October 1, 2019 updates Posted on October 1, 2019June 28, 2020 by Doug Loss The polarimetric imaging mode of VLT/SPHERE/IRDIS I: Description, data reduction and observing strategy https://arxiv.org/abs/1909.13107 The polarimetric imaging mode of VLT/SPHERE/IRDIS II: Characterization and correction of instrumental polarization effects https://arxiv.org/abs/1909.13108 Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS https://arxiv.org/abs/1909.13527 An examination of the effect of the TESS extended mission on southern hemisphere monotransits https://arxiv.org/abs/1909.13546