EAS Publications Series
Volume 6, 2003Observing with the VLTI
|Page(s)||203 - 203|
|Published online||31 January 2003|
G. Perrin and F. Malbet (eds)
EAS Publications Series, 6 (2003) 203
Spectral Observations of Envelopes around Stars in Late Stages of Stellar Evolution
Max-Planck-Institut für Radioastronomie, Bonn, Germany
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, provide complementary information and will improve modelling and interpretation.
© EAS, EDP Sciences, 2003
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