Observations of the planetary nebula SMP LMC 058 with the JWST MIRI medium resolution spectrometer
METADATA ONLY
Loading...
Author / Creator
Date
2023-08
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
METADATA ONLY
Data
Rights / License
Abstract
During the commissioning of 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 = λ/Δλ) 3D spectroscopy in the whole MIRI range. SMP LMC 058 is the only source observed in JWST commissioning that is both spatially and spectrally unresolved by the MRS and is a good test of 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 (λ/Δλ) of the MRS is confirmed to be in the range R = 4000-1500, depending on the MRS spectral sub-band. In addition, the spectra confirm that the carbon-rich dust emission is from complex hydrocarbons and SiC grains and that there is little to no time evolution of the SiC dust and emission line strengths over a 17-yr epoch. These commissioning data reveal the great potential of the MIRI MRS for the study of circumstellar and interstellar material.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
523 (2)
Pages / Article No.
2519 - 2529
Publisher
Oxford University Press
Event
Edition / version
Methods
Geographic location
Date collected
Date created
Subject
instrumentation: spectrographs; infrared: general; planetary nebulae: individual: SMP LMC 058
Organisational unit
09680 - Quanz, Sascha Patrick / Quanz, Sascha Patrick