A rich hydrocarbon chemistry and high C to O ratio in the inner disk around a very low-mass star

This dataset includes selected portions of the JWST/MIRI spectrum of the J160532 disk analyzed in the paper by Tabone et al. (2023), to be published by Nature Astronomy. The original observational data are part of the Guaranteed Time Observation-MIRI programme ‘MIRI EC Protoplanetary and Debris Disks Survey’ (ID 1282) with number 47 and will become public on August 1st, 2023 on the MAST database https://archive.stsci.edu/. In addition, this release contains the best-fit slab models. Some basic information about the models can be found in the headers.

The dataset consists of two data files. The first file contains the continuum subtracted JWST/MIRI spectrum of J160532 in the 12.5-14.7 \(\mu\text{m}\) region shown in Fig. 1 (right panel) of Tabone et al. (2023) where C2H2 emission is seen as a broad bump and prominent narrower features. The best-fit slab models correspond to the highly optically thick C2H2 component I and the optically thinner C2H2 component II. The second file is the continuum subtracted JWST/MIRI spectrum in the 14.6-16.1 \(\mu\text{m}\) region shown in Fig. 2 of Tabone et al. (2023) where C6H6 (benzene), CO2, and C4H2 features are detected. The best-fit slab models for the three species are also provided. Fig. 1 (righ panel) and Fig. 2 of Tabone et al. (2023) can be reproduced using the two Python scripts.