• Organization: National Institute of Standards and Technology
• Updated: 2020-07-09 00:00:00

An implementation in Julia of a library to make programmatically available the mass absorption and other data provided in the "X-Ray Form Factor, Attenuation, and Scattering Tables - NIST Standard...

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• Organization: National Institute of Standards and Technology
• Updated: 2005-08-01 00:00:00

This database collects tables and graphs of the form factors, the photoabsorption cross section, and the total attenuation coefficient for any element (Z <= 92). Version 2.1

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This catalog presents some of the results from 3 deep ROSAT High Resolution Imager (HRI) observations of the Orion Nebula star-forming region. The fields covered by the X-ray images contain over...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This contains some of the results from the first high spatial resolution X-ray study of the massive star-forming region NGC 6357, which were obtained in a 38 ks Chandra/ACIS observation. Inside...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

A very sensitive X-ray investigation of the giant H II region N11 in the Large Magellanic Cloud (LMC) was performed using the Chandra X-ray Observatory in which 165 point sources were detected....

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