Year: 2026
Type: conference-paper
Abstract: MUSTI is a 40 cm-aperture high-resolution spectroscopic mission concept meeting the requirement of an ESA FAST mission. MUSTI is optimized for far-ultraviolet (FUV) time-domain astrophysics and is driven by the need to solve massive stars physics if we are to obtain reliable cosmic models. MUSTI therefore aims to obtain the observational breakthroughs needed to alleviate uncertainties in massive stars internal structure, stellar winds and (binary) evolution. The spacecraft architecture relies on a heritage platform and a secondary high-precision pointing system. The payload is a fixed-format echelle spectrograph covering the wavelength range 120--210 nm at a resolving power of R= 20000$. By combining high throughput, broad FUV coverage, and dedicated time-domain operations, MUSTI anticipates a strategic knowledge gap that will become acute in the next decade. Beside its main science aim, complementary surveys will cover classical Be stars, hot sub
DOI: 10.1117/12.3105376
Authors: Hugues Sana, Bart Vandenbussche, Gert Raskin, Pierre Royer, Emilie Beevers, Michael Abdul-Masih, Sylvia Ekstrom, Miriam Garcia, Beate Stelzer, Brankica Brankica Kubatova, Ylva Gotberg, Julia Bodensteiner, Lara Delbroek, Florien Driessen, Ana Inez Gomez de Castro, Karl Gordon, Calum Hawcroft, Jiri Kubat, Bethany Ludwig, Laurent Mahy, Pablo Marchant, Yael Naze, Jon Sunqvist, Valerie Van Grootel, Marc Audard, Laurent Bastide, Enrico Bozzo, Sebastian Diebold, Jerome Jacobs, Radek Melich, Lida Oskinova, Daniel Pauli, Maddalena Reggiani
Institutions: KU Leuven, Instituto de Astrofísica de Canarias, University of Geneva, Instituto Nacional de Técnica Aeroespacial, University of Tübingen, Czech Academy of Sciences, Institute of Science and Technology Austria, University of Amsterdam, Universidad Complutense de Madrid, Space Telescope Science Institute, Ghent University, Royal Observatory of Belgium, University of Liège, University of Potsdam
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7203640394