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The Broad Band X-ray Telescope (BBXRT)

STS-35 (Columbia) with payload doors open

The Broad Band X-ray Telescope (BBXRT) was flown on the Space Shuttle Columbia (STS-35) as part of the ASTRO-1 payload. It was designed and built at the Laboratory for High Energy Astrophysics at NASA/GSFC.

BBXRT was the first focusing X-ray telescope operating over a broad energy range with a moderate energy resolution.

Mission Characteristics

Lifetime
2–11 Dec 1990
Special Features
Instrument in the cargo bay of the Space Shuttle Columbia

Payload

Solid State Spectrometer

Energy Range
0.3–12 keV
Effective Area
765 cm2 at 1.5 keV
300 cm2 at 7 kev
Field of View
17.4′ diameter; 4′ central pixel diameter
Energy Resolution
90 eV at 1 keV
150 eV at 6 keV
Two co-aligned telescopes, each with a segmented Si(Li) solid state spectrometer (detector A and B) composite of five pixels.

Science Highlights

  • Resolved iron K line in the binaries Cen X-3 and Cyg X-2
  • Detected evidence of line broadening in NGC 4151
  • Studied cooling flow in clusters

Archive

The HEASARC hosts spectra, lightcurves, and raw data

BBXRT at HEASARC More about BBXRT Gallery Bibliography

All Missions Time Ordered List Energy Ordered List