PSR J0740+6620: Neutron Star Radius Posterior Samples

Posterior sample files and associated data products from the analysis of the neutron star PSR J0740+6620 using NICER X-ray telescope data. The dataset includes numeric model files, calibration products, Python model modules using the X-PSI framework, and Jupyter analysis notebooks. It was produced by Tuomo Salmi and colleagues at the University of Amsterdam for a 2022 publication.

Use Cases

• Bayesian parameter estimation of neutron star radius based on X-ray pulse profile modeling.
• Reproducing or extending the analysis of PSR J0740+6620 using the provided X-PSI framework modules.
• Calibrating X-ray telescope models using the included calibration products.
• Teaching Bayesian data analysis in astrophysics with the provided Jupyter notebooks.

Strengths

• Includes posterior samples from a peer-reviewed 2022 publication in The Astrophysical Journal.
• Provides the full analysis environment, including Python modules and Jupyter notebooks for reproducibility.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

NICER X-ray telescope observations.

Collection Method

Bayesian analysis of X-ray pulse profiles using the X-PSI framework.