The X-ray structure of the Crab Nebula
Abstract
Einstein telescope and EXOSAT data were used to assess a model of the interaction of the Crab Nebula and X-ray energy centered on a pulsar. The half power radius of the EXOSAT picture of 40 is larger than that of EINSTEIN 34 due to the different energy bands. The model predicts a ratio for these radii of 1.112, in good agreement with the measured value. The EXOSAT-LE2 light curve (obtained from 1/4 of the whole data) was derived and the pulse fluxes were determined. Whereas in the EINSTEIN picture the pulsed flux makes up 3.9 + or - 0.2 % of the total nebular flux, the ratio in the EXOSAT data is 2.8 %, consistent with the extrapolation of the known pulse ratios.
- Publication:
-
Contributions of the X-Ray Astronomy Group
- Pub Date:
- November 1984
- Bibcode:
- 1984xras.rept....1B
- Keywords:
-
- Crab Nebula;
- Pulsars;
- Stellar Structure;
- X Ray Sources;
- Astronomical Models;
- Exosat Satellite;
- Heao 2;
- Synchrotron Radiation;
- Astronomy