Star cluster candidates in M81

Julie B. Nantais, John P. Huchra, Brian McLeod, Jay Strader, Jean P. Brodie

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)

Resumen

We present a catalog of extended objects in the vicinity of M81 based on a set of 24 Hubble Space Telescope Advanced Camera for Surveys Wide Field Camera F814W (I-band) images. We have found 233 good globular cluster (GC) candidates; 92 candidate HII regions, OB associations, or diffuse open clusters; 489 probable background galaxies; and 1719 unclassified objects. We have color data from ground-based g- and r-band MMT Megacam images for 79 galaxies, 125 GC candidates, 7 HII regions, and 184 unclassified objects. The color-color diagram of GC candidates shows that most fall into the range 0.25 < g - r < 1.25 and 0.5 < r - I < 1.25, similar to the color range of Milky Way GCs. Unclassified objects are often blue, suggesting that many of them are likely to be HII regions and open clusters, although a few galaxies and GCs may be among them.

Idioma originalInglés
Páginas (desde-hasta)1413-1425
Número de páginas13
PublicaciónAstronomical Journal
Volumen139
N.º4
DOI
EstadoPublicada - 2010

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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