JWST时代恒星演化与恒星死亡研究展望
Prospects for Studies of Stellar Evolution and Stellar Death in the JWST Era
摘要：
我回顾了JWST和并行设施的低，中，高质量恒星的高级演化阶段的研究前景，特别强调它们如何可能有助于阐明星系星际尘埃成分的主要贡献者。从中红外到亚毫米的观测可以帮助量化从AGB星输入星系的重元素和尘埃种类。JWST的MIRI中红外仪器将非常灵敏，可以观测到室女星系团中单个星系间AGB恒星和行星状星云的尘埃排放。Herschel空间天文台将使最后一个基本上未被探索的光谱区域，即远红外到亚毫米波段，能够进行新的谱线和尘埃特征的调查，而SOFIA将覆盖JWST和Herschel之间的波长间隙，这是一个包含重要精细结构谱线的光谱区域，以及关键的水冰和结晶硅酸盐谱带。斯皮策已经显着增加了II型超新星的数量，已经调查了早期的尘埃形成，但可靠的量化的尘埃贡献的大质量恒星超新星的II型，Ib型和Ic型的低和高红移星系应该来自JWST MIRI观测，这将能够探测体积超过1000倍斯皮策。
英文摘要：
I review the prospects for studies of the advanced evolutionary stages of low-, intermediate- and high-mass stars by the JWST and concurrent facilities, with particular emphasis on how they may help elucidate the dominant contributors to the interstellar dust component of galaxies. Observations extending from the mid-infrared to the submillimeter can help quantify the heavy element and dust species inputs to galaxies from AGB stars. JWST's MIRI mid-infrared instrument will be so sensitive that observations of the dust emission from individual intergalactic AGB stars and planetary nebulae in the Virgo Cluster will be feasible. The Herschel Space Observatory will enable the last largely unexplored spectral region, the far-IR to the submillimeter, to be surveyed for new lines and dust features, while SOFIA will cover the wavelength gap between JWST and Herschel, a spectral region containing important fine structure lines, together with key water-ice and crystalline silicate bands. Spitzer has significantly increased the number of Type II supernovae that have been surveyed for early-epoch dust formation but reliable quantification of the dust contributions from massive star supernovae of Type II, Type Ib and Type Ic to low- and high-redshift galaxies should come from JWST MIRI observations, which will be able to probe a volume over 1000 times larger than Spitzer.
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