SMA Research: Dying Stars
Nimesh Patel, Ken Young


Circumstellar envelopes of late-type stars in the asymptotic giant branch (AGB) phase of evolution are an important source of interstellar dust grains. These envelopes also enrich the interstellar medium with complex molecules that are abundant in the relatively cool outer parts of the expanding circumstellar shell. Important areas of current research in the field of evolved stars include: 1) the phenomenon of mass loss, 2) the formation of proto-planetary nebulae, and 3) circumstellar chemistry. The SMA is actively contributing to all these areas. As of July 2010, there were 22 SMA publications on topics related to evolved stars.

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