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Artículo

A study of the two northern open clusters NGC 1582 and NGC 1663

Baume, Gustavo LuisIcon ; Villanova, S.; Carraro, Giovanni
Fecha de publicación: 08/2003
Editorial: EDP Sciences
Revista: Astronomy and Astrophysics
ISSN: 0004-6361
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Astronomía

Resumen

We present CCD UBV(I)C observations obtained in the field of the previously unstudied northern open clusters NGC 1582 and NGC 1663. For the former, we also provide high-resolution spectra of the brightest stars and complement our data with Two-Micron All-Sky-Survey (2MASS) near-infrared photometry and with astrometric data from the Tycho-2 catalog. From the analysis of all these data, we argue that NGC 1582 is a very poor, quite large and heavily contaminated open cluster. It turns out to have a reddening EB-V = 0.35 +/- 0.03, to be situated 1100 +/- 100 pc from the Sun and to have an age of 300 +/- 100 Myr. On the other hand, we were not able to unambiguously clarify the nature of NGC 1663. By assuming it is a real cluster and from the analysis of its photometric diagrams, we found a color excess value EB-V = 0.20, an intermediate age value ( ~ 2000 Myr) and a distance of about 700 pc. The distribution of the stars in the region however suggests we are probably facing an open cluster remnant. As an additional result, we obtained aperture photometry of three previously unclassified galaxies placed in the field of NGC 1663 and performed a preliminary morphological classification of them.
Palabras clave: Open Clusters , Associations , Galaxy , Ngc 1582 (Galaxia) , Ngc 1663 (Galaxia)
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/36732
URL: https://www.aanda.org/articles/aa/abs/2003/32/aah4345/aah4345.html
DOI: http://dx.doi.org/10.1051/0004-6361:20030831
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Articulos de INST.DE ASTROFISICA LA PLATA
Citación
Baume, Gustavo Luis; Villanova, S.; Carraro, Giovanni; A study of the two northern open clusters NGC 1582 and NGC 1663; EDP Sciences; Astronomy and Astrophysics; 407; 8-2003; 527-539
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