BEASTS IN THE BUBBLES

A Cycle 1 JWST NIRSpec IFU Program to reveal the incredible stories
five ultra-luminous galaxies at the beginning of our Universe

Beasts in the Bubbles: Characterizing Ultra-Luminous Galaxies at Cosmic Dawn

Program Figure

Overview

The "Beasts in the Bubbles" program aims to confirm redshifts and measure star-formation rates, stellar masses, and dust extinction for the five most luminous galaxies at 9

These massive, luminous galaxies, observed only 500 million years after the Big Bang, serve as ideal tracers of primordial dark matter structures. Their existence at these early times challenges the current paradigm of early galaxy formation and evolution. This program will reveal how these remarkable cosmic beasts rapidly built up their stellar mass.

Scientific Goals

The key scientific goals of the program include deriving record-breaking redshifts for rare, ultra-bright galaxies through the detection of optical emission lines, confirming the power-law nature of the bright-end of the 9