Data Products associated with "A Chemodynamical Census of the Milky Way's Ultra-Faint Compact Satellites. I. A First Population-Level Look at the Internal Kinematics and Metallicities of 19 Extremely-Low-Mass Halo Stellar Systems"

Contents:

This repository contains data products associated with our ongoing census of the Milky Way's Ultra-Faint Compact Satellites.

Version 1.1 includes:

• MemberCatalogs_v1.1.tar.gz: a folder containing 17 individual UFCS member catalogs in .fits format (see note below)
• MemberTableDocumentation_v1.1.pdf: a file detailing the columns available in the member catalog files.

Note: Catalogs for Ursa Major III / UNIONS 1 and Eridanus III are not included in this repository. For these two targets, please refer to the machine-readable tables presented in Cerny et al (2025, in press) and Simon et al (2024) ApJ 976 256.

Referencing this Data: 

Users of this data should cite all of: 

• Cerny et al. 2026 (Paper I; link TBD)
• This Zenodo repository 
• Geha et al. 2026, if using catalogs for: Draco II, Koposov 1, Koposov 2, Laevens 3, Munoz 1, and/or Segue 3
  • We highly encourage citing this as well as the reduction/measurement reference if using catalogs for: Balbinot 1, DELVE 1, DELVE 4, DELVE 5, Kim 1

Anticipated Future Releases:

Future releases will likely include posterior chains for our key analyses, catalogs of non-member stars, and summary tables. Early access to these products is available upon request to the corresponding author (William Cerny).

Changelog:

• 02/15 - Release of initial version (1.0)
• 02/18 - Update to DELVE 5 member file to match arxiv preprint (v1.1)