Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...230l..15s&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 230, May 15, 1979, p. L15-L19. Navy-supported research.
Astronomy and Astrophysics
Astrophysics
32
Astronomical Spectroscopy, Crab Nebula, Energy Spectra, X Ray Spectra, Continuous Spectra, Emission Spectra, Line Spectra
Scientific paper
An observation of the Crab Nebula in the 20-250-keV range indicates a
break in the spectrum at about 80 keV, with the power-law index changing
by 0.43 + or - 0.10. A 2-sigma upper limit of 0.0015 photon/sq cm-sec is
placed on a line feature in the Crab spectrum at 73.3 keV.
Johnson Neil W.
Kurfess James D.
Strickman Mark S.
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