NGC 2264 Chandra X-Ray Point Source Catalog with 263 Sources
Updated 3mo ago
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Description
The NGC 2264 star-forming region was observed by NASA's Chandra X-ray Observatory on 2002 February 9 for 48.1 ks. This catalog contains 263 X-ray sources, with data on luminosity, variability, and optical/infrared photometry, created by the HEASARC in February 2007. The authors identified 41 variable sources and found photometry consistent with most objects being pre-main sequence stars younger than 3 Myr.
Use Cases
Identify and analyze variable X-ray sources based on the 41 flagged variable sources and flare-like light curves.
Study stellar evolution by correlating X-ray data with optical and infrared photometry for pre-main sequence stars.
Distinguish between cluster members and extragalactic objects based on the presence or absence of optical/infrared counterparts.
Model X-ray luminosity and variability patterns in a young star-forming region.
Strengths
Contains 263 distinct X-ray sources from a dedicated 48.1 ks Chandra observation.
Includes multi-wavelength data with optical and infrared photometry for cross-identification.
Provides variability analysis, identifying 41 variable sources including 14 with flare-like light curves.
Offers clear astrophysical interpretation, with 81% of sources having optical/infrared counterparts and 51 likely extragalactic.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Last updated 2026-03-13 19:18:44.730319; freshness should be verified.
Provenance
Source
NASA HEASARC, based on CDS table J/AJ/127/2659.
Collection Method
Observation with Chandra's Advanced CCD Imaging Spectrometer imaging array (ACIS-I).
Time Range
Observation date 2002 February 9.
Freshness
Last updated 2026-03-13 19:18:44.730319; freshness should be verified.
Geography
Field in the NGC 2264 star-forming region.
License is listed as 'other-license-specified'; terms should be reviewed. File formats include BIN and HTML.