VIIth Catalog of Galactic Wolf-Rayet Stars: 227 Stars with Spectral Types and Distances

227 Galactic Wolf-Rayet stars are cataloged with improved coordinates, spectral types, and photometry. The catalog, created by NASA HEASARC in April 2001, adds 71 new stars compared to the previous version and includes data on binarity, wind velocities, and associations with nebulae. Information on heliocentric and galactocentric distances and source references is provided.

Use Cases

• Classifying stellar populations based on spectral types (WN, WC, WN/WC, WO) mentioned in the description.
• Studying stellar distribution and proximity to the Galactic Center based on the listed distances.
• Investigating correlations between Wolf-Rayet stars and interstellar structures like H II regions and ring nebulae.
• Analyzing stellar characteristics such as periodicity and binarity for evolutionary modeling.

Strengths

• Catalog contains 227 stars, a specific increase of 71 stars from the prior version.
• Includes 15 WNL and 11 WCL stars specifically noted within 30 parsecs of the Galactic Center.
• Provides multiple data dimensions: spectral types, photometry, distances, and environmental associations.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2026-03 17:42:52.926819; freshness should be verified for current research.

Provenance

Source

NASA HEASARC, based on tables supplied by the author of the published paper.

Collection Method

Compiled from electronic versions of published catalog tables.

Time Range

Catalog snapshot as of April 2001.

Freshness

Catalog created in April 2001; metadata last updated March 2026.

Geography

Galactic (Milky Way).