Timing analysis of four years of COMPTEL data on PSR B1509-58
Abstract
Time series analysis have been performed in search for the periodic signal of PSR B1509-58 in the COMPTEL database. We have marginal, and self-consistent, evidence for emission in the (1.0-3.0) MeV energy band. The pulse agrees both in phase and shape with that observed by OSSE and GINGA. The lack of pulsations in the (3.0-10.0) MeV range is in conflict with an extrapolation of the γ-ray spectrum observed by OSSE, indicating a spectral break for photon energies above 3 MeV. This is consistent with γ-ray attenuation in the strong magnetic field at the vicinity of the neutron star.
- Publication:
-
Proceedings of the Fourth Compton Symposium
- Pub Date:
- May 1997
- DOI:
- 10.1063/1.54017
- Bibcode:
- 1997AIPC..410..583C
- Keywords:
-
- 97.60.Gb;
- 97.60.Jd;
- 98.70.Rz;
- 97.10.Ri;
- Pulsars;
- Neutron stars;
- gamma-ray sources;
- gamma-ray bursts;
- Luminosities;
- magnitudes;
- effective temperatures colors and spectral classification