SFiNCs: Probable Young Stellar Members in 22 Nearby Star-Forming Regions

The Star Formation in Nearby Clouds (SFiNCs) project from NASA provides a detailed study of young stellar populations. It catalogs over 15,300 X-ray and over 1,630,000 mid-infrared point sources from Chandra and Spitzer archives, identifying nearly 8,500 probable young stellar members. The data analysis spans observations from January 2000 to April 2015.

Use Cases

• Identify and catalog young stellar objects based on combined X-ray and infrared properties.
• Compare stellar populations across 22 nearby star-forming regions to more distant clusters from the MYStIX survey.
• Analyze spatial distributions of probable cluster members within star-forming clouds.
• Study the correlation between X-ray emission and mid-infrared photometry in young stars.

Strengths

• Catalogs over 15,300 X-ray sources and over 1,630,000 mid-infrared point sources.
• Identifies nearly 8,500 probable young stellar members, increasing the census by 40% for the merged sample.
• Homogeneous data analysis applied across 65 Chandra observations and 423 Spitzer data sets.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for the final member catalog is not explicitly stated in the provided metadata.
• Photometric measurements are complete in the 3.6 and 4.5um bands but only 29% and 23% complete in the 5.8 and 8.0um bands.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Homogeneous analysis of archival data from the Chandra X-ray Observatory and Spitzer Space Telescope.

Time Range

2000 January to 2015 April

Freshness

Last updated 2026-03-13 18:12:15.976428; freshness should be verified.

Geography

Observations of 22 nearby star-forming regions on the sky.