SFiNCs: X-Ray and Infrared Catalog of Young Stars in 22 Nearby Clouds
Updated 3mo ago
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Description
A catalog of over 15,300 X-ray and over 1,630,000 mid-infrared point sources from the Star Formation in Nearby Clouds project. The data, produced by NASA, combines Chandra X-ray and Spitzer infrared archival observations from 2000 to 2015 to study young stellar populations. It identifies nearly 8,500 probable young stellar members across 22 nearby star-forming regions.
Use Cases
Identify and classify young stellar objects based on combined X-ray and infrared properties.
Study spatial distributions and clustering of young stars within 22 nearby star-forming regions.
Compare young stellar populations to those in more distant, richer clusters like the MYStIX survey.
Analyze photometric properties of stars using infrared measurements in the 3.6, 4.5, 5.8, and 8.0 µm bands.
Strengths
Large scale with over 15,300 X-ray sources and over 1.6 million infrared sources.
Homogeneous analysis applied across 65 Chandra observations and 423 Spitzer data sets.
Increases the census of young stellar object members by 40% for the merged sample of all 22 regions.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count for the final member table is not specified in the provided metadata.
Infrared photometry is not complete for all bands (available for 29% and 23% of sources in the 5.8 and 8.0 µm bands).
Provenance
Source
National Aeronautics and Space Administration (NASA)
Collection Method
Homogeneous re-analysis of archival Chandra X-ray and Spitzer mid-infrared data.
Time Range
Observations spanning from 2000 January to 2015 April.
Freshness
Last updated 2026-03-13 19:16:55.438429; freshness should be verified.
Geography
Observations of 22 nearby star-forming regions in the sky.
License is listed as 'other-license-specified'; specific terms must be checked. Data files are in BIN and HTML formats.