Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deep Chandra and multicolor HST follow-up of the jets in two powerful
  radio quasars   We present deep (70-80 ks) Chandra and multicolor HST ACS images of two jets
hosted by the powerful quasars 1136-135 and 1150+497, together with new radio
observations. The sources have an FRII morphology and were selected from our
previous X-ray and optical jet survey for detailed follow up aimed at obtaining
better constraints on the jet multiwavelength morphology and X-ray and optical
spectra of individual knots, and to test emission models deriving physical
parameters more accurately. All the X-ray and optical knots detected in our
previous short exposures are confirmed, together with a few new faint features.
The overlayed maps and the emissivity profiles along the jet show good
correspondence between emission regions at the various wavelengths; a few show
offsets between the knots peaks of <1". In 1150+497 the X-ray, optical, and
radio profiles decrease in similar ways with distance from the core up to ~7",
after which the radio emission increases more than the X-ray one. No X-ray
spectral variations are observed in 1150+497. In 1136-135 an interesting
behavior is observed, whereby, downstream of the most prominent knot at ~ 6.5"
from the core, the X-ray emission fades while the radio emission brightens. The
X-ray spectrum also varies, with the X-ray photon index flattening from ~2 in
the inner part to ~1.7 to the end of the jet. We intepret the jet behavior in
1136-135 in a scenario where the relativistic flow suffers systematic
deceleration along the jet, and briefly discuss the major consequences of this
scenario (abridged).

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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin
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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: eess
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: physics