A magnetized torus for modeling Sagittarius A* millimeter images and spectra

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F15%3A%230005468" target="_blank" >RIV/47813059:19240/15:#0005468 - isvavai.cz</a>
Result on the web
<a href="http://www.aanda.org/articles/aa/abs/2015/02/aa24306-14/aa24306-14.html" target="_blank" >http://www.aanda.org/articles/aa/abs/2015/02/aa24306-14/aa24306-14.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201424306" target="_blank" >10.1051/0004-6361/201424306</a>

Result language
angličtina
Original language name
A magnetized torus for modeling Sagittarius A* millimeter images and spectra
Original language description
The supermassive black hole, Sagittarius (Sgr) A*, in the centre of our Galaxy has the largest angular size in the sky among all astrophysical black holes. Its shadow, assuming no rotation, spans similar to 50 mu as. Resolving such dimensions has long been out of reach for astronomical instruments until a new generation of interferometers being operational during this decade. Of particular interest is the Event Horizon Telescope (EHT) with resolution similar to 20 mu as in the millimeter- wavelength range 0.87 mm - 1.3 mm. We investigate the ability of the fully general relativistic Komissarov (2006, MNRAS, 368, 993) analytical magnetized torus model to account for observable constraints at Sgr A* in the centimeter and millimeter domains. The impact ofthe magnetic field geometry on the observables is also studied. We show that the torus model is capable of reproducing spectral constraints in the millimeter domain, and in particular in the observable domain of the EHT. However, the tor
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
<a href="/en/project/EE2.3.20.0071" target="_blank" >EE2.3.20.0071: Supporting Integration with the International Theoretical and Observational Research Network in Relativistic Astrophysics of Compact Objects</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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