Spectral Observations of Stars in Late Stages of Stellar Evolution

Details Spectral Observations of Stars in Late Stages of Stellar Evolution Spectral Observations of Stars in Late Stages of Stellar Evolution

2002-07-03

arxiv.org/abs/astro-ph/0207093v1

Astronomy and Astrophysics

Astrophysics

10 pages, 5 PostScript figures, seminar given at the EuroWinterSchool "Observing with the VLTI", Feb 3-8 2002, Les Houches (Fr

Scientific paper

Interferometric observations of stars in late stages of stellar evolution and the impact of VLTI observations are discussed. Special attention is paid to the spectral information that can be derived from these observations and on the corresponding astrophysical interpretation of the data by radiative transfer modelling. It is emphasized that for the robust and non-ambiguous construction of dust-shell models it is essential to take diverse and independent observational constraints into account. Apart from matching the spectral energy distribution, the use of spatially resolved information plays a crucial role for obtaining reliable models. The combination of long-baseline interferometry data with high-resolution single-dish data (short baselines), as obtained, for example, by bispectrum speckle interferometry, provides complementary information and will improve modelling and interpretation.

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