اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدMulti-wavelength observations of the triple-peaked AGN Mrk 622
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A detailed multi-wavelength study of the properties of the triple-peaked AGN Mrk,622 showing different aspects of the nuclear emission region is presented. Radio, near- and mid-infrared, optical and X-ray data has been considered for the analysis. In the optical, the WHAN diagnostic diagrams show that the three nuclear peaks are strong active galactic nuclei since the EW of $H{alpha}$ is $>$,6 AA, and $log$ [NII]$lambda$6584/H$alpha$, ratio is $>$,-0.4. Optical variability of both the continuum flux and intensity of the narrow emission lines is detected in a time-span of 13 years. The size of the narrow line region is found to be 2.7,pc, with a light-crossing time of 8.7,y. Analysis done to an archival Hubble Space Telescope image at 1055.2,nm shows that the host galaxy has a 3.6,kpc inner bar with PA,=,74$^circ$, faint spiral arms and a pseudobulge, evolving through secular processes. High resolution mid-infrared images obtained with the textit{Gran Telescopio Canarias (GTC)} and the instrument textit{CanariCam} show that the nuclear emission at 11.6 $mu$m is not spatially resolved. Very Large Array archival observations at 10,GHz reveal a core source with a total flux density of 1.47,$pm$,0.03,mJy. The spectral index of the core between 8 and 12,GHz is -0.5,$pm$,0.2, characteristic of AGN. The core deconvolves into a source with dimensions of 82,$pm$,13,mas,$,times,$,41,$pm$,20,mas, and a PA,=,70,$pm$,18,deg; which suggests that the core is elongated or that it is constituted by multiple components distributed along a $sim$65$^circ$ axis.
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