Long-Term Stability of the Crab Pulsar's X-ray and IR Pulse Profiles

Details Long-Term Stability of the Crab Pulsar's X-ray and IR Pulse Profiles Long-Term Stability of the Crab Pulsar's X-ray and IR Pulse Profiles

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...19111115f&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #111.15; Bulletin of the American Astronomical Society, Vol. 29, p.1393

Astronomy and Astrophysics

Astronomy

Scientific paper

We present high signal-to-noise, high time-resolution infrared (IR) and X-ray pulse profiles of the Crab Nebula pulsar taken over time baselines ranging from 10 months to 5 years. We place upper limits on any variability in the pulse profiles on timescales from the 33-ms pulse period down to the limiting resolution of the observations ( ~ 20 mu s). We discuss the implications of the pulse profile stability for models of the pulsar emission mechanism and for the suggested long-term modulation of the gamma-ray pulse profile.

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