NGC 2244/Rosette Nebula: Chandra X-Ray Point Source Catalog

Over 900 X-ray sources detected within 20 arcminutes of the NGC 2244 cluster center using the Chandra observatory. This catalog, created by NASA HEASARC in July 2008, includes optical/NIR counterparts and supports analysis of the cluster's stellar population and structure. The data suggests a total population of about 2000 stars in this 2 million-year-old cluster.

Use Cases

• Analyzing the stellar initial mass function (IMF) based on the X-ray and K-band luminosity functions mentioned in the description.
• Studying the spatial distribution and dynamical state of a young cluster based on the described radial density profile and concentration around central O stars.
• Investigating the correlation between X-ray and bolometric luminosity for massive stars based on the log(Lx/Lbol) relation for stars earlier than B4.
• Estimating protoplanetary disk fractions in young clusters by comparing X-ray-selected and NIR-selected samples as discussed.

Strengths

• Over 900 detected X-ray sources, with 77% having optical or NIR stellar counterparts.
• X-ray-selected population is estimated to be nearly complete for stars between 0.5 and 3 solar masses.
• Data originates from the high spatial resolution Chandra X-ray Observatory and was curated by NASA HEASARC.

Limitations

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

Provenance

Source

NASA HEASARC, based on electronic tables from the Astrophysical Journal.

Collection Method

Observational data from the Chandra X-ray Observatory study of NGC 2244.

Time Range

Observational period not specified; catalog created in July 2008.

Freshness

Last updated 2026-03-13 18:15:43.028726; freshness should be verified.

Geography

Celestial region centered on the NGC 2244 cluster in the Rosette Nebula (J2000.0 RA and Dec of 6 31 59.9, +4 55 36).