Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discovery and characterisation of detached M-dwarf eclipsing binaries in
  the WFCAM Transit Survey   We report the discovery of 16 detached M-dwarf eclipsing binaries with J<16
mag and provide a detailed characterisation of three of them, using
high-precision infrared light curves from the WFCAM Transit Survey (WTS). Such
systems provide the most accurate and model-independent method for measuring
the fundamental parameters of these poorly understood yet numerous stars, which
currently lack sufficient observations to precisely calibrate stellar evolution
models. We fully solve for the masses and radii of three of the systems,
finding orbital periods in the range 1.5<P<4.9 days, with masses spanning
0.35-0.50 Msun and radii between 0.38-0.50 Rsun, with uncertainties of
~3.5-6.4% in mass and ~2.7-5.5% in radius. Close-companions in short-period
binaries are expected to be tidally-locked into fast rotational velocities,
resulting in high levels of magnetic activity. This is predicted to inflate
their radii by inhibiting convective flow and increasing star spot coverage.
The radii of the WTS systems are inflated above model predictions by ~3-12%, in
agreement with the observed trend, despite an expected lower systematic
contribution from star spots signals at infrared wavelengths. We searched for
correlation between the orbital period and radius inflation by combining our
results with all existing M-dwarf radius measurements of comparable precision,
but we found no statistically significant evidence for a decrease in radius
inflation for longer period, less active systems. Radius inflation continues to
exists in non-synchronised systems indicating that the problem remains even for
very low activity M-dwarfs. Resolving this issue is vital not only for
understanding the most populous stars in the Universe, but also for
characterising their planetary companions, which hold the best prospects for
finding Earth-like planets in the traditional habitable zone.

31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
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The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
1
The categories of this paper are: cs