Vela pulsar wind nebula X-rays are polarized to near the synchrotron limit

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00604621" target="_blank" >RIV/67985815:_____/22:00604621 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41586-022-05476-5" target="_blank" >https://doi.org/10.1038/s41586-022-05476-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41586-022-05476-5" target="_blank" >10.1038/s41586-022-05476-5</a>

Result language
angličtina
Original language name
Vela pulsar wind nebula X-rays are polarized to near the synchrotron limit
Original language description
Pulsar wind nebulae are formed when outflows of relativistic electrons and positrons hit the surrounding supernova remnant or interstellar medium at a shock front. The Vela pulsar wind nebula is powered by a young pulsar (B0833-45, aged 11,000years)(1) and located inside an extended structure called Vela X, which is itself inside the supernova remnant(2). Previous X-ray observations revealed two prominent arcs that are bisected by a jet and counter jet(3,4). Radio maps have shown high linear polarization of 60% in the outer regions of the nebula(5). Here we report an X-ray observation of the inner part of the nebula, where polarization can exceed 60% at the leading edge-approaching the theoretical limit of what can be produced by synchrotron emission. We infer that, in contrast with the case of the supernova remnant, the electrons in the pulsar wind nebula are accelerated with little or no turbulence in a highly uniform magnetic field.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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