Cosmic X-Ray background and Earth albedo spectra with swift bat

M. Ajello, J. Greiner, G. Sato, D. R. Willis, G. Kanbach, A. W. Strong, R. Diehl, G. Hasinger, N. Gehrels, C. B. Markwardt, J. Tueller

研究成果: Article査読

133 被引用数 (Scopus)


We use Swift BAT Earth occultation data at different geomagnetic latitudes to derive a sensitive measurement of the cosmic X-ray background (CXB) and of the Earth albedo emission in the 15-200 keV band. We compare our CXB spectrum with recent (INTEGRAL, BeppoSAX) and past results (HEAO-1) and find good agreement. Using an independent measurement of the CXB spectrum we are able to confirm our results. This study shows that the BAT CXB spectrum has a normalization ̃8% ± 3% larger than the HEAO-1 measurement. The BAT accurate Earth albedo spectrum can be used to predict the level of photon background for satellites in low Earth and mid inclination orbits.

ジャーナルAstrophysical Journal
出版ステータスPublished - 2008 12 20

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

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