First Maps of the Soft X-Ray Diffuse Background from the ROSAT XRT/PSPC All-Sky Survey

Details First Maps of the Soft X-Ray Diffuse Background from the ROSAT XRT/PSPC All-Sky Survey First Maps of the Soft X-Ray Diffuse Background from the ROSAT XRT/PSPC All-Sky Survey

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...454..643s&link_type=abstract

Astrophysical Journal v.454, p.643

Astronomy and Astrophysics

Astronomy

190

Surveys, X-Rays: Galaxies, X-Rays: General, X-Rays: Ism

Scientific paper

This paper presents an initial version of the diffuse background results from the ROSA T soft X-ray all-sky survey. These maps cover ˜98% of the sky in the ¼ keV, ¾ keV, and 1.5 keV bands, with ˜2° angular resolution and high sensitivity for low surface brightness extended features. The effects of non-X-ray contamination and X-rays of solar system origin have been eliminated to the greatest possible extent, but discrete X-ray sources have not been removed. The much improved angular resolution, statistical precision, and completeness of coverage of these maps reveal considerable structure over the entire 0.1-2.0 keV energy range that was not observed previously. The data agree well with previous all-sky surveys in terms of absolute normalization and zero point.

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