Star formation history of stellar systems in NGC 1316

Galaxy mergers are often considered in the literature as ideal places to study diverse starbursts triggered during the merger events. In that sense, the intermediate-age merger remnant NGC 1316 constitutes a perfect case to study complex large-scale star formation events in the Local Universe. In a...

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Detalles Bibliográficos
Autores principales:	Sesto, Leandro Alberto, Escudero, Carlos Gabriel, Faifer, Favio Raúl, Reynaldi, María Victoria, Smith Castelli, Analía Viviana, Barbosa, C. E.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2021
Materias:	Ciencias Astronómicas galaxies: interactions galaxies: elliptical and lenticular, cD galaxies: star clusters: general
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/176064
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-176064
record_format	dspace
spelling	I19-R120-10915-1760642025-02-04T04:04:08Z http://sedici.unlp.edu.ar/handle/10915/176064 Star formation history of stellar systems in NGC 1316 Sesto, Leandro Alberto Escudero, Carlos Gabriel Faifer, Favio Raúl Reynaldi, María Victoria Smith Castelli, Analía Viviana Barbosa, C. E. 2021 2025-02-03T17:58:40Z en Ciencias Astronómicas galaxies: interactions galaxies: elliptical and lenticular, cD galaxies: star clusters: general Galaxy mergers are often considered in the literature as ideal places to study diverse starbursts triggered during the merger events. In that sense, the intermediate-age merger remnant NGC 1316 constitutes a perfect case to study complex large-scale star formation events in the Local Universe. In a series of previous works we confirmed the existence of a complex globular cluster (GC) system associated with NGC 1316, which is dominated by the presence of an unusual young (~ 2.1 Gyr) and metal-rich subpopulation (—0.5 < [Z/H] < 0.5 dex), possibly created during the last merger event. In this work we used high-quality spectroscopic data from Gemini/GMOS to present an analysis of the the star formation history of three GCs associated to this galaxy. Although recent works show the presence of multiple stellar populations in old GCs in the Milky Way and nearby galaxies, this project constitutes one of the first studies to show multiple stellar populations in young extragalactic GCs. Las fusiones de galaxias se suelen mencionar en la literatura como lugares ideales para estudiar diversas explosiones de formación estelar desencadenadas durante estos eventos violentos. En ese sentido, el remanente de fusión de edad intermedia NGC 1316 constituye un escenario perfecto para estudiar los complejos eventos de formación estelar a gran escala en el Universo Local. En una serie de trabajos previos confirmamos la existencia de un complejo sistema de cúmulos globulares asociados a dicha galaxia, el cual está dominado por la presencia de una subpoblación inusualmente joven (~ 2.1 x 109 años) y rica en metales (—0.5 < [Z/H] < 0.5 dex), posiblemente creados durante el último evento de fusión sufrido por esta galaxia. En este trabajo utilizamos datos espectroscópicos obtenidos a través de Gemini/GMOS para analizar la historia de formación estelar de tres cúmulos globulares asociados a NGC 1316. Es importante mencionar que aunque trabajos recientes muestran la presencia de múltiples poblaciones estelares en cúmulos globulares en la Vía Láctea y galaxias cercanas, este proyecto constituye uno de los primeros estudios de poblaciones estelares múltiples en cúmulos estelares extragalácticos jóvenes. Asociación Argentina de Astronomía Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 225-227
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Astronómicas galaxies: interactions galaxies: elliptical and lenticular, cD galaxies: star clusters: general
spellingShingle	Ciencias Astronómicas galaxies: interactions galaxies: elliptical and lenticular, cD galaxies: star clusters: general Sesto, Leandro Alberto Escudero, Carlos Gabriel Faifer, Favio Raúl Reynaldi, María Victoria Smith Castelli, Analía Viviana Barbosa, C. E. Star formation history of stellar systems in NGC 1316
topic_facet	Ciencias Astronómicas galaxies: interactions galaxies: elliptical and lenticular, cD galaxies: star clusters: general
description	Galaxy mergers are often considered in the literature as ideal places to study diverse starbursts triggered during the merger events. In that sense, the intermediate-age merger remnant NGC 1316 constitutes a perfect case to study complex large-scale star formation events in the Local Universe. In a series of previous works we confirmed the existence of a complex globular cluster (GC) system associated with NGC 1316, which is dominated by the presence of an unusual young (~ 2.1 Gyr) and metal-rich subpopulation (—0.5 < [Z/H] < 0.5 dex), possibly created during the last merger event. In this work we used high-quality spectroscopic data from Gemini/GMOS to present an analysis of the the star formation history of three GCs associated to this galaxy. Although recent works show the presence of multiple stellar populations in old GCs in the Milky Way and nearby galaxies, this project constitutes one of the first studies to show multiple stellar populations in young extragalactic GCs.
format	Articulo Articulo
author	Sesto, Leandro Alberto Escudero, Carlos Gabriel Faifer, Favio Raúl Reynaldi, María Victoria Smith Castelli, Analía Viviana Barbosa, C. E.
author_facet	Sesto, Leandro Alberto Escudero, Carlos Gabriel Faifer, Favio Raúl Reynaldi, María Victoria Smith Castelli, Analía Viviana Barbosa, C. E.
author_sort	Sesto, Leandro Alberto
title	Star formation history of stellar systems in NGC 1316
title_short	Star formation history of stellar systems in NGC 1316
title_full	Star formation history of stellar systems in NGC 1316
title_fullStr	Star formation history of stellar systems in NGC 1316
title_full_unstemmed	Star formation history of stellar systems in NGC 1316
title_sort	star formation history of stellar systems in ngc 1316
publishDate	2021
url	http://sedici.unlp.edu.ar/handle/10915/176064
work_keys_str_mv	AT sestoleandroalberto starformationhistoryofstellarsystemsinngc1316 AT escuderocarlosgabriel starformationhistoryofstellarsystemsinngc1316 AT faiferfavioraul starformationhistoryofstellarsystemsinngc1316 AT reynaldimariavictoria starformationhistoryofstellarsystemsinngc1316 AT smithcastellianaliaviviana starformationhistoryofstellarsystemsinngc1316 AT barbosace starformationhistoryofstellarsystemsinngc1316
_version_	1845116747071356928

Star formation history of stellar systems in NGC 1316

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