Upper Sco XMM-Newton X-Ray Point Source Catalog with Optical and Near-IR Counterparts

224 X-ray sources were detected in two deep XMM-Newton observations of the Upper Scorpius star-forming region. The catalog includes cross-matched optical and near-infrared photometry from CTIO, Danish 1.54m, 2MASS, and DENIS observations, identifying 22 photometric members. This table was created by NASA's HEASARC in March 2007 based on CDS catalog data.

Use Cases

• Identify young stellar X-ray sources based on cross-matched optical and near-infrared photometry.
• Study the X-ray properties of pre-main-sequence stars in a 5-million-year-old star-forming region.
• Correlate X-ray luminosity with stellar parameters using multi-wavelength counterpart data.
• Analyze the population of X-ray sources in a specific region of the Upper Scorpius subgroup.

Strengths

• Includes 224 detected X-ray sources from two deep exposures (~53 ks and ~43 ks).
• Provides cross-matched data from multiple catalogs (2MASS, DENIS, CTIO, Danish 1.54m).
• Identifies 22 Upper Scorpius photometric members among the X-ray sources.

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 2007; freshness should be verified for current research.

Provenance

Source

NASA HEASARC, based on CDS catalog J/A+A/459/199.

Collection Method

Analysis of XMM-Newton X-ray observations cross-matched with ground-based optical and near-infrared catalogs.

Freshness

Last updated 2026-03-13 19:38:49.836712; freshness should be verified.

Geography

Two regions in the Upper Scorpius subgroup (centered at specific J2000.0 RA/Dec coordinates).