Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detection of an X-ray jet in 3C 371 with Chandra   We report the detection at X-rays of the radio/optical jet of 3C 371, from a
short (10 ks) Chandra exposure in March 2000. We also present a new MERLIN
observation at 1.4 GHz together with a renalysis of the archival HST WFPC2
F555W image. Despite the limited signal-to-noise ratio of the Chandra data, the
X-ray morphology is clearly different from that of the radio/optical emission,
with the brightest X-ray knot at 1.7" from the nucleus and little X-ray
emission from the brightest radio/optical knot at 3.1". We construct the
spectral energy distributions for the two emission regions at 1.7" and 3.1".
Both show that the X-ray flux is below the extrapolation from the
radio-to-optical continuum, suggesting moderately beamed synchrotron from an
electron population with decreasing high energy cut-off as a plausible emission
mechanism.

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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
1
The categories of this paper are: cs
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
0
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: ao-sci
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The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: solv-int