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Seminarium odbywa się w Piwnicach w sali wykładowej budynku Radioastronomii. Początek o godzinie 11.15.
Udział w seminarium w trybie zdalnym za pośrednictwem BigBlueButton (BBB).

9 listopada 2026

„ANDES at the ELT: Attempting the detailed atmospheric characterization of terrestrial worlds”

prof. Enric Pallé
Instituto de Astrofisica de Canarias

Streszczenie:
Ground-based facilities like the future ANDES spectrograph on the ELT are crucial pathfinders, developing the techniques and setting the scientific priorities to characterize the atmospheres of dozens of terrestrial exoplanets. ANDES, with its unique combination of high spectral resolution (R > 100,000) and high-contrast capabilities via adaptive optics, aims to conduct the first detailed atmospheric studies of Earth-sized planets in the habitable zones of nearby M-dwarfs. This talk will present the transformative potential of ANDES for atmospheric science, focusing on its two primary methods: high-dispersion transmission spectroscopy and high-contrast, high-resolution (HCHR) spectroscopy in reflected light. We will show that ANDES can detect molecular features in the atmospheres of dozens of transiting rocky planets. More importantly, its HCHR mode will for the first time unlock the study of non-transiting planets in reflected light, targeting a „golden sample” of nearby habitable-zone worlds. We will present new, advanced end-to-end simulations of ANDES performance that move beyond simple cross-correlation and provide invaluable insights into atmospheric dynamics, chemistry, and the potential for biosignatures. Furthermore, ANDES will operate in synergy with other flagship missions (JWST, ARIEL, and PLATO), providing complementary high-resolution data to break degeneracies in JWST and ARIEL retrievals.