PoS - Proceedings of Science
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: April 13, 2018
Published on: May 16, 2018
Abstract
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.
DOI: https://doi.org/10.22323/1.288.0057
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