Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Extreme Ultraviolet Deficit - Jet Connection in the Quasar 1442+101   In previous studies, it has been shown that the long term time average jet
power, $\overline{Q}$, is correlated with the spectral index in the extreme
ultraviolet (EUV), $\alpha_{EUV}$ (defined by $F_{\nu} \sim
\nu^{-\alpha_{EUV}}$ computed between 700\AA\, and 1100\AA\,). Larger
$\overline{Q}$ tends to decrease the EUV emission. This is a curious
relationship because it connects a long term average over $\sim 10^{6}$ years
with an instantaneous measurement of the EUV. The EUV appears to be emitted
adjacent to the central supermassive black hole and the most straightforward
explanation of the correlation is that the EUV emitting region interacts in
real time with the jet launching mechanism. Alternatively stated, the
$\overline{Q}$ - $\alpha_{EUV}$ correlation is a manifestation of a
contemporaneous (real time) jet power, $Q(t)$, correlation with $\alpha_{EUV}$.
In order to explore this possibility, this paper considers the time variability
of the strong radio jet of the quasar 1442+101 that is not aberrated by strong
Doppler enhancement. This high redshift (z = 3.55) quasar is uniquely suited
for this endeavor as the EUV is redshifted into the optical observing window
allowing for convenient monitoring. More importantly, it is bright enough to be
seen through the Lyman forest and its radio flux is strong enough that it has
been monitored frequently. Quasi-simultaneous monitoring (five epochs spanning
$\sim 40$ years) show that increases in $Q(t)$ correspond to decreases in the
EUV as expected.

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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: bayes-an
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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: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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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: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: cond-mat
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The categories of this paper are: econ