A persistent double nuclear structure in 3C 84

3C 84 (NGC 1275) is the radio source at center of Perseus Cluster and exhibits a bright jet. We observed with Global Millimeter VLBI Array (GMVA) between 2008 2015, typical angular resolution $\sim$50 $\mu$as. The observations revealed consistent double nuclear structure separated by $\sim$770 gravitational radii assuming Black Hole mass 3.2 $\times 10^{8}$ $M_{\odot}$. region likely too broad to be true jet base anchored in accretion disk or ergosphere. A cone parabola were fit stacked (time averaged) image region. data did not strongly prefer either fit, but combined jet/counter-jet ratio analysis, an upper limit on viewing angle inner $\leq$35$^{\circ}$ was found. This provides evidence for variation along (and therefore bent jet) within $\sim$0.5 parsec launching In case conical jet, apex located $\sim$2400 upstream up $\sim$600 parabolic case. found possible correlation brightness temperature relative position components, which may indicate rotation