Contents of: VI/111/./abstract/MVOGEL_SYMBPHYS.abs

The following document lists the file abstract/MVOGEL_SYMBPHYS.abs from catalogue VI/111.
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 We propose low-resolution scans of a selected sample of symbiotic
 binaries in order to investigate physical processes generating the IR
 emission of these objects. Our principal aim is to study the properties
 of dust formed in symbiotic binaries. Symbiotics provide a different
 physical environment for dust formation and dust emission than single
 red giants. The hot (T = 80000K - 150000K) companion affects the wind
 properties of the red giant, and very likely also the dust formation
 and dust emission. Differences of IRAS colours between single red giants
 and symbiotic systems containing red giants of the same spectral type
 indicate that the physical conditions in the dust shell are indeed
 dramatically influenced by the hot companion in the binary. We expect
 from our proposed ISO observations to allow a decisive advance in the
 understanding of symbiotic systems. Low resolution spectroscopy in the
 2.4-197 um range will most probably answer the puzzling question, why the
 symbiotic phenomenon arises only in three different, well defined
 situations with regard to the cool giant's classification and the
 symbiotic subclass. For example, we hope to find the solution why there
 is no symbiotic system with an orbit typical for D-types, but containing
 a non-Mira type giant. In addition, we believe that dust formation
 theories will profit as well from the unique physical conditions
 encountered in symbiotic binaries.

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