Euclid: the potential of slitless infrared spectroscopy: a z = 5.4 quasar and new ultracool dwarfs
Banados E, Le Brun V, Belladitta S, Momcheva I et autres
© 2025 The Author(s). We demonstrate the potential of Euclid 's slitless spectroscopy to discover high-redshift (5$]]>) quasars and their main photometric contaminant, ultracool dwarfs. Sensitive infrared spectroscopy from space is able to efficiently identify both populations, as demonstrated by Euclid Near-Infrared …