Speaker
Description
Multiwavelength polarimetric studies are a powerful tool used to probe the structure and physics of blazar jets. In particular, high-energy polarisation measurements allow us to discriminate between hadronic and leptonic emission scenarios. However, current polarimetric instruments are limited in sensitivity, restricting such measurements to only the brightest sources and highest flux states. A new generation of X-ray and gamma-ray polarimeters is currently under development and will significantly improve these capabilities, enabling systematic studies of blazar polarisation across a larger population of sources. In this work, we investigate the detectability of blazar polarisation as a function of flux and polarisation degree, and we estimate the corresponding duty cycle expected for future instruments, i.e. the probability to detect a given source in a blind survey. We further explore how the SED class, typical variability levels, and the shape of the synchrotron component can impact the duty cycle of the instruments. This method unifies how theoretical expectations are compared to observational capabilities and aids to assess which sources, physical models, and flux states should be prioritised for polarimetric studies. We offer practical guidelines for planning future multiwavelength polarisation campaigns that aim to conclusively differentiate between competing theories.