Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A spatially resolved plerionic X-ray nebula around PSR B0540-69   We present a high resolution Chandra X-ray observation of PSR B0540-69, the
Crab-like 50 msec pulsar in the Large Magellanic Cloud. We use phase-resolved
imaging to decompose the extended X-ray emission, as expected of a synchrotron
nebula, from the point-like emission of the pulsar. The image of the pulsed
X-ray emission shows a well-defined point-spread function of the observation,
while the resolved nebula has a morphology and size remarkably similar to the
Crab nebula, including evidence for a jet-like feature from PSR B0540-69. The
patchy outer shell, which most likely represents the expanding blast-wave of
the supernova, is reminiscent of that seen in radio. Based on morphology, size,
and energetics there can be little doubt that PSR B0540-69 is an analogous
system to the Crab but located in our neighboring galaxy.

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The categories of this paper are: ao-sci
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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: atom-ph
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The categories of this paper are: nucl-ex
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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: supr-con
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-bio
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The categories of this paper are: cond-mat