IC 1805 XMM-Newton X-Ray Source Catalog of 191 Stellar Objects

NASA HEASARC provides a catalog of 191 X-ray sources detected by the XMM-Newton satellite in the direction of the IC 1805 open cluster. The data was cross-correlated with optical and infrared catalogs and published in a 2016 reference paper. This catalog focuses on the X-ray properties of early-type stars, including the O4 If+ star HD 15570.

Use Cases

• Testing theoretical scaling relations between X-ray and bolometric luminosities of O-type stars based on the described stellar population.
• Investigating X-ray flux stability over time based on the mention of comparisons with archival observations.
• Identifying and analyzing low-mass pre-main sequence stars from the catalog's brightest X-ray sources.
• Studying binary star systems and orbital solutions using the optical spectroscopy data referenced in the description.

Strengths

• Contains 191 distinct X-ray sources, providing a substantial sample for analysis.
• Coordinates were cross-correlated with multiple optical and IR catalogs using a defined 4-arcsecond radius.
• Data originates from the XMM-Newton satellite, a major space observatory, and is served by NASA HEASARC.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is known (191), but the number of features per row and data completeness are unknown.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC)

Collection Method

Observations from the XMM-Newton satellite's EPIC detectors, cross-correlated with optical/IR catalogs.

Time Range

null

Freshness

Last updated 2026-03-13 20:13:54.692770; freshness should be verified.

Geography

Direction of the IC 1805 open cluster in space.