13 papers
WST, the Wide-field Spectroscopic Telescope: dispersing elements
Andrea Bianco, Michele Frangiamore, Anna Brucalassi +7
The Wide-field Spectroscopic Telescope (WST) is a proposed 12-m class facility entirely dedicated to spectroscopic surveys, combining a high-multiplex multi-object spectrograph ope…
Pollux: high-resolution precision spectroscopy and polarimetry for the Habitable Worlds Observatory
David Le Mignant, Coralie Neiner, Jean-Claude Bouret +11
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 equi…
Impact of microlens shape on the performance of Laser Guide Star wavefront sensors for ELT-class telescopes
Paul Rouquette, Benoit Neichel, Cédric Taisir Heritierc +4
The paper quantifies how imperfections in microlens shapes degrade the centroid accuracy of laser guide star Shack‑Hartmann wavefront sensors on ELT‑class telescopes and evaluates…
The Wide-field Spectroscopic Telescope (WST): design trade-offs for the low-resolution multi-object spectrograph instrument
Dimitri Buffat, Will Saunders, Kjetil Dohlen +10
The Wide-field Spectroscopic Telescope (WST) is a planned 12-meter-class dedicated spectroscopic facility designed to address key scientific challenges through large spectroscopic…
Pollux: decisions affecting the optical architecture of a high-resolution spectrograph and polarimeter for the Habitable Worlds Observatory
Eduard Muslimov, Luca Fossati, Coralie Neiner +5
POLLUX is a candidate European instrumental contribution to the Habitable Worlds Observatory. It is a high-resolution spectrograph with polarimetric capabilities, covering from the…
HARMONI at ELT: Reoptimization of the NGSS natural guide star sensors system for MCAO compatibility
Kjetil Dohlen, David Le Mignant, Anne Bonnefoi +16
HARMONI is the first-light, adaptive optics assisted, near-IR integral field spectrograph for the ELT. It covers a spectral range from below 800nm to 2400nm with resolving powers f…