A possible line feature at 73 keV from the Crab Nebula

Details A possible line feature at 73 keV from the Crab Nebula A possible line feature at 73 keV from the Crab Nebula

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...231..896l&link_type=abstract

Astrophysical Journal, Part 1, vol. 231, Aug. 1, 1979, p. 896-905.

Other

30

Crab Nebula, Energy Spectra, Gamma Rays, Line Spectra, X Ray Spectra, Balloon-Borne Instruments, Energy Dissipation, Radiation Detectors

Scientific paper

Evidence is reported for a possible line feature at 73 keV from the Crab Nebula. The experiment was conducted with a balloon-borne high-resolution gamma-ray spectrometer on June 10, 1974, over Palestine, Texas. The intensity and the width of the line derived from the fitting of these data are approximately 0.0038 photon per (sq cm-sec) and less than 4.9 keV FWHM, respectively. The line is superposed on a power-law continuum of 11.2 E to the -2.16 photons per (sq cm-keV) in the energy range from 53 to 300 keV, which is consistent with other measurements of the Crab Nebula spectrum.

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