Discovering Dwarf Galaxy Satellites: The Satellite Census of NGC 2403

Jeffrey L. Carlin and his team studied the dwarf galaxies around NGC 2403, an LMC-sized galaxy, as part of the MADCASH survey. Using deep imaging, they identified two true satellite galaxies, DDO 44 and MADCASH-1, and confirmed their detection sensitivity for galaxies as faint as -7.5 magnitude. Their findings align with theoretical predictions and offer a foundation for understanding satellite galaxy populations around galaxies like NGC 2403, paving the way for future surveys to reveal more faint, distant dwarf galaxies.