BEASTS IN THE BUBBLES

A JWST NIRSpec IFU program revealing the stories of
the most luminous galaxies at cosmic dawn

Beasts in the Bubbles

Characterizing Ultra-Luminous Galaxies at Cosmic Dawn

BEASTS (JWST Cycle 1, GO 2659) used NIRSpec IFU PRISM spectroscopy to observe five of the brightest z ≈ 9 galaxy candidates in COSMOS. Three are confirmed at z = 7.2–8.2, each resolved into two or three components. See the first results.

NIRSpec IFU images and PRISM spectra of BEASTS-1, BEASTS-2 and BEASTS-3

Coming next: Euclid × JWST

Cycle 5 program GO 11286 (PI Allen, co-PIs Oesch and Weaver) will observe seven of the most luminous z ≈ 9 candidates found by Euclid. More.