A wide-angle Stokes polarimeter for the BOOTES network of telescopes. Optical and mechanical design

1Syniavskyi, II, 2Castro-Tirado, A, 1Ivanov, Yu.S, 3Guziy, SS, 4Oberemok, EA
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
2Institute of Astrophysics of Andalusia, Granada, Spain
3Institute of Astrophysics of Andalusia, Granada, Spain; National University "Kyiv-Mohyla Academy", Kyiv, Ukraine
4Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine; Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Space Sci. & Technol. 2024, 30 ;(2):93-108
https://doi.org/10.15407/knit2024.02.093
Publication Language: English
Abstract: 
We describe the imaging polarimeter EDIPO (Efficient & Dedicated wide-field Imaging Polarimeter) as a part of  astronomical telescopes of the BOOTES (Burst Observer and Optical Transient Exploring System) network that is intended for the study of polarization features of the rapid processes of the gamma-ray bursts afterglow (Gamma-ray burst — GRB). The design of the polarimeter allows one to be installed on the network telescopes with a diameter of the main mirror up to 1.4 m. The EDIPO is designed to analyze the polarization parameters of linearly polarized light in the spectral range of 450—1000 nm. The polarization analyzer of the polarimeter does not contain moving elements and allows measurements of Stokes parameters I, Q, U of light in a 30'× 30' field of view simultaneously for one spectral band of the working spectral range. The optical part of the polarimeter was assembled and tested on a telescope with a mirror diameter of 1.2 m. The calibration approaches for the polarimeter-telescope system are considered.
Keywords: polarization, Stokes-polarimeter, telescope
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