Optical linear polarization measurements of quasars obtained with the 3.6m telescope at the La Silla Observatory

Abstract

We report 192 previously unpublished optical linear polarization measurements of quasars obtained in April 2003, April 2007, and October 2007 with the European Southern Observatory Faint Object Spectrograph and Camera (EFOSC2) instrument attached to the 3.6m telescope at the La Silla Observatory. Each quasar was observed once. Among the 192 quasars, 89 have a polarization degree $p\ge 0.6\%$, 18 have $p\ge 2\%$, and two have $p\ge 10\%$.

arXiv commentAccepted for publication in A&A

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• Optical linear polarization measurements of quasars obtained with the Very Large Telescope at Paranal Observatory
• Improved Constraints on Anisotropic Birefringent Lorentz Invariance and CPT Violation from Broadband Optical Polarimetry of High Redshift Galaxies