Constraints on a soft X-ray excess in the quasar 3C 279
β Scribed by A. J. Lawson; I. M. McHardy
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 346 KB
- Volume
- 300
- Category
- Article
- ISSN
- 0035-8711
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## Abstract Excess small angle Xβray scattering in solvents of differing electron density has been calculated from the crystal structures obtained for rubredoxin, trypsin inhibitor, myogen, ferricytochrome c~2~, ribonuclease S, lysozyme, nuclease, myoglobin, Ξ±βchymotrypsin, elastase, subtilisin, ca
23 different crystal forms of 19 different biological macromolecules were examined with respect to their anomalously scattering substructures using diffraction data collected at a wavelength of 2.0 A Λ(6.2 keV). In more than 90% of the cases the substructure was found to contain more than just the p