16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-126
Paper 13093-126

Optical design options for Pollux: UV spectropolarimeter project for the Habitable Worlds Observatory

On demand | Presented live 17 June 2024

Abstract

Pollux is a project of UV spectropolarimeter proposed as a European contribution for the planned NASA-led Habitable Worlds Observatory. In the present study we consider design options for four spectral channels. The two main channels operate in the range of 118-472 nm. We consider a few design options depending on the hosting telescope size and the approach to correct the aberrations in the camera part and show that the resolving power of R > 90’000 is reachable. In addition, we study 2 other channels: a visible and near infrared spectropolarimeter, which could reach up to 1050 nm or 1800 nm depending on the detector choice, and a far UV channel operating in the range of 100-120 nm. We also provide two design options with different resolution and main disperser type for these channels.

Presenter

Univ. of Oxford (United Kingdom)
Presenter/Author
Univ. of Oxford (United Kingdom)
Author
Coralie Neiner
Lab. d'Etudes Spatiales et d'Instrumentation en Astrophysique (France), Observatoire de Paris, CNRS (France), Univ. PSL, Sorbonne Univ. (France)
Author
Lab. d'Astrophysique de Marseille, Aix-Marseille Univ., Ctr. National d'Études Spatiales, CNRS (France)