Published June 7, 2026 | Version v1.1.4
Software Open

jwspecfit: resolution-aware emission-line fitting, MCMC sampling, and chemical abundances for JWST NIRSpec

Authors/Creators

  • 1. UCL Department of Physics & Astronomy

Description

jwspecfit is a coordinated suite of three Python packages for the analysis of JWST NIRSpec spectra: least-squares Gaussian line fitting with resolution-aware bin-averaged profiles (jwspecfit), Bayesian MCMC fitting via NUTS, emcee, or nautilus (jwspecmcmc), and chemical abundance derivation via direct-Te (PyNEB), Bayesian forward model (Cullen+25), or strong-line calibrations (Sanders+25) with Balmer-decrement dust correction anchored on Halpha or Hbeta (jwspecabund).

Notes

If you use this software in a publication, please cite it using the metadata below. To mint a permanent DOI, enable the repository on Zenodo and create a GitHub release — see the README for the full procedure.

Files

raunaq-rai/jwspecfit-v1.1.4.zip

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Additional details

Related works

Is supplement to
Software: https://github.com/raunaq-rai/jwspecfit/tree/v1.1.4 (URL)

Software

Repository URL
https://github.com/raunaq-rai/jwspecfit