Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wide field photometry of the M104 globular cluster system   We present preliminary results of a wide field study of the globular cluster
system of NGC4594, the Sombrero galaxy. The galaxy was observed in B, V, and R
using the Wide Field Imager on the ESO 2.2m telescope. Using color and shape
criteria to select a sample of highly probable globular cluster candidates, we
measured the radial density profile of clusters out to 40' (100 Kpc) in the
galaxy halo. The colors are consistent with the bimodal color distribution
observed in previous studies. The red cluster candidates show a clear central
concentration relative to the blue clusters. The population of red clusters
does not appear significantly flattened, thus indicating that they are
associated to the galaxy bulge rather than to the disk.

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The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: cond-mat
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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg