Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observational Constraints on the Acceleration Discrepancy Problem   I review the data relating to the appearance of the missing mass problem at a
particular acceleration scale. Rotation curves are examined in detail, with
emphasis on the empirical connection between baryonic and total mass
distributions. Other lines of evidence are also considered, including disk
stability, dwarf spheroidals, giant ellipticals, clusters of galaxies, the
microwave background, BBN, and the growth of large scale structure.

25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an