New constraints on very light pseudoscalars
arXiv:1204.6614
Abstract
Nearly massless axion-like particles are of interest for astrophysical observations, and some constraints on their parameter space do exist in the literature. Here, we propose to put new constraints on these particles using polarisation and, in particular, the polarisation differences observed between different quasar classes.
arXiv commentContributed to the "7th Patras Workshop on Axions, WIMPs and WISPs", Mykonos June 26 - July 1 2011
References in corpus (4)
- An improved limit on the axion-photon coupling from the CAST experiment
- Confirmation of the existence of coherent orientations of quasar polarization vectors on cosmological scales
- Can axion-like particles explain the alignments of the polarisations of light from quasars?
- Optical circular polarization in quasars