Por favor, use este identificador para citar o enlazar este ítem:
http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1488| Observational evidence for the link between the variable optical continuum and the subparsec-scale jet of the radio galaxy 3C 390.3 | |
| JONATHAN FRANCISCO LEON TAVARES VAHRAM CHAVUSHYAN | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Galaxies: jets Galaxies: nuclei Galaxies: individual: 3C390.3 – Radiation mechanisms: non-thermal | |
| The mechanism and the region of generation of variable continuum emission are poorly understood for radio-loud AGN because of a complexity of the nuclear region. High-resolution radio VLBI (very long baseline interferometry) observations allow zooming into a subparsec-scale region of the jet in the radio-loud galaxy 3C390.3. We combined the radio VLBI and the optical data covering the time period of 14 years to look for a link between optical flares and parsec-scale jet. We identify two stationary and nine moving radio features in the innermost subparsec-scale region of the jet. All nine ejections are associated with optical flares. We found a significant correlation (at a confidence level of > 99.99%) between the ejected jet components and optical continuum flares. The epochs at which the moving knots pass through the location of a stationary radio feature and the optical light curve reaches the maximum are correlated. The radio events follow the maxima of optical flares with the mean time delay of 0.10 ± 0.04 years. This correlation can be understood if the variable optical continuum emission is generated in the innermost part of the jet. A possible mechanism of the energy release is the ejection of knots of high-energy electrons that are accelerated in the jet flow and generate flares of synchrotron continuum emission in the wide range of frequencies from radio to X-ray bands. In this scenario, the beamed optical continuum emission from the jet and counterjet ionizes a gas in a subrelativistic outflow surrounding the jet, which results in a formation of two outflowing conical regions with broad emission lines (in addition to the conventional broad line región around the central nucleus). | |
| Monthly Notices of the Royal Astronomical Society | |
| 2010 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Arshakian, T.G., et al., (2010). Observational evidence for the link between the variable optical continuum and the subparsec-scale jet of the radio galaxy 3C 390.3, Monthly Notices of the Royal Astronomical Society. Vol. 401(2):1-10 | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
Cargar archivos:
| Fichero | Tamaño | Formato | |
|---|---|---|---|
| 16.-A.pdf | 397.9 kB | Adobe PDF | Visualizar/Abrir |