M 83 Chandra X-Ray Point Source Catalog with 378 Sources

The nearby galaxy M 83 (4.61 Mpc away) was observed using the Chandra X-ray Observatory. The catalog contains 378 point sources within the galaxy's D25 contour, derived from 790 ks of total exposure time combining new and archival observations. The data was produced by NASA and includes classifications for sources such as supernova remnants and X-ray binaries.

Use Cases

• Classifying X-ray point sources (e.g., supernova remnants, X-ray binaries) based on spectral and temporal analysis mentioned in the description.
• Analyzing the spatial distribution of soft and hard X-ray sources relative to the galaxy's spiral arms.
• Constructing and studying the cumulative luminosity function of X-ray binaries brighter than 8 x 10^35 erg s^-1.
• Identifying time-variable sources by combining observations from 2000-2001 and 2010-2011.
• Cross-matching X-ray sources with radio survey data from the Australia Telescope Compact Array.

Strengths

• Total exposure time of 790 ks, combining deep new observations (729 ks) with archival data (61 ks).
• Catalog contains 378 identified point sources within the target galaxy, plus 80 additional sources outside its contour.
• Includes multi-wavelength classification, with at least 87 sources identified as likely supernova remnants and 47 detected in radio.
• Observations were conducted in 'very faint' mode to optimize background subtraction.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

X-ray observations from the Chandra ACIS-S instrument, processed using ACIS EXTRACT (AE).

Time Range

Observations from 2000, 2001, and a series from December 2010 to December 2011.

Freshness

Last updated 2026-03-13 16:57:20.683324; freshness should be verified.

Geography

The nearby galaxy M 83, located 4.61 Mpc away.