EUVE RAP2: Second Extreme Ultraviolet Explorer Right Angle Program Catalog

The catalog covers 17% of the sky and contains information on 235 extreme ultraviolet sources, including 169 new detections. NASA HEASARC created this database in May 2002, derived from published tables, based on observations made after the first catalog in January 1994. It provides source count rates and probable identifications from four specific photometric wavelength bands.

Use Cases

• Classifying stellar populations based on the described source distribution (e.g., 45% late-type stars, 8% white dwarfs).
• Analyzing extreme ultraviolet source detections and count rates from the four specified wavelength bands.
• Cross-referencing new EUV source detections with existing optical catalogs and literature for identification.
• Studying the sky coverage and detection efficiency of the EUVE Right Angle Program survey method.

Strengths

• Contains 235 EUV sources with 169 being new detections not in the previous catalog.
• Provides photometric data in four distinct wavelength bands (100, 200, 400, and 550 Angstroms).
• Includes source classifications for a majority of entries, with specific percentages provided (e.g., 45% late-type stars).

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 temporal and instrumental bias inherent to the specific EUVE RAP survey.

Provenance

Source

National Aeronautics and Space Administration (NASA) HEASARC, derived from ADC/CDS Catalog J/AJ/117/2466.

Collection Method

Observations from the Extreme Ultraviolet Explorer's Right Angle Program (RAP) all-sky survey telescopes.

Time Range

Observations made since January 1994 (post-first catalog).

Freshness

Last updated 2026-03-13 16:50:50.691864; freshness should be verified.

Geography

Covers 17% of the sky.