NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant

Based on a deep optical CCD [UBV(RI)C] photometric survey and on the Two-Micron All Sky Survey (2MASS) data, we derived the main parameters of the open cluster NGC 2401. We found that this cluster is placed at 6.3 ± 0.5 kpc (Vo - M<...

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Detalles Bibliográficos
Autores principales:	Baume, Gustavo Luis, Moitinho, A., Vázquez, Rubén Ángel, Solivella, Gladys Rebeca, Carraro, G., Villanova, S.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2006
Materias:	Ciencias Astronómicas Galaxy: structure Open clusters and associations: individual: NGC 2401 Stars: emission-line, Be Stars: imaging Stars: individual: LSS 440 Stars: luminosity function, mass function
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/84880
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-84880
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Astronómicas Galaxy: structure Open clusters and associations: individual: NGC 2401 Stars: emission-line, Be Stars: imaging Stars: individual: LSS 440 Stars: luminosity function, mass function
spellingShingle	Ciencias Astronómicas Galaxy: structure Open clusters and associations: individual: NGC 2401 Stars: emission-line, Be Stars: imaging Stars: individual: LSS 440 Stars: luminosity function, mass function Baume, Gustavo Luis Moitinho, A. Vázquez, Rubén Ángel Solivella, Gladys Rebeca Carraro, G. Villanova, S. NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
topic_facet	Ciencias Astronómicas Galaxy: structure Open clusters and associations: individual: NGC 2401 Stars: emission-line, Be Stars: imaging Stars: individual: LSS 440 Stars: luminosity function, mass function
description	Based on a deep optical CCD [<i>UBV(RI)</i><SUB>C</SUB>] photometric survey and on the Two-Micron All Sky Survey (2MASS) data, we derived the main parameters of the open cluster NGC 2401. We found that this cluster is placed at 6.3 ± 0.5 kpc (V<SUB>o</SUB> - M<SUB>v</SUB> = 14.0 ± 0.2) from the Sun and is 25 Myr old, which allows us to identify NGC 2401 as a member of the young population belonging to the innermost side of the extension of the Norma-Cygnus spiral arm in the Third Galactic Quadrant. A spectroscopic study of the emission star LSS 440 that lies in the cluster area revealed that it is a B0Ve star; however, we could not confirm that it is a cluster member. We also constructed the cluster luminosity function (LF) down to V ∼ 22 and the cluster initial mass function (IMF) for all stars with masses above M ∼ 1-2 M ⊙. It was found that the slope of the cluster IMF is x ≈ 1.8 ± 0.2. The presence of a probable pre-main-sequence (PMS) star population associated with the cluster is weakly revealed.
format	Articulo Articulo
author	Baume, Gustavo Luis Moitinho, A. Vázquez, Rubén Ángel Solivella, Gladys Rebeca Carraro, G. Villanova, S.
author_facet	Baume, Gustavo Luis Moitinho, A. Vázquez, Rubén Ángel Solivella, Gladys Rebeca Carraro, G. Villanova, S.
author_sort	Baume, Gustavo Luis
title	NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_short	NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_full	NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_fullStr	NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_full_unstemmed	NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_sort	ngc 2401: a template of the young population of the norma-cygnus arm in the third galactic quadrant
publishDate	2006
url	http://sedici.unlp.edu.ar/handle/10915/84880
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bdutipo_str	Repositorios
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NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant

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