From PolarLight to eXTP: a re-detection of soft X-ray polarization in the Crab and future perspective
Abstract
PolarLight is the first dedicated astronomical soft X-ray polarimeter in space since OSO-8. It was launched into a low-Earth orbit on October 29, 2018, onboard a CubeSat. With the first-year data, polarization in the energy range of 3-4.5 keV from the Crab is re-detected, consistent with that obtained with OSO-8. A possible variation in polarization is revealed after a glitch of the Crab pulsar on July 23, 2019. Here I will show preliminary results with PolarLight, and what one can do with eXTP, a future mission concept in collaboration between China and ESA capable of large area soft X-ray polarimetry.
- Publication:
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43rd COSPAR Scientific Assembly. Held 28 January - 4 February
- Pub Date:
- January 2021
- Bibcode:
- 2021cosp...43E1659F