We explore the potential offered by the incoming launch of the James Webb Space Telescope, to study the stars evolving through the asymptotic giant branch (AGB) phase. To this aim we compare data of AGB stars in the Large Magellanic Cloud, taken with the IRS spectrograph, with the results from modelling of AGB evolution and dust formation in the wind. We find that the best diagrams to study M- and C-stars are, respectively, ([F770W]−[F2500W], [F770W]) and ([F770W]−[F1800W], [F1800W]). ([F770W]−[F2500W], [F770W]) turns out to be the best way of studying the AGB population in its entirely.

中文翻译：

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在JWST时代研究渐近巨型分支星

我们研究了即将到来的詹姆斯·韦伯太空望远镜发射所提供的潜力，以研究通过渐近巨型分支（AGB）阶段演化的恒星。为此，我们将国税局光谱仪拍摄的大麦哲伦星云中AGB恒星的数据与AGB演化和风中尘埃形成的模型结果进行了比较。我们发现研究M星和C星的最佳图表分别是（[F770W]-[F2500W]，[F770W]）和（[F770W]-[F1800W]，[F1800W]）。（[F770W] − [F2500W]，[F770W]）被证明是研究AGB总体的最佳方法。