Recommended Isolated-Line Profile for High-Resolution Spectroscopic Transitions

An IUPAC Task Group report presents a recommended line profile model for high-resolution spectroscopy. The report documents the inadequacies of the commonly used Voigt profile and recommends the adoption of the Hartmann–Tran profile. The Task Group was formed in 2011 and the report's author is Jonathan Tennyson of University College London.

Use Cases

• Improving the accuracy of spectroscopic databases based on the recommended Hartmann–Tran profile.
• Developing or refining radiative-transfer codes to incorporate more sophisticated pressure-broadening models.
• Benchmarking alternative line-profile models against the recommended standard for water molecule transitions.
• Studying the physics of pressure effects and Doppler broadening in isolated vibrational-rotational transitions.

Strengths

• Report is the product of a formal IUPAC Task Group formed in 2011, indicating a structured review process.
• The recommended Hartmann–Tran profile is described as sophisticated enough to capture various collisional contributions and can be computed rapidly.

Limitations

• The dataset's row count, column definitions, and sample data are unknown, limiting suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

IUPAC Task Group report authored by Jonathan Tennyson, University College London.

Collection Method

Task Group review and recommendation, likely synthesizing experimental and theoretical work.