Excavating Mass Loss History in Extended Dust Shells of Evolved Stars: the MLHES Mission Programme with the AKARI Astronomy Satellite

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Lunar, Planetary, And Deep-Space Probes, Mass Loss And Stellar Winds, Charge-Coupled Devices, Image Detectors, And Ir Detector Arrays, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus

Scientific paper

With the Japanese IR Astronomy Satellite, AKARI, we have performed a far-IR imaging survey of extended cold dust shells around evolved stars. Our observations yield far-IR surface brightnesses of these shells, from which we can reconstruct the history of mass loss (as a function of time) during the critical epochs of mass loss near the end of the asymptotic giant branch phase. Below, we will present the motivation of the study, review the past studies, introduce the AKARI Astronomy Satellite and present a glimpse of the preliminary results of the MLHES Mission Programme.

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