Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The near-IR luminosity-metallicity relation of dwarf irregular galaxies   We report on the recent developments of our long-term investigation of the
near-IR luminosity-metallicity relation for dwarf irregular galaxies in nearby
groups. A very well-defined relation is emerging from our observational
database, and a preliminary discussion of its implications is given.

30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
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The categories of this paper are: econ
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
1
The categories of this paper are: cs