NGC 2237 Chandra X-Ray Point Source Catalog: 168 Sources in a Young Stellar Cluster

A 2026 catalog from NASA's Chandra X-ray Observatory images of the NGC 2237 young stellar cluster on the periphery of the Rosette Nebula. The dataset contains 168 detected X-ray sources, with 80% having stellar counterparts in other surveys, and indicates a population of approximately 400-600 stars. It provides the first census of cluster members with masses between 0.2 and 2 solar masses, estimating a cluster age of around 2 million years.

Use Cases

• Analyzing the spatial distribution of young stellar objects based on the arc-like alignment of Class II sources.
• Studying the correlation between X-ray luminosity and stellar properties based on the derived X-ray luminosity function.
• Investigating triggered star formation scenarios based on the distribution of clusters relative to the central NGC 2244 cluster.
• Estimating cluster demographics and star formation rates based on the K-band luminosity function and population estimates.
• Identifying and characterizing pre-main-sequence stars with circumstellar disks based on the reported K-excess disk frequency.

Strengths

• Contains 168 X-ray sources with high spatial resolution from the Chandra observatory.
• 80% of sources have cross-matched stellar counterparts in USNO, 2MASS, and FLAMINGOS surveys.
• Provides specific derived metrics, including a K-excess disk frequency of 13% and a cluster age estimate of ~2 Myr.
• Includes cross-references to published catalogs for specific sources, aiding in data verification.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale statistical modeling.
• Data files are in BIN and HTML formats, which may require specialized tools for access and analysis.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Observational data from Chandra X-ray Observatory images, cross-matched with other astronomical surveys.

Time Range

Observational period not specified; catalog reflects a snapshot of the cluster.

Freshness

Last updated 2026-03-13 17:10:56.450817; freshness should be verified.

Geography

The NGC 2237 young stellar cluster in the Rosette Nebula, at a distance of 1.4 kpc.