In addition to the primary SDSS photometry and spectroscopy, there are a few extra catalogs created by our collaborators that are distributed through the SAS. These Value-Added Catalogs (VACs) are listed below, and include catalogs that were released in earlier data releases.
Gyrochronology Ages for MWM stars
Rotational based ages for ~7,400 MWM GKM dwarf stars
Catalog Data
Abstract
This value added catalog contains gyrochronological ages for nearby dwarf stars, observed by Milky Way Mapper. The ages were derived using GPgyro and gyro-interp. The ages from GPgyro are most reliable for stars older than 1.5 Gyr, while those derived with gyro-interp are most reliable for ages younger than 4 Gyr. The methods used in this catalog are described in more detail in Lu et al. (2024), and Bouma et al. (2023).
Catalog last modified: 2026-07-30 12:12:10