Spatially resolving the AGB star V3 in the metal-poor globular cluster 47 Tuc with VLTI/GRAVITY
K. Ohnaka,
G. Weigelt,
K.-H. Hofmann
et al.
Abstract:Mass loss at the asymptotic giant branch (AGB) plays an important role not
only in the final fates of stars, but also in the chemical evolution of
galaxies. Nevertheless, the metallicity effects on AGB mass loss are not
yet fully understood. We present spatially resolved observations of an AGB star, V3,
in the metal-poor globular cluster 47 Tuc (NGC 104). The AGB star 47 Tuc V3 was observed using the GRAVITY
instrument at ESO's Very Large Telescope Interferometer (VLTI) at
2--2.45 mu m \ with a project… Show more
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