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Volume 288 - Accretion Processes in Cosmic Sources (APCS2016) - ACCRETION ONTO WHITE DWARFS, NEUTRON STARS & BLACK HOLES
Observing polarimetric variability from CVs to BLAZARS
S. Potter
Full text: pdf
Pre-published on: 2018 April 13
Published on: 2018 May 16
The HIgh-speed Photo-POlarimeter of the South African Astronomical Observatory was designed and built for measuring the polarization of highly variable sources. To demonstrate its capabilities we present new detailed optical photo-polarimetric observations of two objects. Firstly of the blazar PKS 2155-304 where we recently showed the discovery of polarized quasi-periodic variations. Secondly of the recently-discovered white dwarf pulsar AR Scorpii. Our extensive dataset reveals that the polarized emission is remarkably stable and repeatable with spin, beat and orbital modulations.
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