Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Confirmation of the VeLLO L1148-IRS: Star Formation at very low (Column)
  Density   We report the detection of a compact (of order 5 arcsec; about 1800 AU
projected size) CO outflow from L1148-IRS. This confirms that this Spitzer
source is physically associated with the nearby (about 325 pc) L1148 dense
core. Radiative transfer modeling suggests an internal luminosity of 0.08 to
0.13 L_sun. This validates L1148-IRS as a Very Low Luminosity Object (VeLLO; L
< 0.1 L_sun). The L1148 dense core has unusually low densities and column
densities for a star-forming core. It is difficult to understand how L1148-IRS
might have formed under these conditions. Independent of the exact final mass
of this VeLLO (which is likely < 0.24 M_sun), L1148-IRS and similar VeLLOs
might hold some clues about the isolated formation of brown dwarfs.

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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-ph
19
The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
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The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
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The categories of this paper are: supr-con
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph