The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 43 Issue 2
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- Pages.51.4-51.4
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- 2018
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- 1226-2692(pISSN)
Inner Circumstellar Ring of Galactic Luminous Blue Variable G26.
Abstract
Luminous blue variables (LBVs) are luminous evolved massive stars (thus with very large initial masses) typified by their irregular variabilities, which are sometimes associated with eruptive mass loss. G026.47+0.02 is one of the known Galactic LBV surrounded by large circumstellar shell (r~1') detected in far IR. In this presentation, we report the identification of another shell of smaller radii (r~20") indicating that the central star experienced multiple episodes of eruptions. We present detailed multi-wavelength study of the inner shell in near IR and sub-mm, with which we reconstruct its mass-loss history.
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