Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..339d&link_type=abstract
Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 339-352
Astronomy and Astrophysics
Astrophysics
19
Interferometry, Mass Loss, Stellar Pulsation, Stellar Diameters, Masers, Dust Shells
Scientific paper
Recent observations of long-period variable stars at spatial resolutions from approximately 1 arcsec to several milli-arcsecs have provided new insights into pulsation, dust formation, and mass-loss of AGB stars. These insights have come from long baseline interferometric observations obtained across a wide range of wavelengths, from the optical, through the infrared, to wavelengths as long as several millimeters. The present status and recent results from long baseline interferometry, particularly at optical and infrared wavelengths, are discussed. Such results include diameters and limb-darkening, surface features, mode of pulsation, location of SiO masers, inner radii of dust shells, physical conditions in the dust formation zone and of the inner regions of the dust shells. The results are interpreted in terms of present models of dust formation and mass-loss.
Bester Manfred
Danchi William C.
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