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...
Guardado en:
Autores principales: | , , , , |
---|---|
Formato: | Articulo |
Lenguaje: | Inglés |
Publicado: |
2018
|
Materias: | |
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: |
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 |
work_keys_str_mv |
AT gargiuloignaciodaniel xmmnewtonobservationsofngc3268intheantliagalaxyclustercharacterizationofahiddengroupofgalaxiesatz041 AT garciafederico xmmnewtonobservationsofngc3268intheantliagalaxyclustercharacterizationofahiddengroupofgalaxiesatz041 AT combijorgeariel xmmnewtonobservationsofngc3268intheantliagalaxyclustercharacterizationofahiddengroupofgalaxiesatz041 AT casojuanpablo xmmnewtonobservationsofngc3268intheantliagalaxyclustercharacterizationofahiddengroupofgalaxiesatz041 AT bassinoliliapatricia xmmnewtonobservationsofngc3268intheantliagalaxyclustercharacterizationofahiddengroupofgalaxiesatz041 |
bdutipo_str |
Repositorios |
_version_ |
1764820492086149122 |