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Moonlit sky polarization patterns from Cerro Paranal
B. Pereira, S. Gonzalez-Gaitan, A. M. Mourao +5
We investigate the polarization patterns from the moonlit sky as observed from the European Southern Observatory at Cerro Paranal. The moonlit sky background can be significant in…
Going Forward with the Nancy Grace Roman Space Telescope Transient Survey: Validation of Precision Forward-Modeling Photometry for Undersampled Imaging
David Rubin, Aleksandar Cikota, Greg Aldering +3
The Nancy Grace Roman Space Telescope (Roman) is an observatory for both wide-field observations and coronagraphy that is scheduled for launch in the mid 2020's. Part of the planne…
Tips and Tricks in linear imaging polarimetry of extended sources with FORS2 at the VLT
S. González-Gaitán, A. M. Mourão, F. Patat +5
Context: Polarimetry is a very powerful tool to uncover various properties of astronomical objects that remain otherwise hidden in standard imaging or spectroscopic observations. H…
Linear spectropolarimetry of polarimetric standard stars with VLT/FORS2
Aleksandar Cikota, Ferdinando Patat, Stefan Cikota +1
We reduced ESO's archival linear spectropolarimetry data (4000-9000Å) of 6 highly polarized and 8 unpolarized standard stars observed between 2010 and 2016, for a total of 70 epoch…