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arXiv · 2301.13233

Observations of the Planetary Nebula SMP LMC 058 with the JWST MIRI Medium Resolution Spectrometer

O. C. Jones·J. Álvarez-Márquez·G. C. Sloan·P. J. Kavanagh·I. Argyriou·A. Labiano·D. R. Law·P. Patapis·Michael Mueller·Kirsten L. Larson·Stacey N. Bright·P. D. Klaassen·O. D. Fox·Danny Gasman·V. C. Geers·Adrian M. Glauser·Pierre Guillard·Omnarayani Nayak·A. Noriega-Crespo·Michael E. Ressler·B. Sargent·T. Temim·B. Vandenbussche·Macarena García Marín
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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.

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O. C. Jones, J. Álvarez-Márquez, G. C. Sloan, P. J. Kavanagh, I. Argyriou, A. Labiano, D. R. Law, P. Patapis, Michael Mueller, Kirsten L. Larson, Stacey N. Bright, P. D. Klaassen, O. D. Fox, Danny Gasman, V. C. Geers, Adrian M. Glauser, Pierre Guillard, Omnarayani Nayak, A. Noriega-Crespo, Michael E. Ressler, B. Sargent, T. Temim, B. Vandenbussche, Macarena García Marín. 2023-01-30. Observations of the Planetary Nebula SMP LMC 058 with the JWST MIRI Medium Resolution Spectrometer. https://doi.org/10.1093/mnras/stad1609

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