13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

The Crab pulsar: Examining its profile and deriving high precision X-ray ephemerides

15 Dec 2015, 17:55
3m
Level 0, Room 23 (International Conference Centre Geneva)

Level 0, Room 23

International Conference Centre Geneva

Speaker

Guillaume Belanger (ESA)

Description

We present here the results of an analysis of 15 years of regular XMM-Newton EPIC pn observations of the Crab pulsar. The analysis of its pulse profile is based on a multi-harmonic decomposition using a new periodogram statistic which is ideally suited for studying the details of the characteristics of peaked pulse profiles such as the Crab’s, especially in time-tagged event data. The decomposition and generalised modified Rayleigh statistic are both applied and presented here for the first time. Their application is extended to study the time-dependent evolution of the pulsar’s emission over this 15 year period and 70 individual observations to derive high precision ephemerides based solely on the X-ray data.

Primary author

Presentation Materials