摘要：Context.Many ultra diffuse galaxies (UDGs) have now been identified in clusters of galaxies. However, the number of nearby UDGs suitable for detailed follow-up remain rare.Aims.Our aim is to begin to identify UDGs in the environments of nearby bright early-type galaxies from the VEGAS survey.Methods.Here we use a deepgband image of the NGC 5846 group, taken as part of the VEGAS survey, to search for UDGs.Results.We found one object with properties of a UDG if it associated with the NGC 5846 group, which seems likely. The galaxy, we name NGC 5846_UDG1, has an absolute magnitude ofMg= −14.2, corresponding to a stellar mass of ∼108M⊙. It also reveals a system of compact sources which are likely globular clusters. Based on the number of globular clusters detected we estimate a halo mass that is greater than 8 × 1010M⊙for UDG1.
关键词：engalaxies: dwarfgalaxies: formationgalaxies: star clusters: generalgalaxies: halos
