JWST/NIRCam Transmission Spectroscopy of the Nearby Sub-Earth GJ 341b -- Supplementary Material

Published January 25, 2024 | Version v1

Dataset Open

1. Imperial College London
2. Johns Hopkins APL, Laurel, MD, 20723, USA
3. Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD, USA
4. Department of Planetary Sciences and Lunar and Planetary Laboratory, University of Arizona, Tuscon, AZ, USA
5. University of Maryland, Baltimore County, MD 21250, USA
6. Carnegie Earth & Planets Laboratory, Washington, DC, 20015, USA
7. NASA Ames Research Center, Moffett Field, CA, USA
8. Department of Earth & Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA
9. Center for Astrophysics | Harvard & Smithsonian
10. Department of Physics, Utah Valley University, Orem, UT, 84058 USA
11. Department of Astronomy, University of Michigan, 1085 S. University Ave., Ann Arbor, MI 48109, USA
12. NHFP Sagan Fellow
13. Space Telescope Science Institute, Baltimore, MD 21218, USA
14. School of Physics, HH Wills Physics Laboratory, University of Bristol, Bristol, UK

Supplementary material for 'JWST/NIRCam Transmission Spectroscopy of the Nearby Sub-Earth GJ 341b' by Kirk et al., AJ (2024).

This repository contains six categories of data products:

Data reduction reproduction — Eureka! control files (.ecf) and parameter files (.epf) alongside Tiberius input parameter files. These allow replication of our data reduction, light curve fitting, and transmission spectra extraction using the open-source code Eureka! and Tiberius.
Stellar spectra — (Non flux calibrated) observed stellar spectra of GJ 341 for all three NIRCam visits as extracted with Eureka! and Tiberius. We also include flux calibrated stellar spectra for all three visits as extracted with Tiberius.
Light curves — Reduced white and spectroscopic light curves from three data reduction codes (Eureka!, Tiberius, and Tswift) for all three NIRCam visits.
Transmission spectra — Reduced transmission spectra from three data reduction codes (Eureka!, Tiberius, and Tswift) for all three NIRCam visits.
Forward models — Set of four atmosphere forward models as presented in Kirk et al. 2024.
Retrieved models — The median retrieved atmosphere model for each of the three reductions (Eureka!, Tiberius, and Tswift) as presented in Kirk et al. 2024.

For any additional data requests or questions, please contact: j.kirk22@imperial.ac.uk

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