The lowest luminosity (L) Milky Way satellite galaxies represent the extreme lower limit of the
galaxy luminosity function. These ultra-faint dwarfs are the oldest, most dark matter …

Abstract The DECam Local Volume Exploration survey (DELVE) is a 126-night survey
program on the 4 m Blanco Telescope at the Cerro Tololo Inter-American Observatory in …

In the ΛCDM paradigm, the Galactic stellar halo is predicted to harbor the accreted debris of
smaller systems. To identify these systems, the H3 Spectroscopic Survey, combined with …

We present new determinations of the rest-UV luminosity functions (LFs) at z= 2–9 to
extremely low luminosities (>− 14 mag) from a sample of> 2500 lensed galaxies found …

Several lines of evidence suggest that the Milky Way underwent a major merger at z∼ 2 with
the Gaia-Sausage-Enceladus (GSE) galaxy. Here we use H3 Survey data to argue that GSE …

What are the faintest distant galaxies we can see with the Hubble Space Telescope (HST)
now, before the launch of the James Webb Space Telescope? This is the challenge taken …

We report the results of a systematic search for ultra-faint Milky Way satellite galaxies using
data from the Dark Energy Survey (DES) and Pan-STARRS1 (PS1). Together, DES and PS1 …

We report a new analysis of the Hubble Frontier Fields clusters Abell 2744 and MACS 0416
using wavelet decomposition to remove the cluster light, enabling the detection of highly …

Abstract The population of Milky Way (MW) satellites contains the faintest known galaxies
and thus provides essential insight into galaxy formation and dark matter microphysics. Here …

ABSTRACT With the Hubble Frontier Fields program, gravitational lensing has provided a
powerful way to extend the study of the ultraviolet luminosity function (LF) of galaxies at∼ 6 …