The young open cluster Markarian 50

We report on a deep CCD UBV(RI) C photometric survey in the region of the young open cluster Markarian 50. The new photometric data allow us to extend the cluster membership down to V ≈ 17.5, about 2 mag deeper than any previous investigation. On the basis of these data we derive a distance d = 3460...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Baume, Gustavo, Vázquez, Rubén Ángel, Carraro, Giovanni
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2004
Materias:	Ciencias Astronómicas Open clusters and associations: individual: Markarian 50 Stars: imaging Stars: individual: HD 219460 Stars: individual: WR 157 Stars: luminosity function, mass function Stars: Wolf-Rayet
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/83384
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-83384
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 Open clusters and associations: individual: Markarian 50 Stars: imaging Stars: individual: HD 219460 Stars: individual: WR 157 Stars: luminosity function, mass function Stars: Wolf-Rayet
spellingShingle	Ciencias Astronómicas Open clusters and associations: individual: Markarian 50 Stars: imaging Stars: individual: HD 219460 Stars: individual: WR 157 Stars: luminosity function, mass function Stars: Wolf-Rayet Baume, Gustavo Vázquez, Rubén Ángel Carraro, Giovanni The young open cluster Markarian 50
topic_facet	Ciencias Astronómicas Open clusters and associations: individual: Markarian 50 Stars: imaging Stars: individual: HD 219460 Stars: individual: WR 157 Stars: luminosity function, mass function Stars: Wolf-Rayet
description	We report on a deep CCD UBV(RI) C photometric survey in the region of the young open cluster Markarian 50. The new photometric data allow us to extend the cluster membership down to V ≈ 17.5, about 2 mag deeper than any previous investigation. On the basis of these data we derive a distance d = 3460 ± 350 pc (V o - M v = 12.7 ± 0.2), which turns out to be only slightly lower than previous estimates. The cluster presents differential reddening, with E(B-V) values ranging from 0.69 to 1.1. The brightest member (HD 219460) is a double star, which we separate photometrically for the first time, providing individual magnitudes and colours for each component. One of them is a Wolf-Rayet (WR) star and, according to evolutionary models, the mass of its progenitor should be greater than ∼20 M⊙. The age obtained for the cluster is 7.5 ± 2 Myr and the mass function for the most massive stars (M > 1 M⊙) presents a slope x ≈ 1.0.
format	Articulo Articulo
author	Baume, Gustavo Vázquez, Rubén Ángel Carraro, Giovanni
author_facet	Baume, Gustavo Vázquez, Rubén Ángel Carraro, Giovanni
author_sort	Baume, Gustavo
title	The young open cluster Markarian 50
title_short	The young open cluster Markarian 50
title_full	The young open cluster Markarian 50
title_fullStr	The young open cluster Markarian 50
title_full_unstemmed	The young open cluster Markarian 50
title_sort	young open cluster markarian 50
publishDate	2004
url	http://sedici.unlp.edu.ar/handle/10915/83384
work_keys_str_mv	AT baumegustavo theyoungopenclustermarkarian50 AT vazquezrubenangel theyoungopenclustermarkarian50 AT carrarogiovanni theyoungopenclustermarkarian50 AT baumegustavo youngopenclustermarkarian50 AT vazquezrubenangel youngopenclustermarkarian50 AT carrarogiovanni youngopenclustermarkarian50
bdutipo_str	Repositorios
_version_	1764820488560836611

The young open cluster Markarian 50

Ejemplares similares