Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: KELT-23Ab: A Hot Jupiter Transiting a Near-Solar Twin Close to the TESS
  and JWST Continuous Viewing Zones   We announce the discovery of KELT-23Ab, a hot Jupiter transiting the
relatively bright ($V=10.3$) star BD+66 911 (TYC 4187-996-1), and characterize
the system using follow-up photometry and spectroscopy. A global fit to the
system yields host-star properties of $T_{eff}=5900\pm49 K$,
$M_*=0.945^{+0.060}_{-0.054} M_{\odot}$, $R_*=0.995\pm0.015 R_{\odot}$,
$L_*=1.082^{+0.051}_{-0.048} L_{\odot}$, log$g_{*}=4.418^{+0.026}_{-0.025}$
(cgs), and $\left[{\rm Fe}/{\rm H}\right]=-0.105\pm0.077$. KELT-23Ab is a hot
Jupiter with mass $M_P=0.938^{+0.045}_{-0.042} M_{\rm J}$, radius
$R_P=1.322\pm0.025 R_{\rm J}$, and density $\rho_P=0.504^{+0.038}_{-0.035}$ g
cm$^{-3}$. Intense insolation flux from the star has likely caused KELT-23Ab to
become inflated. The time of inferior conjunction is
$T_0=2458149.40776\pm0.00091~\rm {BJD_{TDB}}$ and the orbital period is
$P=2.255353^{+0.000031}_{-0.000030}$ days. There is strong evidence that
KELT-23A is a member of a long-period binary star system with a less luminous
companion, and due to tidal interactions, the planet is likely to spiral into
its host within roughly a Gyr. This system has one of the highest positive
ecliptic latitudes of all transiting planet hosts known to date, placing it
near the Transiting Planet Survey Satellite and James Webb Space Telescope
continuous viewing zones. Thus we expect it to be an excellent candidate for
long-term monitoring and follow-up with these facilities.

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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: cond-mat
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The categories of this paper are: stat
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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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: gr-qc
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The categories of this paper are: nucl-th