Simultaneous space and phase resolved X-ray polarimetry of the Crab pulsar and nebula

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00572865" target="_blank" >RIV/67985815:_____/23:00572865 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41550-023-01936-8" target="_blank" >https://doi.org/10.1038/s41550-023-01936-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41550-023-01936-8" target="_blank" >10.1038/s41550-023-01936-8</a>

Result language
angličtina
Original language name
Simultaneous space and phase resolved X-ray polarimetry of the Crab pulsar and nebula
Original language description
The Crab pulsar and its nebula are among the most studied astrophysical systems, and constitute one of the most promising environments where high-energy processes and particle acceleration can be investigated. They are the only objects for which significant X-ray polarization was detected in the past. Here we present the Imaging X-ray Polarimetry Explorer (IXPE) observation of the Crab pulsar and nebula. The total pulsar pulsed emission in the [2–8] keV energy range is unpolarized. Significant polarization up to 15% is detected in the core of the main peak. The nebula has a total space integrated polarized degree of 20% and polarization angle of 145°. The polarized maps show a large variation in the local polarization, and regions with a polarized degree up to 45–50%. The polarization pattern suggests a predominantly toroidal magnetic field. Our findings for the pulsar are inconsistent with most inner magnetospheric models, and suggest emission is more likely to come from the wind region. For the nebula, the polarization map suggests a patchy distribution of turbulence, uncorrelated with the intensity, in contrast with simple expectations from numerical models. © 2023, The Author(s), under exclusive licence to Springer Nature Limited.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

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

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)