Scaling relations for globular cluster systems in early-type galaxies. II. Is there an environmental dependence?

DE BÓRTOLI B.J.; CASO J.P.; ENNIS A.I; BASSINO, L.P.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2022 vol. 510 p. 5725 - 5742

0035-8711

The current properties of globular cluster systems (GCSs) are the result of the evolutionexperienced by their host galaxies, which shape the richness of the GCS as well as its spatialdistribution. We carryoutan analysis of the projected radial distribution of globular clustersfor a sample of almost 30 early-type galaxies (ETGs) of intermediate and low luminosity,located in cluster environments (Virgo, Fornax and Coma). We also include in the study sixETGs, for which the parameters of their GCS radial profiles are publicly available. The finalanalysis is performed on an enlarged sample(∼100GCSs), by adding the GCSs of ETGsfrom our previous paper (Paper I). Scaling relations involving different parameters of the GCSsare obtained for the whole sample and complement those obtained in Paper I. Several of suchrelations clearly point to their dependence on the environmental density. Finally, the resultsare analysed in the literature context