Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extending the Planetary Mass Function to Earth Mass by Microlensing at
  Moderately High Magnification   A measurement by microlensing of the planetary mass function of planets with
masses ranging from 5M_E to 10M_J and orbital radii from 0.5 to 10 AU was
reported recently. A strategy for extending the mass range down to (1-3)M_E is
proposed here. This entails monitoring the peaks of a few tens of microlensing
events with moderately high magnifications with 1-2m class telescopes. Planets
of a few Earth masses are found to produce deviations of ~ 5% to the peaks of
microlensing light curves with durations ~ (0.7-3)hr in events with
magnification ~ 100 if the projected separation of the planet lies in the
annular region (0.85-1.2)r_E. Similar deviations are produced by Earth mass
planets in the annular region (0.95-1.05)r_E. It is possible that sub-Earths
could be detected very close to the Einstein ring if they are sufficiently
abundant, and also planetary systems with more than one low mass planet.

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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: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin