2026/08/01 by David Le Mignant, Coralie Neiner, Jean-Claude Bouret +10
Physics and Astronomy · #astro-ph.IM
10 pages, 4 figures, SPIE Astronomical Telescopes + Instrumentation 2026
arxiv created 2026/08/01 · arxiv updated 2026/08/04
Pollux is a high-resolution spectrograph and spectropolarimeter (R from 65000 to 100000) covering a spectral range from 100 nm to 1750 nm, proposed by a European consortium to equip NASA s Habitable Worlds Observatory (HWO). This instrument aims to revolutionize the study of stellar and (exo)planetary systems, as well as cosmic ecosystems, by combining high spectral resolution, broad and simultaneous spectral coverage, temporal stability, and unique UV spectropolarimetric capabilities, thus opening a new parameter space for astrophysics.