NGC 4214 Chandra X-Ray Point Source Catalog with 116 Sources
Updated 3mo ago
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Description
79 ks of combined archival Chandra X-Ray Observatory observations of the starburst galaxy NGC 4214, conducted in 2001 and 2004. The catalog contains 116 high-significance X-ray point sources down to a limiting luminosity of ~5e35 erg/s, produced by NASA HEASARC in September 2015. It includes hardness ratios, spectral analysis, and cross-correlations with Hubble Space Telescope data for preliminary source classification.
Use Cases
Classify X-ray sources as likely X-ray binaries, background AGN, supernova remnants, or foreground stars based on cross-correlations with optical counterparts.
Analyze temporal variability of high-significance X-ray sources in a starburst galaxy environment.
Study the radial distribution of X-ray point sources within the galaxy NGC 4214.
Perform spectral analysis and calculate X-ray hardness ratios across nine energy bands.
Compare source populations across galaxies as part of the broader Chandra Local Volume Survey.
Strengths
Contains 116 high-significance sources with a strict Poisson probability threshold (pns < 4e-6).
Based on 79 ks of effective exposure time from three separate Chandra ACIS-S observations.
Includes multi-wavelength cross-correlation with Hubble Space Telescope data for source classification.
Limitations
Excludes 95 lower-significance sources (4e-6 < pns < 1e-3) which may be genuine.
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Provenance
Source
National Aeronautics and Space Administration (NASA HEASARC)
Collection Method
Iterative source detection using wavdetect and ACIS-Extract on Chandra ACIS-S data.
Time Range
Observations from 2001-10 16 and 2004-04-03, 2004-07-30.
Freshness
Last updated 2026-03-13 19:20:30.039947; freshness should be verified.
Geography
The IAB(s)m galaxy NGC 4214, a nearby starburst galaxy.
License is listed as 'other-license-specified'; specific terms should be reviewed before use.