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J/MNRAS/401/1965 Globular clusters in M104 (Harris+, 2010)
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table1.dat
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Beginning of ReadMe :J/MNRAS/401/1965 Globular clusters in M104 (Harris+, 2010)
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Diamonds on the Hat: globular clusters in the Sombrero galaxy (M104).
Harris W.E., Spitler L.R., Forbes D.A., Bailin J.
<Mon. Not. R. Astron. Soc., 401, 1965-1982 (2010)>
=2010MNRAS.401.1965H
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ADC_Keywords: Galaxies, nearby ; Clusters, globular ; Photometry, HST
Keywords: globular clusters: general - galaxies: individual (M104) -
galaxies: star clusters
Abstract:
Images from the Hubble Space Telescope Advanced Camera for surveys are
used to carry out a new photometric study of the globular clusters
(GCs) in M104, the Sombrero galaxy. The primary focus of our study is
the characteristic distribution function of linear sizes [size
distribution function (SDF)] of the GCs. We measure the effective
radii for 652 clusters with point spread function-convolved King and
Wilson dynamical model fits. The SDF is remarkably similar to those
measured for other large galaxies of all types, adding strong support
to the view that it is a 'universal' feature of GC systems.
We use the Sombrero and Milky Way data and the formation models of
Baumgardt & Kroupa (2007MNRAS.380.1589B) to develop a more general
interpretation of the SDF for GCs.
Description:
Preprocessing of the raw image data is described in Paper I (Spitler
et al., 2006AJ....132.1593S). The mosaics of six pointings in each
filter were constructed at Space Telescope Science Institute and are
publicly available.