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Extra‑galactic astronomy is thriving with Euclid’s wide‑area imaging and the James Webb Space Telescope (JWST)’s deep near‑infrared data (e.g. Adamo et al., 2024), uncovering insights on galaxy and structure formation in the. Photometric redshifts, vital for Euclid’s cosmology inferences, especially those from the earliest clusters, face challenges at cosmic noon (𝑧 ≈ 1 − 3) due to the faintnes of the galaxies and difficulties of observing in the near‑infrared sky. JWST’s NIRCam grism spectroscopy is highly complementary to the standard spectroscopic redshift surveys from Euclid and from the ground, as it excels in identifying faint galaxies at high‑redshift emission‑line tracers of star formation.

Adamo A., et al., 2024, arXiv e‑prints, p. arXiv:2405.21054, doi:10.48550/arXiv.2405.21054

Project Members

Lead: J. Matthee

Other members: I. Kramarenko

Primary researchers involved: J. Matthee, T. Schrabback