Title: Observations of the Planetary Nebula SMP LMC 058 with the JWST MIRI Medium Resolution Spectrometer Show Chinese title

Title: 使用詹姆斯·韦布空间望远镜中红外线仪器中分辨率光谱仪对行星状星云SMP LMC 058的观测

Abstract: During the commissioning of {\em JWST}, the Medium-Resolution Spectrometer (MRS) on the Mid-Infrared Instrument (MIRI) observed the planetary nebula SMP LMC 058 in the Large Magellanic Cloud. The MRS was designed to provide medium resolution (R = $\lambda$/$\Delta\lambda$) 3D spectroscopy in the whole MIRI range. SMP LMC 058 is the only source observed in {\em JWST} commissioning that is both spatially and spectrally unresolved by the MRS and is a good test of {\em JWST's} capabilities. The new MRS spectra reveal a wealth of emission lines not previously detected in this planetary nebula. From these lines, the spectral resolving power ($\lambda$/$\Delta\lambda$) of the MRS is confirmed to be in the range R $=$ 4000 to 1500, depending on the MRS spectral sub-band. In addition, the spectra confirm that the carbon-rich dust emission is from SiC grains and that there is little to no time evolution of the SiC dust and emission line strengths over a 17-year epoch. These commissioning data reveal the great potential of the MIRI MRS for the study of circumstellar and interstellar material. Show Chinese abstract

Abstract: 在{\em JWST}调试期间，中分辨率光谱仪(MRS)对大麦哲伦星云中的行星状星云 SMP LMC 058 进行了观测。 MRS 被设计为在整个 MIRI 波长范围内提供中等分辨率(R =$\lambda$/$\Delta\lambda$)的三维光谱。 SMP LMC 058 是在{\em JWST}调试期间观测到的唯一一个既在空间上又在光谱上未被 MRS 分辨的源，并且是测试{\em 詹姆斯·韦布空间望远镜的}能力的良好示例。 新的 MRS 光谱揭示了该行星状星云中此前未检测到的大量发射线。 从这些线条可以看出，MRS的光谱分辨能力（$\lambda$/$\Delta\lambda$）被确认在R$=$4000到1500范围内，具体取决于MRS的光谱子带。 此外，光谱证实碳丰富的尘埃发射来自SiC颗粒，并且在17年的时期内，SiC尘埃和发射线强度几乎没有时间演变。 这些调试数据揭示了MIRI MRS在研究恒星周围和星际物质方面的巨大潜力。