. The individual spectra of both components are recovered by applying a novel Fourier disentangling technique. These spectra are then analyzed as if it were single star spectra, enabling to derive the temperature spectroscopically and to perform an abundance study for each component separately. The binary consists of two young early-B type stars well inside their critical Roche volume. They move in an eccentric orbit. The position of the primary in the HR diagram is fully consistent with the evolutionary tracks for single stars, but the secondary is slightly overluminous. Possible indications for strong internal mixing in the secondary, due to motions induced by the proximity of the primary, will be discussed in relation with the derived abundances.
mixing; abundances; binary stars
nije evidentirano
engleski
An observational test of tidally induced mixing in a massive binary
nije evidentirano
mixing; abundances; binary stars
nije evidentirano
Podaci o prilogu
162-162-x.
2000.
objavljeno
Podaci o matičnoj publikaciji
24th General Assembly IAU, Abstract Book
Manchester: IAU
Podaci o skupu
JD5 Mixing and Diffusion in Stars: Theoretical prediction and Observational Constraints, 24th IAU General Assembly
poster
07.08.2000-18.08.2000
Manchester, Ujedinjeno Kraljevstvo