EUVE Second Source Catalog: 737 Extreme Ultraviolet Objects

A catalog of 737 unique extreme ultraviolet (EUV) emitting objects detected by the Extreme Ultraviolet Explorer (EUVE) satellite. The catalog, published by Bowyer et al. in 1996, includes 514 objects from an all-sky survey, 35 from deep-survey observations, and 188 from other mission phases. Plausible optical, X-ray, radio, or UV identifications are available for about 65% of the EUV sources.

Use Cases

• Cross-matching EUV sources with optical or X-ray catalogs based on the provided alternative identifications.
• Analyzing the distribution and properties of EUV-emitting objects from different survey modes (all-sky, deep-survey, other).
• Studying the completeness and sensitivity of the EUVE mission across different observation strategies and exposure times.

Strengths

• Includes 737 unique EUV sources with detailed provenance from multiple survey modes.
• Provides cross-identifications at other wavelengths (optical, X-ray, radio, UV) for approximately 65% of the entries.
• Catalog structure distinguishes between 514 all-sky survey, 35 deep-survey, and 188 other mission detections.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Flux limits and detection thresholds vary widely for sources from 'other' mission phases.

Provenance

Source

National Aeronautics and Space Administration (NASA), HEASARC.

Collection Method

Observations from the Extreme Ultraviolet Explorer (EUVE) satellite, compiled and published by Bowyer et al. in 1996.

Time Range

Observations through at least December 24, 1994.

Freshness

Last updated 2026-03-13 16:51:03.776805; freshness should be verified.

Geography

All-sky and ecliptic plane coverage.