Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Star and Cluster Formation in the Large Magellanic Cloud   A great burst of cluster formation increased the rate at which open clusters
were formed in the Large Magellanic Cloud 3-5 Gyr ago by at least an order of
magnitude. On the other hand the rate of star formation ~ 4 Gyr appears to have
increased by a factor of only 2-4. This shows that the rate of cluster
formation is not a good tracer of the rate at which stars are formed.
Normalized to the same rate of star formation, the Large Cloud is presently
forming / 600 times more star clusters than the Local Group dwarf irregular IC
1613. The high rate of cluster formation in merging gas-rich galaxies suggests
that strong shocks might favor the formation of clusters.

34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg