XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ~0.41

We report on a detailed X-ray study of the extended emission of the intracluster medium (ICM) around NGC3268 in the Antlia Cluster of galaxies, together with a characterization of an extended source in the field, namely a background cluster of galaxies at z ~ 0.41, which was previously accounted as...

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Detalles Bibliográficos
Autores principales: Gargiulo, Ignacio Daniel, García, Federico, Combi, Jorge Ariel, Caso, Juan Pablo, Bassino, Lilia Patricia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Astronomía
Galaxies: clusters: individual: (ACO S636)
Galaxies: clusters: intracluster medium
X-rays: galaxies: clusters
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/94047
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/sty1401/5017499
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-94047
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Galaxies: clusters: individual: (ACO S636)
Galaxies: clusters: intracluster medium
X-rays: galaxies: clusters
spellingShingle Astronomía
Galaxies: clusters: individual: (ACO S636)
Galaxies: clusters: intracluster medium
X-rays: galaxies: clusters
Gargiulo, Ignacio Daniel
García, Federico
Combi, Jorge Ariel
Caso, Juan Pablo
Bassino, Lilia Patricia
XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ~0.41
topic_facet Astronomía
Galaxies: clusters: individual: (ACO S636)
Galaxies: clusters: intracluster medium
X-rays: galaxies: clusters
description We report on a detailed X-ray study of the extended emission of the intracluster medium (ICM) around NGC3268 in the Antlia Cluster of galaxies, together with a characterization of an extended source in the field, namely a background cluster of galaxies at z ~ 0.41, which was previously accounted as an X-ray point source. The spectral properties of the extended emission of the gas present in Antlia were studied using data from the XMM-Newton satellite, complemented with optical images of Cerro Tololo Inter-American Observatory (CTIO) Blanco telescope, to attain for associations of the optical sources with the X-ray emission. The XMM-Newton observations show that the intracluster gas is concentrated in a region centred in one of the main galaxies of the cluster, NGC3268. By means of a spatially resolved spectral analysis, we derived abundances of the ICM plasma. We found a wall-like feature in the north-east direction, where the gas is characterized by a lower temperature with respect to the rest of the ICM. Furthermore, using combined optical observations, we inferred the presence of an elliptical galaxy in the centre of the extended X-ray source considered as a background cluster, which favours this interpretation.
format Articulo
Articulo
author Gargiulo, Ignacio Daniel
García, Federico
Combi, Jorge Ariel
Caso, Juan Pablo
Bassino, Lilia Patricia
author_facet Gargiulo, Ignacio Daniel
García, Federico
Combi, Jorge Ariel
Caso, Juan Pablo
Bassino, Lilia Patricia
author_sort Gargiulo, Ignacio Daniel
title XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ~0.41
title_short XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ~0.41
title_full XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ~0.41
title_fullStr XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ~0.41
title_full_unstemmed XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ~0.41
title_sort xmm-newton observations of ngc 3268 in the antlia galaxy cluster: characterization of a hidden group of galaxies at z ~0.41
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/94047
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/sty1401/5017499
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