Source-intrinsic near-infrared properties of Sgr A*: Total intensity measurements

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F12%3A00382833" target="_blank" >RIV/67985815:_____/12:00382833 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0067-0049/203/2/18" target="_blank" >http://dx.doi.org/10.1088/0067-0049/203/2/18</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0067-0049/203/2/18" target="_blank" >10.1088/0067-0049/203/2/18</a>

Result language
angličtina
Original language name
Source-intrinsic near-infrared properties of Sgr A*: Total intensity measurements
Original language description
We present a comprehensive data description for K s-band measurements of Sgr A*. We characterize the statistical properties of the variability of Sgr A* in the near-infrared, which we find to be consistent with a single-state process forming a power-lawdistribution of the flux density. We discover a linear rms-flux relation for the flux density range up to 12 mJy on a timescale of 24 minutes. This and the power-law flux density distribution implies a phenomenological, formally nonlinear statistical variability model with which we can simulate the observed variability and extrapolate its behavior to higher flux levels and longer timescales.
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/ME09036" target="_blank" >ME09036: Revealing black holes: spectral, polarimetric and timing studies using satellite data</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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