Advanced X-ray Astrophysics Facility /AXAF/ - Performance requirements and design considerations

Computer Science – Performance

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Spaceborne Astronomy, X Ray Astronomy, X Ray Telescopes, Design Analysis, Focal Plane Devices, High Resolution, Mirrors, Performance Prediction, Service Life

Scientific paper

The Advanced X-ray Astrophysics Facility (AXAF) is to be a free flying national X-ray observatory that is Shuttle-launched (in mid-1987), maintainable on-orbit, and retrievable. The design lifetime is over 10 years. The AXAF is conceived as an X-ray telescope with six nested Wolter type I mirrors (maximum aperture of 1.2 m), a focal length of 10 m, and interchangeable and replaceable focal plane instruments. The optics will provide 0.5-arcsec imagery over a several arcminute field and somewhat reduced resolution over 1 deg in the X-ray band from 0.1 to 8 keV. The performance requirements and design of the facility are discussed and comparisons made with present X-ray observatories. The scientific objectives of the AXAF is also discussed briefly.

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