Poster Open Access

In the shade of Dorado group giants: tracing the eventful life of member galaxies in optical and Far UV

Rampazzo, Roberto; Mazzei, P.; Marino, A.; Cattapan, Arianna; Ciroi, S.; Iodice, Enrichetta; Grado, Aniello; Held, E. V.; Limatola, Luca; Spavone, Marilena

Groups are key to understand the galaxy evolution: they contain most of the galaxies in Universe at present day, most of the stellar mass and have their own way to transform galaxies from active to passive. Our aim is understanding the mechanisms driving the co-evolution of galaxies in nearby groups. Rich of early-type galaxies showing shells and FUV bright rings, Dorado is a nearby (16.9 Mpc Firth et al. 2006, MNRAS, 372, 1856) loose (about 10 deg2 , Carrasco et al 2001, AJ, 121, 148) association still non-virialized, likely a way station towards rich, virialized groups. We are mapping the group via deep VST g, r SDSS filters and (hopefully) Astrosat-UVIT; Far and Near UV imaging from GALEX and Swift-UVOT are also available. Our targets include the giant earlytype galaxies (ETGs) marking the group backbone as well as their intermediate companions and dwarfs whose luminosity function is still largely incomplete. The optical and Far UV analysis is shedding light on the Dorado evolving phase, showing residual star formation in evolved giant ETGs.

Files (27.6 MB)
Name Size
Rampazzo_Dorado.pdf
md5:ba36cc6d62130048b2622d74638aa279
27.6 MB Download
86
39
views
downloads
All versions This version
Views 8686
Downloads 3939
Data volume 1.1 GB1.1 GB
Unique views 8484
Unique downloads 3636

Share

Cite as