The globular cluster system of nearby spirals through multi-band imaging surveys

JUAN PABLO CASO; ANA I. ENNIS; ANA CHIES SANTOS; BRUNO DE BÓRTOLI; DE SOUZA, RAFAEL S; MARCO CANOSSA; PEDRO FLORIANO; EDUARDO GODOY; PEDRO LOPES; NICOLE MIRANDA; CHARLES BONATO

San Juan

Congreso; Reunión Anual de la Asociacion Argentina de Astronomía; 2023

Instituto de Astronomía y Física del Espacio, CONICET-UBA

he assembly of globular cluster systems (GCSs) has proven to be tightly related to the evolutionaryprocesses experienced by the host galaxies. The analysis of their current properties provides valuable information about the mass-growth and star-forming histories of the galaxies. Then, an appropriate study of the GCS is desirable to achieve a comprehensive description of its host galaxy. The large field of view of the Javalambre Photometric Local Universe Survey (J-PLUS) allows for the analysis of the full extension of the GCS in nearby spirals, that usually span across tens of arcminutes. Its photometry is deep enough to reach the turn-over magnitude, which is necessary for an accurate description of the GCS, and the large set of broad and narrow bands become a powerful tool for stellar population studies. In the current contribution, we aim to present preliminary results of the photometrical analysis for the GCSs associated with several spirals at distances of 3 − 5 Mpc. We analysed the projected extension, total population, and colour gradients of the GCS. Their comparison with scaling relations from the literature provides useful information about the build-up of GCSs in spirals and the overall evolution of these galaxies. For bright GCs, we estimated population synthesis through the code CIGALE and compared the results with spectroscopic measurements.