Discovery of new Milky way star cluster candidates in the 2MASS point source catalog III. Follow-up observations of cluster candidates in the Galactic Center region

J. Borissova, V. D. Ivanov, D. Minniti, D. Geisler, A. W. Stephens

Resultado de la investigación: Article

27 Citas (Scopus)

Resumen

This paper is part of a project to search the inner Milky Way for hidden massive clusters and to address the question of whether our Galaxy still forms clusters similar to the progenitors of the present-day globular clusters. We report high angular resolution deep near-infrared imaging of 21 cluster candidates selected from the catalogues of Bica et al. (2003a, A&A, 397, 177) and Dutra et al. (2003a, A&A, 400, 533) in a region around the Galactic Center. These catalogues were created from visual inspection of the 2MASS images. Seven objects appear to be genuine clusters, and for these objects we present estimates of extinction, distance and in some cases age and mass. Our estimated masses range from 1200 to 5500 M. These clusters are thus significantly smaller than any Galactic globular cluster, and indicate that the formation of massive young clusters such as Arches and Quintuplet is not common in the present-day Milky Way. The remaining 14 objects are either not clusters or cannot be classified based on our data.

Idioma originalEnglish
Páginas (desde-hasta)95-105
Número de páginas11
PublicaciónAstronomy and Astrophysics
Volumen435
N.º1
DOI
EstadoPublished - may 2005

Huella dactilar

star clusters
point sources
catalogs
point source
arch
near infrared
extinction
globular clusters
arches
angular resolution
inspection
galaxies
high resolution
estimates
project
young

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Citar esto

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abstract = "This paper is part of a project to search the inner Milky Way for hidden massive clusters and to address the question of whether our Galaxy still forms clusters similar to the progenitors of the present-day globular clusters. We report high angular resolution deep near-infrared imaging of 21 cluster candidates selected from the catalogues of Bica et al. (2003a, A&A, 397, 177) and Dutra et al. (2003a, A&A, 400, 533) in a region around the Galactic Center. These catalogues were created from visual inspection of the 2MASS images. Seven objects appear to be genuine clusters, and for these objects we present estimates of extinction, distance and in some cases age and mass. Our estimated masses range from 1200 to 5500 M⊙. These clusters are thus significantly smaller than any Galactic globular cluster, and indicate that the formation of massive young clusters such as Arches and Quintuplet is not common in the present-day Milky Way. The remaining 14 objects are either not clusters or cannot be classified based on our data.",
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Discovery of new Milky way star cluster candidates in the 2MASS point source catalog III. Follow-up observations of cluster candidates in the Galactic Center region. / Borissova, J.; Ivanov, V. D.; Minniti, D.; Geisler, D.; Stephens, A. W.

En: Astronomy and Astrophysics, Vol. 435, N.º 1, 05.2005, p. 95-105.

Resultado de la investigación: Article

TY - JOUR

T1 - Discovery of new Milky way star cluster candidates in the 2MASS point source catalog III. Follow-up observations of cluster candidates in the Galactic Center region

AU - Borissova, J.

AU - Ivanov, V. D.

AU - Minniti, D.

AU - Geisler, D.

AU - Stephens, A. W.

PY - 2005/5

Y1 - 2005/5

N2 - This paper is part of a project to search the inner Milky Way for hidden massive clusters and to address the question of whether our Galaxy still forms clusters similar to the progenitors of the present-day globular clusters. We report high angular resolution deep near-infrared imaging of 21 cluster candidates selected from the catalogues of Bica et al. (2003a, A&A, 397, 177) and Dutra et al. (2003a, A&A, 400, 533) in a region around the Galactic Center. These catalogues were created from visual inspection of the 2MASS images. Seven objects appear to be genuine clusters, and for these objects we present estimates of extinction, distance and in some cases age and mass. Our estimated masses range from 1200 to 5500 M⊙. These clusters are thus significantly smaller than any Galactic globular cluster, and indicate that the formation of massive young clusters such as Arches and Quintuplet is not common in the present-day Milky Way. The remaining 14 objects are either not clusters or cannot be classified based on our data.

AB - This paper is part of a project to search the inner Milky Way for hidden massive clusters and to address the question of whether our Galaxy still forms clusters similar to the progenitors of the present-day globular clusters. We report high angular resolution deep near-infrared imaging of 21 cluster candidates selected from the catalogues of Bica et al. (2003a, A&A, 397, 177) and Dutra et al. (2003a, A&A, 400, 533) in a region around the Galactic Center. These catalogues were created from visual inspection of the 2MASS images. Seven objects appear to be genuine clusters, and for these objects we present estimates of extinction, distance and in some cases age and mass. Our estimated masses range from 1200 to 5500 M⊙. These clusters are thus significantly smaller than any Galactic globular cluster, and indicate that the formation of massive young clusters such as Arches and Quintuplet is not common in the present-day Milky Way. The remaining 14 objects are either not clusters or cannot be classified based on our data.

KW - Galaxy: open clusters and associations: general

KW - Infrared: stars

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