The anticentre old open cluster NGC 1883: radial velocity and metallicity

Having already reported on the first photometric study of the intermediate-age open cluster NGC 1883, in this paper we present the first spectroscopic multi-epoch investigation of a sample of evolved stars in the same cluster. The aim is to derive the cluster membership, velocity and metallicity, an...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Villanova, Sandro, Baume, Gustavo Luis, Carraro, Giovanni
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Astronomía
Star clusters
NGC 1883 (galaxia)
Open clusters
Associations
Galaxy
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93652
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2966.2007.11986.x
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-93652
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Star clusters
NGC 1883 (galaxia)
Open clusters
Associations
Galaxy
spellingShingle Astronomía
Star clusters
NGC 1883 (galaxia)
Open clusters
Associations
Galaxy
Villanova, Sandro
Baume, Gustavo Luis
Carraro, Giovanni
The anticentre old open cluster NGC 1883: radial velocity and metallicity
topic_facet Astronomía
Star clusters
NGC 1883 (galaxia)
Open clusters
Associations
Galaxy
description Having already reported on the first photometric study of the intermediate-age open cluster NGC 1883, in this paper we present the first spectroscopic multi-epoch investigation of a sample of evolved stars in the same cluster. The aim is to derive the cluster membership, velocity and metallicity, and to discuss recent claims in the literature that NGC 1883 is as metal-poor as globular clusters in the halo. Besides, as it is one of the few outer Galactic disc intermediate-age open clusters known so far, it is an ideal target to improve our knowledge of the Galactic disc radial abundance gradient, which is a basic ingredient for any chemical evolution model of the Milky Way. The new data we have obtained allow us to make the basic parameters of NGC 1883 more reliable. We find that the cluster has a mean metallicity of [Fe/H] = −0.20 ± 0.22, from which we infer an age (650+70 −70 Myr) close to that of Hyades and a Galactocentric distance of 12.3+0.4 −0.2 kpc. The metal abundance, kinematics and position make NGC 1883 a genuine outer disc intermediate-age open cluster. We confirm that in the outer Galactic disc the abundance gradient is shallower than in the solar vicinity.
format Articulo
Articulo
author Villanova, Sandro
Baume, Gustavo Luis
Carraro, Giovanni
author_facet Villanova, Sandro
Baume, Gustavo Luis
Carraro, Giovanni
author_sort Villanova, Sandro
title The anticentre old open cluster NGC 1883: radial velocity and metallicity
title_short The anticentre old open cluster NGC 1883: radial velocity and metallicity
title_full The anticentre old open cluster NGC 1883: radial velocity and metallicity
title_fullStr The anticentre old open cluster NGC 1883: radial velocity and metallicity
title_full_unstemmed The anticentre old open cluster NGC 1883: radial velocity and metallicity
title_sort anticentre old open cluster ngc 1883: radial velocity and metallicity
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/93652
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2966.2007.11986.x
work_keys_str_mv AT villanovasandro theanticentreoldopenclusterngc1883radialvelocityandmetallicity
AT baumegustavoluis theanticentreoldopenclusterngc1883radialvelocityandmetallicity
AT carrarogiovanni theanticentreoldopenclusterngc1883radialvelocityandmetallicity
AT villanovasandro anticentreoldopenclusterngc1883radialvelocityandmetallicity
AT baumegustavoluis anticentreoldopenclusterngc1883radialvelocityandmetallicity
AT carrarogiovanni anticentreoldopenclusterngc1883radialvelocityandmetallicity
bdutipo_str Repositorios
_version_ 1764820491553472513

Ejemplares similares