X-ray and gamma-ray observations of the pulsar PSR J0538+2817.

Details X-ray and gamma-ray observations of the pulsar PSR J0538+2817. X-ray and gamma-ray observations of the pulsar PSR J0538+2817.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rftu.proc..195s&link_type=abstract

International Conference on X-ray Astronomy and Astrophysics: Röntgenstrahlung from the Universe, p. 195 - 196

Astronomy and Astrophysics

Astrophysics

1

Pulsars: X Rays, Pulsars: Gamma Rays

Scientific paper

X-ray emission was discovered from the pulsar PSR J0538+2817 during the ROSAT All Sky Survey (RASS). Statistics in RASS is, however, neither enough for timing analysis, nor to distinguish whether it is magneto-rotation driven or cooling emission. Photon arrival time analysis with EGRET γ-ray observations revealed marginal evidence of pulsed γ-ray emission at a chance probability of 2.6×10-4 at the radio period. Spatial analysis does not reveal the point source at the radio pulsar position where γ-ray background is high and a nearby strong source contaminates, but only gives an upper limit of 1.4×1033d1.52erg/s (E ≥ 100 MeV) which does not conflict with the estimated luminosity of (0.8-2.4)×1033d1.52erg/s (E ≥ 30 MeV) from folding analysis assuming that the pulsed feature is real and corresponds to the pulsed emission from the pulsar.

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