Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The galaxy counts-in-cells distribution from the SDSS   We determine the galaxy counts-in-cells distribution from the Sloan Digital
Sky Survey (SDSS) for 3D spherical cells in redshift space as well as for 2D
projected cells. We find that cosmic variance in the SDSS causes the
counts-in-cells distributions in different quadrants to differ from each other
by up to 20%. We also find that within this cosmic variance, the overall galaxy
counts-in-cells distribution agrees with both the gravitational
quasi-equilibrium distribution and the negative binomial distribution. We also
find that brighter galaxies are more strongly clustered than if they were
randomly selected from a larger complete sample that includes galaxies of all
luminosities. The results suggest that bright galaxies could be in dark matter
haloes separated by less than ~10 Mpc/h.

25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas