NGC 4382 Chandra LMXB Catalog: 58 X-Ray Sources in a Lenticular Galaxy
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Description
58 X-ray sources were resolved in the lenticular galaxy NGC 4382 during a 39,749-second observation by the Chandra X-Ray Observatory on 2001 May 29-30. The catalog, created by NASA HEASARC in June 2018, presents results where 22% of counts within two effective radii were resolved sources, 33% were unresolved LMXBs, and 45% were diffuse gas. This table includes defined hardness ratios (HR21, HR31) for source classification across soft, medium, and hard energy bands.
Use Cases
Classifying low-mass X-ray binary populations based on hardness ratios HR21 and HR31.
Analyzing the spatial distribution of X-ray sources within two effective radii of NGC 4382.
Studying the relative contributions of resolved sources, unresolved LMXBs, and diffuse gas to total X-ray emission.
Comparing X-ray source properties with observations of the companion galaxy NGC 4365.
Strengths
Data originates from the Chandra X-Ray Observatory, a premier space telescope.
Observation duration is precisely specified as 39,749 seconds.
Catalog quantifies the percentage contribution of three emission components: resolved sources (22%), unresolved LMXBs (33%), and diffuse gas (45%).
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Data is from a single observation epoch in 2001; temporal changes are not captured.
Provenance
Source
NASA HEASARC, based on CDS Catalog J/ApJ/599/218.
Collection Method
Imaging from the Chandra X-Ray Observatory ACIS-S3 instrument.
Time Range
Observation date: 2001 May 29-30.
Freshness
Last updated 2026-03-13 17:15:41.423261; freshness should be verified.
Geography
Target: Lenticular galaxy NGC 4382.
License is listed as 'other-license-specified'; terms should be reviewed before use. File formats include BIN and HTML.