Reconstruction and Analysis of Component Spectra of Binary and Multiple Stars

Details Reconstruction and Analysis of Component Spectra of Binary and Multiple Stars Reconstruction and Analysis of Component Spectra of Binary and Multiple Stars

2009-09-17

arxiv.org/abs/0909.3246v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

10 pages, 2 figures, To appear in the ASP Conference Series Proceedings of 'Binaries - Key to Comprehension of the Universe' (

Scientific paper

In the last two decades about a dozen methods were invented which derive, from a series of composite spectra over the orbit, the spectra of individual components in binary and multiple systems. Reconstructed spectra can then be analyzed with the tools developed for single stars. Eventually this has created the opportunity for chemical composition studies in previously inaccessible components of binary stars, and to follow their chemical evolution, an important aspect in understanding evolution of stellar systems. First, we review new developments in techniques to separate and reconstruct individual spectra, and thereafter concentrate on some applications. In particular, we emphasize the elemental abundance studies for high-mass stars, and present our recent results in probing theoretical evolution models which include effects of rotationally induced mixing.

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