PAOLO: a Polarimeter Add-On for the LRS Optics at a Nasmyth focus of the TNG
astro-ph.IM
/ Authors
S. Covino, E. Molinari, P. Bruno, M. Cecconi, P. Conconi, P. D'Avanzo, L. di Fabrizio, D. Fugazza, M. Giarrusso, E. Giro
and 3 more authors
/ Abstract
We describe a new polarimetric facility available at the Istituto Nazionale di AstroFisica / Telescopio Nazionale Galileo at La Palma, Canary islands. This facility, PAOLO (Polarimetric Add-On for the LRS Optics), is located at a Nasmyth focus of an alt-az telescope and requires a specific modeling in order to remove the time- and pointing position-dependent instrumental polarization. We also describe the opto-mechanical structure of the instrument and its calibration and present early examples of applications.