具有碳化硅拱星壳层的OH/IR星
The oh / ir stars with SiC circumstellar envelopes
热的尘埃壳层分布在拱星包层的靠恒星很近的地方，它是在post-AGB中新近形成的。
Hot dust-shell is distributed in circumstellar envelop nearby the star . It is recently formed at post-AGB phase .
壳层星