Star cluster candidates in M81

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

Resultado de la investigación: Article

5 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 originalEnglish
Páginas (desde-hasta)1413-1425
Número de páginas13
PublicaciónAstronomical Journal
Volumen139
N.º4
DOI
EstadoPublished - 2010

Huella dactilar

star clusters
globular clusters
open clusters
galaxies
cameras
color-color diagram
color
Hubble Space Telescope
catalogs
diagram

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Citar esto

Nantais, J. B., Huchra, J. P., McLeod, B., Strader, J., & Brodie, J. P. (2010). Star cluster candidates in M81. Astronomical Journal, 139(4), 1413-1425. https://doi.org/10.1088/0004-6256/139/4/1413
Nantais, Julie B. ; Huchra, John P. ; McLeod, Brian ; Strader, Jay ; Brodie, Jean P. / Star cluster candidates in M81. En: Astronomical Journal. 2010 ; Vol. 139, N.º 4. pp. 1413-1425.
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Nantais, JB, Huchra, JP, McLeod, B, Strader, J & Brodie, JP 2010, 'Star cluster candidates in M81', Astronomical Journal, vol. 139, n.º 4, pp. 1413-1425. https://doi.org/10.1088/0004-6256/139/4/1413

Star cluster candidates in M81. / Nantais, Julie B.; Huchra, John P.; McLeod, Brian; Strader, Jay; Brodie, Jean P.

En: Astronomical Journal, Vol. 139, N.º 4, 2010, p. 1413-1425.

Resultado de la investigación: Article

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AU - Nantais, Julie B.

AU - Huchra, John P.

AU - McLeod, Brian

AU - Strader, Jay

AU - Brodie, Jean P.

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Nantais JB, Huchra JP, McLeod B, Strader J, Brodie JP. Star cluster candidates in M81. Astronomical Journal. 2010;139(4):1413-1425. https://doi.org/10.1088/0004-6256/139/4/1413