Pollux: high-resolution precision spectroscopy and polarimetry for the Habitable Worlds Observatory

David Le Mignant; Coralie Neiner; Jean-Claude Bouret; Luca Fossati; Eduard Muslimov; Kjetil Dohlen; Anne Bonnefoi; Jean-Michel Reess; Mélissa Alliguié; Sreejith A. G.; Aquib Moine; Adrien Girardot; for the Pollux consortium

Pollux: high-resolution precision spectroscopy and polarimetry for the Habitable Worlds Observatory

Instrumentation and Methods for Astrophysics 2026-08-01 v1

Authors: David Le Mignant , Coralie Neiner , Jean-Claude Bouret , Luca Fossati , Eduard Muslimov , Kjetil Dohlen , Anne Bonnefoi , Jean-Michel Reess , Mélissa Alliguié , Sreejith A. G. , Aquib Moine , Adrien Girardot , for the Pollux consortium

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Abstract

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.

Keywords

Pollux 宜居世界观测站光谱学偏振测量高分辨率光谱仪

Cite

@article{arxiv.2608.00522,
  title  = {Pollux: high-resolution precision spectroscopy and polarimetry for the Habitable Worlds Observatory},
  author = {David Le Mignant and Coralie Neiner and Jean-Claude Bouret and Luca Fossati and Eduard Muslimov and Kjetil Dohlen and Anne Bonnefoi and Jean-Michel Reess and Mélissa Alliguié and Sreejith A. G. and Aquib Moine and Adrien Girardot and for the Pollux consortium},
  journal= {arXiv preprint arXiv:2608.00522},
  year   = {2026}
}

Comments

10 pages, 4 figures, SPIE Astronomical Telescopes + Instrumentation 2026