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One Piece at a Time—Adding to the Puzzle of S0 Formation

by Carlos Escudero 1,2,*,†, Favio Faifer 1,2,† and Lilia Bassino 1,2,†
1
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, La Plata B1900FWA, Argentina
2
Instituto de Astrofísica de La Plata (IALP; CCT La Plata, CONICET-UNLP), Paseo del Bosque s/n, La Plata B1900FWA, Argentina
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Duncan A. Forbes and Ericson D. Lopeze
Galaxies 2017, 5(3), 37; https://doi.org/10.3390/galaxies5030037
Received: 29 June 2017 / Revised: 1 August 2017 / Accepted: 3 August 2017 / Published: 7 August 2017
(This article belongs to the Special Issue On the Origin (and Evolution) of Baryonic Galaxy Halos)
Understanding the origin of galaxies remains a topic of debate in the current astronomy. In this work, we have focused on lenticular (S0) galaxies located in low-density environments, using their associated globular cluster (GC) systems as a tool. Initially, we have started the study of three S0 galaxies—NGC 2549, NGC 3414 and NGC 5838—using photometric data in several filters obtained with the GMOS camera mounted on the Gemini North telescope. The different GC systems, as well as their host galaxies, have shown particular features, such as multiple GC subpopulations and low-brightness substructures. These pieces of evidence show that the mentioned galaxies have suffered several merger/interaction events, even the accretion of satellite companions, probably causing their current morphologies. View Full-Text
Keywords: globular cluster; lenticular galaxies; galaxy halos globular cluster; lenticular galaxies; galaxy halos
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Escudero, C.; Faifer, F.; Bassino, L. One Piece at a Time—Adding to the Puzzle of S0 Formation. Galaxies 2017, 5, 37.

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