Modeling polarization signatures of NIR radiation from the Sgr A* black hole environs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F12%3A00384841" target="_blank" >RIV/67985815:_____/12:00384841 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/372/1/012073" target="_blank" >http://dx.doi.org/10.1088/1742-6596/372/1/012073</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/372/1/012073" target="_blank" >10.1088/1742-6596/372/1/012073</a>
Alternative languages
Result language
angličtina
Original language name
Modeling polarization signatures of NIR radiation from the Sgr A* black hole environs
Original language description
The near-infrared (NIR) emission of Sagittarius A* (Sgr A*), the source associated with the supermassive black hole (4.4 x 10(6) M-circle dot) at the center of our galaxy, is polarized and highly variable. Correlations between intensity and polarimetricparameters of the observed light curves compared with the predicted ones for different configurations, allow us to extract information about the geometry of the radiating region. Here we present the theoretical polarimetric light curves expected in the case of optically thin NIR emission from overdense regions close to the marginal stable orbit. Using a numerical code we track the time evolution of detectable polarization properties produced by synchrotron emission of compact sources in the vicinity ofthe black hole. We show that the different setups lead to very distinctive patterns in the time profiles of polarized flux and the orientation of the polarization vector and as such may be used for determining the geometry of the accretio
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Astronomy at High Angular Resolution : The Central Kiloparsec in Galactic Nuclei
ISBN
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ISSN
1742-6588
e-ISSN
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Number of pages
5
Pages from-to
"012073/1"-"012073/5"
Publisher name
Institute of Physics Publishing
Place of publication
Bristol
Event location
Bad Honnef
Event date
Aug 28, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000307718600073