Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: OSSOS XII: Variability studies of 65 Trans-Neptunian Objects using the
  Hyper Suprime-Cam   We present variability measurements and partial light curves of
Trans-Neptunian Objects (TNOs) from a two-night pilot study using Hyper
Suprime-Cam (HSC) on the Subaru Telescope (Maunakea, Hawai'i, USA). Subaru's
large aperture (8-m) and HSC's large field of view (1.77 square degrees) allow
us to obtain measurements of multiple objects with a range of magnitudes in
each telescope pointing. We observed 65 objects with m_r = 22.6--25.5 mag in
just six pointings, allowing 20--24 visits of each pointing over the two
nights. Our sample, all discovered in the recent Outer Solar System Origins
Survey (OSSOS), span absolute magnitudes H_r = 6.2--10.8 mag and thus
investigates smaller objects than previous light curve projects have typically
studied. Our data supports the existence of a correlation between light curve
amplitude and absolute magnitude seen in other works, but does not support a
correlation between amplitude and orbital inclination. Our sample includes a
number of objects from different dynamical populations within the
trans-Neptunian region, but we do not find any relationship between variability
and dynamical class. We were only able to estimate periods for 12 objects in
the sample and found that a longer baseline of observations is required for
reliable period analysis. We find that 31 objects (just under half of our
sample) have variability greater than 0.4 magnitudes during all of the
observations; in smaller 1.25 hr, 1.85 hr and 2.45 hr windows, the median
variability is 0.13, 0.16 and 0.19 mags, respectively. The fact that
variability on this scale is common for small TNOs has important implications
for discovery surveys (such as OSSOS or the Large Synoptic Survey Telescope)
and color measurements.

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The categories of this paper are: plasm-ph
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
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The categories of this paper are: physics
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The categories of this paper are: acc-phys
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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: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin