The large-scale structure of globular clusters in the NGC 1052 group

ABSTRACT Prompted by the many controversial claims involving NGC 1052 group, including that it hosts two dark matter-free galaxies with overluminous and monochromatic globular cluster (GC) systems, here, we map out large-scale structure (LSS) of GCs over entire group. To recover LSS, use archival optical CFHT imaging data. We GC density maps, one based on universal photometric properties from simple stellar population models, spectroscopically confirmed in DF2 DF4 (the dwarf populations). Both selection methods reveal overdensities around massive as well itself, are coincident positions previously identified streams tidal features. No intragroup found connecting these structures to any galaxies. find, however, other dwarfs group hosting systems. These include RCP32 ages equivalent DF9 three similar DF4. conclude distribution does not strongly support formation scenario particular. It favours, none less, scenarios relying galaxy–galaxy interactions coeval DM-free may recently proposed bullet-dwarf formation, high-redshift galaxy models.