Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Solar Neighborhood XXIII CCD Photometric Distance Estimates of SCR
  Targets -- 77 M Dwarf Systems within 25 Parsecs   We present CCD photometric distance estimates of 100 SCR (SuperCOSMOS RECONS)
systems with $\mu$ $\geq$ 0$\farcs$18/yr, 28 of which are new discoveries
previously unpublished in this series of papers. These distances are estimated
using a combination of new $VRI$ photometry acquired at CTIO and $JHK$
magnitudes extracted from 2MASS. The estimates are improvements over those
determined using photographic plate $BRI$ magnitudes from SuperCOSMOS plus
$JHK$, as presented in the original discovery papers. In total, 77 of the 100
systems investigated are predicted to be within 25 pc. If all 77 systems are
confirmed to have $\pi$$_{trig}$ $\ge$ 40 milliarcseconds, this sample would
represent a 23% increase in M dwarf systems nearer than 25 pc in the southern
sky.

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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con