X-ray polarization evidence for a 200-year-old flare of Sgr A*

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00575424" target="_blank" >RIV/67985815:_____/23:00575424 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41586-023-06064-x" target="_blank" >https://doi.org/10.1038/s41586-023-06064-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41586-023-06064-x" target="_blank" >10.1038/s41586-023-06064-x</a>

Result language
angličtina
Original language name
X-ray polarization evidence for a 200-year-old flare of Sgr A*
Original language description
We report observations of polarized X-ray emission in the direction of the molecular clouds in the Galactic Centre using the Imaging X-ray Polarimetry Explorer. We measure a polarization degree of 31% ± 11%, and a polarization angle of −48° ± 11°. The polarization angle is consistent with Sgr A* being the primary source of the emission, and the polarization degree implies that some 200 years ago, the X-ray luminosity of Sgr A* was briefly comparable to that of a Seyfert galaxy.
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)