# Dynamical Masses for a Complete Census of Local Dwarf Galaxies

## TL;DR

This paper discusses the importance of upcoming wide-field surveys and spectroscopic follow-up for understanding the properties of local dwarf galaxies, which are crucial for testing galaxy formation models and dark matter theories.

## Contribution

It highlights the need for large-scale spectroscopic surveys with 6-10m telescopes and multiplexed spectroscopy on larger apertures to maximize scientific returns from future imaging data.

## Key findings

- Upcoming surveys will discover fainter, more distant dwarf galaxies.
- Spectroscopic data is essential for extracting scientific insights.
- Combining imaging and spectroscopy enhances understanding of galaxy formation.

## Abstract

The 2020s are poised to continue the past two decades of significant advances based on observations of dwarf galaxies in the nearby universe. Upcoming wide-field photometric surveys will probe substantially deeper than previous data sets, pushing the discovery frontier for new dwarf galaxies to fainter magnitudes, lower surface brightnesses, and larger distances. These dwarfs will be compelling targets for testing models of galaxy formation and cosmology, including the properties of dark matter and possible modifications to gravity. However, most of the science that can be extracted from nearby dwarf galaxies relies on spectroscopy with large telescopes. We suggest that maximizing the scientific impact of near-future imaging surveys will require both major spectroscopic surveys on 6-10m telescopes and multiplexed spectroscopy with even larger apertures.