ROSAT PSPC Catalog: X-ray Survey of the Pleiades Star Cluster

99 of 214 Pleiades stars were detected in X-rays within a single ROSAT PSPC field of ~1 degree radius, with upper limits computed for the remainder. This catalog lists stellar characteristics from the literature, including rotational data, alongside their X-ray properties. The database was created by NASA HEASARC in April 2002, derived from Tables 1 and 5 of the 1996 paper by Micela et al.

Use Cases

• Correlating X-ray luminosity with stellar rotation rates based on the included rotational data.
• Studying X-ray activity across a stellar population within a single, well-defined open cluster.
• Analyzing detection statistics and upper limits for X-ray emission from low-mass stars.
• Benchmarking stellar activity models using a homogeneous dataset from a deep, targeted survey.

Strengths

• Provides a deep, targeted X-ray survey of a core region of the Pleiades cluster.
• Includes upper limits for non-detections, which is crucial for statistical completeness.
• Integrates X-ray characteristics with stellar parameters compiled from the literature.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect observational bias inherent to the single ROSAT PSPC instrument and field.

Provenance

Source

NASA HEASARC, derived from ADC/CDS Catalog J/ApJS/102/75.

Collection Method

Results from a deep X-ray survey of the Pleiades core region carried out with the ROSAT satellite's PSPC instrument.

Time Range

Survey likely conducted in the 1990s, with catalog published in 1996.

Freshness

Last updated 2026-03-13 20:03:29.938890; freshness should be verified.

Geography

Observations target the core region of the Pleiades open star cluster.