12-20 July 2017
BEXCO
Asia/Seoul timezone
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Contribution

BEXCO - Room F(201/202/203/204)

[GA128] POLAR measurements of the Crab pulsar

Speakers

  • Bobing WU

Primary authors

  • Mingyu GE (Institute of High Energy Physics, CAS)

Co-authors

  • Bobing WU (Institute of High Energy Physics, CAS)

Description

POLAR is a Compton polarimeter sensitive in the 50 to 500 keV energy range. The Crab pulsar is an import target for POLAR on board the Chinese space laboratory Tiangong-2. With the its large Field Oof View (FoOV), POLAR detected significant pulsed signals from the Crab pulsar which is visible by POLAR in about half of all observation time. In this poster, we present the preliminary results including the pulse profile, timing and polarization analysis. First, we show the highly significant pulse profile observed by POLAR which is compared to the results of other detectors including Fermi/LAT and INTEGRAL. Second, we find that the timing of the Crab pulses is accurately measured, which provides a unique verification and calibration to the POLAR timing system. Finally, the preliminary polarization measurement of the Crab pulsar, together with calibration and simulation results, is discussed.