Pregled bibliografske jedinice broj: 275569
Abundances from Disentangled Component Spectra: High-mass Stars in the Eclipsing Binaries CW Cep and V478 Cyg
Abundances from Disentangled Component Spectra: High-mass Stars in the Eclipsing Binaries CW Cep and V478 Cyg // Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposium no. 240
Prag, Češka Republika, 2006. (poster, nije recenziran, sažetak, znanstveni)
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Naslov
Abundances from Disentangled Component Spectra: High-mass Stars in the Eclipsing Binaries CW Cep and V478 Cyg
Autori
Pavlovski, Kresimir ; Tamajo, Ettore
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Skup
Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposium no. 240
Mjesto i datum
Prag, Češka Republika, 22.08.2006. - 25.08.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Nije recenziran
Ključne riječi
binary stars; spectroscopy; abundances
Sažetak
Techniques of the spectral disentangling of the composite spectra of close binaries in combination with light-curve analysis make it possible to reconstruct individual component spectra. In an on-going project we are making photospheric elemental abundance determination for high-mass stars in OB binaries. The principal goal of the project is an observational test of rotational evolutionary stellar models of high-mass stars, and calibration of the photospheric abundance changes in terms of the stellar mass, the fractional life-time on the Main Sequence, and the rotational velocity. In the present work two more OB binaries, CW Cep and V478 Cyg, with masses of the components in the range of 12-15 M_Sun were analyzed. Results would be discussed in the context of our previous studies in this series, and compared to the theoretical predictions.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
