We present the results of high resolution VLBI observations at 1.6 and 4.9 GHz of the radio-loud Seyfert galaxy , Mrk 6 .
These observations are able to detect a compact radio core in this galaxy for the first time .
The core has an inverted spectral index ( \alpha ^ { 1.6 } _ { 4.9 } =+1.0 \pm 0.2 ) and a brightness temperature of 1 \times 10 ^ { 8 } K. Three distinct radio components which resemble jet elements and/or hot spots , are also detected .
The position angles of these elongated jet elements point , not only to a curved jet in Mrk 6 , but also towards a connection between the AGN and the kpc-scale radio lobes/bubbles in this galaxy .
Firmer constraints on the star formation rate provided by new Herschel observations ( SFR < 0.8 M _ { \odot } yr ^ { -1 } ) make the starburst-wind powered bubble scenario implausible .
From plasma speeds obtained via prior Chandra X-ray observations , and ram pressure balance arguments for the ISM and radio bubbles , the north-south bubbles are expected to take 7.5 \times 10 ^ { 6 } yr to form , and the east-west bubbles 1.4 \times 10 ^ { 6 } yr. We suggest that the jet axis has changed at least once in Mrk 6 within the last \approx 10 ^ { 7 } yr. A comparison of the nuclear radio-loudness of Mrk 6 and a small sample of Seyfert galaxies with a subset of low-luminosity FRI radio galaxies reveals a continuum in radio properties .