Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The TeV Morphology of the Interacting Supernova Remnant IC 443   The middle-aged supernova remnant IC 443 is interacting with molecular gas in
its surroundings. $Fermi$-LAT has established that its gamma-ray emission at
low energies shows the "pion bump" that is characteristic of hadronic emission.
TeV emission was previously established by MAGIC and VERITAS at a site of
interaction between the shock front and a molecular cloud. VERITAS has
continued to observe IC 443 and can now resolve the emission on few-arcmin
scales. We will present results on the emission morphology and discuss possible
sources of the emission, including the shell of the remnant and other gaseous
structures in the vicinity.

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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: math
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The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: cs
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The categories of this paper are: stat