Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modified Gravity and Large Scale Flows   Reconstruction of the local velocity field from the overdensity field and a
gravitational acceleration that falls off from a point mass as r^-2 yields
velocities in broad agreement with peculiar velocities measured with galaxy
distance indicators. MONDian gravity does not. To quantify this, we introduce
the velocity angular correlation function as a diagnostic of peculiar velocity
field alignment and coherence as a function of scale. It is independent of the
bias parameter of structure formation in the standard model of cosmology and
the acceleration parameter of MOND. A modified gravity acceleration consistent
with observed large scale structure would need to asymptote to zero at large
distances more like r^-2, than r^-1.

28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
18
The categories of this paper are: econ
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
1
The categories of this paper are: cs